Tag Archives: gardening for bees

Gardening for bees in March

From L-R clockwise: Hairy-footed flower bees on Comfrey; wallflowers in rooftop planters; primroses for short-tongued bees; lungworth (pulmonaria) for long-tongued bees

Gardening for bumblebees:

  1. Leave a patch of the garden wild for nesting sites and don’t disturb a nesting site if you find one in a compost bin, under a shed, or even in a watering can (it will only last until the end of the summer).
  2. Put up a box for blue tits. After the chicks have fledged, the box may be inhabited by tree bumblebees. The colony will vacant at the end of summer, so the blue tits can use it again next spring.
  3. Plant dead-nettles, primroses, forget- me-nots, and rosemary to provide food this month for short-tongued bumblebees.
  4. Leave ‘weeds’ like dandelions and alkanet to grow. They provide much-needed pollen and nectar in early spring. And you’ll see lots of different bees coming to feed on a clump of alkanet.
  5. Sow seeds inside now to create more flowers later in the summer. Sweet peas, sunflowers, cosmos and Anise hyssop are some of the easiest to grow in pots. Try growing on a heated mat until the seeds germinate. I’m also going to try chives, viper’s bugloss and cornflowers outside.
  6. Don’t mow the lawn to let clovers flower.
  7. Ditch the weed killers, like Round-up, and any pesticides and bug sprays you may be using on your roses, or any other plants.

Gardening for solitary bees:

  1. Plant lungwort, wallflowers, early-flowering comfrey and flowering currants (Ribes) for long-tongued hairy footed flower bees. Red mason bees and mining bees, with shorter tongues prefer flowering fruit trees, willows, spurges, alkanet and forget-me-nots, and mining bees.
  2. Leave old mortar untouched as hairy-footed flower bees may be nesting here.
  3. Make cob bricks with holes in that hairy-footed flower bees could nest in instead.
  4. Install bee-hotels in a warm location at least a metre off the ground, where red mason bees (Osmia bicornis) can check-in and lay their eggs. We like to use these type of bee hotels with the cardboard tubes. You can take the cocoons out of in the winter and clean them. Leafcutter bees may use the hotels during the summer.
  5. Install a bee observation box which many different solitary bees may nest in over the season, including large-headed resin bees (Heriades truncorum) , common yellow-faced bees (Hyleaus communis), and blue mason bee (Osmia caerulescens) . The box comes with a removal panel which allows you to observe the life cycle of the bees.
  6. Leave a patch of bare earth for mining bees to burrow and nest, and where red mason bees can collect soil to plug their nests.
  7. Leave a pile of tiny pieces of grit that resin bees may use to plug their nests.

Bees to See in March

Here are tips for identifying the different species bees you will hopefully see in March in your garden, patio pots or window boxes if they are planted and maintained for bees.

Shrubs for bees

Honey bee on Mahonia; Buff-tailed bumblebee queen on winter-flowering heather (Photos: Alison Benjamin unless credited)

Many of us don’t have space to plant a tree, but what about planting a few shrubs instead? Researchers at Bristol University has found that one flowering currant (Ribes sanguineum) with 3,000 flowers provides as much nectar as 16,000 primrose (Primula vulgaris) flowers or 69,000 snowdrops (Galanthus nivalis) and that shrubs like mahonia, berberis, pieris, ceanothus, and pyracantha can be similarly nectar rich. 

I’ve been doing my own research to put together a list of easy-to-grow shrubs that if planted sequentially would provide year-round food for bees.

As it’s December, my bee-friendly shrub suggestions start from now. Even though many will grow well in shady spots, do remember that bees prefer to forage in warm, sunny areas. As always this is not a definitive list, but designed for people who want to maximise the limited space in their garden or pots to feed bees all year.

December

Oregon Grape ‘Charity’ (Mahonia x media ‘Charity’ and M. x media ‘Winter Sun’) – produces cheery, bright yellow, lemon-scented flowers rich in nectar and pollen from now until March. Tough, with prickly, holly-like leaves, it does well in dry, shady spots making it a favourite of municipal planting.

Laurustinus (Viburnum tinus) – lovely flat heads of small, white flowers until April can brighten up shady spots.

Clematis ‘Jingle Bells’ (Clematis cirrhosa ‘Jingle Bells’)  –   large, nodding, scented cream-coloured flowers  are ideal for over a doorway. It needs a sunny, sheltered spot and possibly protection from harsh winter frosts.

January

Sweet Box (Sarcococca confus or Sarcococca hookeriana) – works well as an evergreen hedge. Its tiny white flowers carry a heavenly scent until March.

Winter-flowering honeysuckle (Lonicera fragrantissima) is a bushy, deciduous shrub with highly fragrant, cream flowers on bare stems until March.

Winter jasmine (Jasminum nudiflora) doesn’t have the fragrance of other jasmines, but its bright yellow flowers on bare arching branches are a welcome sight in winter.

Viburnum tinus; Witch Hazel (photo credit: Laura Ockel, Unsplash); honey bee on Winter Snow heather

February

Heathers (Erica carnea) – perfect for a rockery or small flower bed with acidic, ericaceous soil. Winter flowering specimens, include white ‘Winter Snow’ (Erica carnea f. alba ), or ‘Winter rubin (Erica carnea ‘Winter Rubin’) for a splattering of pink.

Winter Daphne  (Daphne odora) or Daphne bholua ‘Jacqueline Postill’   – a slow-growing medium-sized, evergreen shrub with clusters of pinkish and white flowers and an intoxicating scent in winter and early spring.

Witch Hazel (Hamamelis) –fragrant, strange-looking ribbon-like flowers hang off bare twigs in early winter. There are many cultivars with slightly different coloured flowers ranging from sulphur yellow to coppery red.

Winter Jasmine (Jasminum nudiflora) – what it lacks in fragrance, it makes up for with small, yellow flowers on bare stems from January to March.

March

Oregon Grape (Mahonia aquifolium) – an early spring-flowering Mahonia which is more compact and less prickly than the winter-flowering varieties but with similar bright yellow bee-friendly flowers.

Japanese quince (Chaenomeles japonica)  l- arge, bold, often bright reddish-orange flowers cover its bare, thorny stems for weeks before the leaves appear in May. Non-thorny varieties are available.

Bastard senna ‘Citrina’ or Scorpian Vetch (Coronilla valentina subsp. glauca ‘Citrina’) – pretty pea-like, yellow flowers appear in early spring and are often followed by a second flush in later summer. A native of Southern Europe and Northern Africa, it will benefit from the protection of a sunny, south-facing wall.

Camellias – but only those with single-headed flowers with well exposed pollen-laden stamens, unlike the many double-headed cultivars. They need acidic, ericaceous soil.

Japanese quince (Photo: Yoksel Zok, Unsplash); Camellia (Photo: Annie Spratt, Unsplash); Rhododendron (Photo :Padre Moovi, Unsplash)

April

Honey spurge, or Canary spurge (Euphorbia mellifera) – small, honey-scented, bonze tinted flowers are borne on an exotic looking, architectural dome-like structure.

Flowering currant (Ribes sanguineum) – clusters of pinkish/reddish tubular flowers are loved by long-tongued bumblebees and hairy-footed flower bees.

Burkwood viburnum (Viburnum × burkwoodii) – a later flowering evergreen viburnum with similar domed clusters of fragrant white flowers until May, that open from pink buds.

Darwin’s Barberry (Berberis darwinii) – an evergreen, with similar holly-like leaves to Mahonia,  but clusters of orange flowers which are a major source of nectar and pollen in early spring and again in the autumn.

Lilly of the Valley shrub (Pieris japonica) – its bell-shaped flowers are visited by long-tongued solitary bees, such as hairy-footed flower bees, and bumblebees. Requires acidic, ericaceous soil.

Rhododendron – its flowers contain low concentrations of poison for honeybees, but long and short-tongued bumblebees find the single-flowered varieties highly attractive for both nectar and pollen. Best in acidic soils. Compact varieties can be grown in pots filled with ericaceous compost.

May

Californian Lilac (Ceanothus) – a stunning evergreen small ‘tree’ smothered in clusters of electric blue flowers that buzz with bees all month in full sun.

Firethorn (Pyracantha) –the bunches of small white flowers on this spiny-branched shrub are visited by many solitary bee species, but it’s mostly grown for the profusion of showy, bright orange-red berries in autumn.

Japanese pittosporum (Pittosporum tobira) – profuse and intensely scented flowers open white and then turn yellow in April and May against the attractive large, glossy foliage of this drought-tolerant shrub.

Californian lilac (Photo: Charlotte Harrison, Unsplash); Fuchsia with bumblebee (Photo: David Clode, Unsplash); Beautyberry berries in autumn ( (Photo: Yamasa, Unsplash)

June

Cotoneasters are a great source of nectar and pollen during the ‘June gap’ – when there’s a dearth of bee food between spring flowers dying and summer perennials flowering.  Research at Cambridge Botanic Gardens found that the  clusters of small white or pink flowers of many Cotoneaster species can provide a succession of forage for short-tongued bumblebees and honeybees from May to August. Varieties include the low-growing red-berried C. horizontalis, which can be trained up walls, and  Franchet’s (C. Franchetii) which makes an evergreen pollution-tolerant hedge; and the graceful willow-leaved (C.  ‘Rothschildianus) which has yellow berries.

Senecio Sunshine (Brachyglottis ‘Sunshine’) – a compact, drought-tolerant, evergreen shrub from New Zealand that works well in coastal areas and has hairy, grey leaves and bright yellow, daisy-like flowers in June and July.

July

Beautyberry ‘Profusion (Callicarpa bodinieri var. giraldii ‘Profusion’) Prized for its clusters of violet, bead-like berries on bare branches in the autumn, which are much-loved by birds, and its striking foliage that changes colour during the seasons. This deciduous shrub also has small pink flowers in midsummer which attract the bees.

Daisy bush (Olearia × haastii) – an evergreen drought-tolerant shrub smothered in white, daisy-like flowers with big yellow centres in July and August. Its glaucous, glossy leaves make it suitable for coastal, windy gardens.

August

Hardy fuchsias – bushy, compact shrubs with a profusion of dainty two-tone pendent flowers that the RHS describe as dangling in pairs, “like mini ballerinas with tutus”, along the stems towards the tips.  They can last well into the autumn and bring a tropical touch to a garden if planted in a sheltered, sunny spot and watered.

Bluebeard or Blue Spiraea (Caryopteris × clandonensis) – clusters of slightly fluffy, blue flowers appear in August and September on long stems among pointed, aromatic, grey-green leaves. (Although I have to admit, I’ve not had much success with this drought-tolerant shrub.)

Bluebeard (Photo: Emily Simpson, Unsplash) Buddleia (Photo: Gavin Allanwood, Unsplash) Chaste Tree (Photo credit: Griffin Taylor, Unsplash)

September

Butterfly bush or buddleia (Buddleja davidii) – buy a small cultivar of this coloniser of railway sidings for bee and butterfly visitors from July to October. Dense spikes of honey-scented, brightly coloured flowers can be encouraged by regular deadheading.

Chaste Tree (Vitex agnus-castus) – cone-shaped clusters of violet-blue lavender-looking fragrant flowers appear from July to October – if planted in a sunny, sheltered garden – on this attractive, slender drought-resistant plant with finger-like leaves .

October

Japanese Aralia (Fatsia japonica) – an autumn-flowering tropical-looking, evergreen with huge, glossy, palmate leaves for shady corners. It produces showy panicles of spherical, creamy white flowers from September right through to November.

Oleaster or Silverberry (Elaeagnus × submacrophylla) – in autumn, very small, but well-scented, creamy-white flowers open until November on this shade, drought and wind-tolerant evergreen that can be grown as a hedge.

 Fastsia Japonica (Photo credit: The Blow Up, Unsplash); Strawberry tree with Buff-tailed bumblebee queen

November

Strawberry tree (Arbutus unedo) – an evergreen, Mediterranean shrubby tree, with bell-shaped white flowers late in the year which hang from its branches unusually at the same time as its jolly, round, red fruit dangle like baubles on a Christmas tree.

Sources: RHS, Graham Rice, Buzz About Bees.net, The Garden Buzz, Dave Goulson, Gardening for Bumblebees, Pollinating London Together, BBC Gardeners’ World magazine, Addicted to bees, Urban Bees plants for bees list, Crocus.co.uk

Thanks to Diana Weir for her suggestions and help compiling this list.

Winter reading recommendations

Useful Bee ID guides

Field Guide to the Bees of Great Britain and Ireland, by Stephen Falk & Richard Lewington, (Bloomsbury) – this is the go to reference book that any bee spotter should have on their book shelf. It has more information than you’ll ever need to know about all our 250+ bee species, but it’s easy to dip in and out of and to find the photo, description and map for one bee and the family it belongs. And there is always something new to learn.

Insectinside: life in the bushes of a small Peckham Park, by Penny Metal – I know I’m biased because Penny is a friend and provides all the fabulous Bees to See photos, but her fantastic huge, close up photos show a variety of wild bees you’ll most likely to come across in all their splendour. The narrative is fun too. And as well as helping my bee ID skills, her book has awakened my curiosity in other invertebrates that share the garden. Check out Penny’s Flickr page too.

Bumblebees An Introduction, by Bumblebee Conservation Trust – is a simple guide to identifying and helping bumblebees with good photos, diagrams and tips. I also like their Pocket Guide to 8 Common Bumblebees, which I stick in my back pocket when doing a Bee Walk. They have ones for rare bumblebees and cuckoo bumblebees too.

Gardening for bees

There are so many glossy, coffee table, lifestyle bee-friendly gardening books. The one I like best because it’s about bees and their relationship with plants is:

Gardening for Bumblebees: A practical guide to creating a paradise for pollinators by Dave Goulson (Penguin) – He covers the more common solitary bees, as well as bumblebees. I have found the section on long-tongued and short-tongued bees particularly useful.

Introduction to bees

Most layman’s bees books are about honeybees and beekeeping. It’s only recently that bumblebees and solitary bees have got a look in. For a simple overview, I’d suggest our gift book:

The Good Bee; A Celebration of Bees and How to Save Them Alison Benjamin & Brian McCallum (Michael O’Mara) – It’s beautifully illustrated, a handy size, and an easy to read introduction for someone who doesn’t know there are so many different types of bees.

or equally

Plant Trees Sow Seeds Save the Bees Simple Ways to be Bee-Friendly, by Nicola Bradbear (Penguin) – a delightful, easy to read informative little paperback with useful tips for getting to know ‘stripeys’ and how to help them.

Nature books

Bees have been my gateway to a better understanding and appreciation of nature and biodiversity. As a result, many of my favourites reads are about more than bees:

The Stubborn Light of Things: A Nature Diary by Melissa Harrison (Faber) – a beautifully written collection of her Times nature diaries that closely observe the natural world around her over a six year period living in London and moving to Suffolk. You can dip in and dip out and always find a gem such as this from 21 October 2017: “If you live in a city and miss nature, the answer doesn’t have to be to move out: it’s to tune in.”

Wilding: The Return of Nature to a British Farm by Isabella Tree (Picador) – an amazing 20 year account of what can be achieved if we work with nature, rather than against it. The return of nightingales, storks, bees, butterflies and dung beetles.

English Pastoral An Inheritance by James Rebanks (Allen Lane) – if there is one book you read this year, make it this one. Why? Because he takes you on his journey of discovery that the farming practices he and his father’s generation adopted are destroying the land. And the embrace of nature-friendly farming by this self-declared green sceptic shows what can, and must, be done and the role we can all play.

John Clare Selected Poems edited by Jonathan Bate (Faber) – I most admit I find most poetry difficult, but earlier this year, thanks to Professor Jeff Ollerton, I discovered John Clare’s Wild Bee poem and adored his descriptions of the different bees. So when I came across this collection of poetry I thought I’d give it a go. I’ve not read many yet, but if like me you’re a fan of russet hues you’ll love his ode To Autum:

…More sweet than summer in her loveliest hours, /Who in her blooming uniform of green/Delights with samely and continued joy/But give me autumn, where thy hand hath been/For there is wilderness, that can never cloy – /The russet hue of fields left bare and all/The tints of leaves and blossoms ere they fall…

Blossom-sequencing trees for bees

February: Pussy willow (credit: Roberto Sorin, Unsplash)

Thinking about planting a tree this winter for bees, or speaking to your council tree officer about planting more trees to feed bees? These are the best trees because they produce pollen, or nectar, or both, when little else is flowering.

Early-flowering trees

February: Hazel catkins (Credit: Yoksel, Unsplash); March: Cherry ‘Okame’; April: Crab Apple

  1. Pussy/goat willow (Salix caprea) – although its catkins are wind pollinated, the protein-rich pollen they contain are collected by buff-tailed bumblebees and honeybees on mild February days to feed new larvae.
  2. Hazel (Corylus avellana) – showy, yellow dangling male catkins brighten up any garden in February/March and, though wind pollinated, provide much-needed pollen for early flying bees.
  3. Cherry ‘Okame’ (Prunus incam Okame) – a profusion of pretty pink blossom earlier than any other cherry makes this a magnet for bees that are out in March.
  4. Crab apple (Malus sylvestris) – a reliable, small bee-friendly tree that I have successfully grown in pots and planters on rooftops. It has beautiful white blossom in April for bees, and small red apples in autumn for birds, or for us to make jelly or jam.
  5. Bees are well served by trees in May and June from the huge Horse Chestnut trees with their thousands of white flowers borne on candelabras, to smaller Hawthorns, Rowans and Judas trees. They are followed by a variety of Lime trees (also known as Linden trees or Tilia), Acacia and Tulip trees. So try to plant a tree that flowers from mid July onwards instead.

Late-flowering trees

July: Dwarf chestnut tree (Credit: Wendy Cutler, WikiCommons); September: Seven son flower tree; October: Strawberry tree.

  1. The Indian horse chestnut tree (Aesculus indica) is a beauty and doesn’t suffer from the leaf miner or fungus that turns our conker trees’ leaves brown by mid summer. And it flowers after the Lime trees when the choice of blossoming trees greatly diminishes. But it does grow to 50ft so is only suitable for large gardens. A smaller option is the equally stunning Dwarf horse chestnut (Aesculus parviflora) which I’ve seen growing in large planters up to 8ft.
  2. If you already have a Common privet tree (Ligustrum vulgare), shrub or hedge, let it flower in July. Although it doesn’t smell pleasant to us, the scent attracts the bees to its nectar and pollen. The same goes for Oleaster (Elaeagnus × submacrophylla) which is often used for hedging. It you let it flower in October/November it can provide welcome food for bumblebees fattening up for winter.
  3. By August, there’s a real dearth of flowers on our trees and many popular garden flowers like lavenders and alliums have bloomed, so bees are getting hungry. Chinese privet (Ligustrum lucidum) is a handsome, small evergreen tree that has large panicles of white flowers providing much-needed food for late summer foraging bees.
  4. Seven son flower tree (Heptacodium miconioides) was the star of RHS Chelsea 2021 because it was the only tree in flower in September. It is a member of the honeysuckle family, with its clusters of heavenly scented white flowers, and can be grown as a multi-stemmed shrub or small tree. I predict that it will become widely planted throughout the UK, which will be a blessing for bees. I am going to try to find space for one.
  5. Strawberry tree (Arbutus unedo) If you plant this spreading , shrubby evergreen that grows in the wild all over the Mediterranean, you will be able to bee spot into November.

Not only will these trees feed bees, they will also bear fruits that birds can eat later in the year, and provide places for insects, including some bees to live, even when the tree has died. So they greatly promote biodiversity . And of course like all trees, they store carbon, mitigate flooding and pollution and reduce the temperature in towns and cities.

See our full Trees for Bees guide here. A remember, right tree, right place. Don’t plant a huge tree in a small garden.

September surprises

You’d probably expect to see less bees flying as summer gives way to autumn, and it’s true that the leafcutters, wool carder bee and many mining bees have gone. But if you have late flowering blooms you may see plenty of bumblebee queens stocking up on nectar before searching for a cosy winter hideaway and common carder bee workers are still out in force. Wooden posts drilled with small holes, may be busy with large-headed resin bees plugging their nests with tiny pieces of grit and stone and gluing it together with tree resin. And if you’re near flowering ivy (yes, mature ivy is smothered in tiny white flowers later this month) don’t miss the Ivy mining bee. This short-lived solitary bee emerges just before the ivy flowers and disappears shortly after. And this month marks 20 years since the ivy bee was first recorded in the UK.

We decided to included honeybees in our guide this month for two reasons:

1. You’ll see lots on flowers in your garden because there aren’t many flowering trees in September, and it’s their last chance to collect nectar and turn it into their winter stores of honey

2. It’s easy to confuse ivy bees and honeybees when they are both on the ivy flowers. So carefully examine the photos above and ID notes below.

Tips for IDing September bumblebees:

  • Tree bumblebees (Bombus hypnorum) – if you’ve been bee spotting all summer, you should be quite adept at identifying tree bumblebees by now. But they can be confused with similar sized common carder bees as both have a gingery thorax. The tree bumblebee sometimes looks like it has a bald patch and it’s abdomen is blacker and it’s bottom (or tail) is always white. They usually have two generations each summer so the ones you see flying this month will be new queens, workers and males from the second 150-strong colony. The only difference in appearance between the queen, males and workers (known as the three castes) is their size. Queens are a larger 15mm, males 13mm and workers 11mm.
  • Common carder bees (Bombus pascuorum) seem even more common at this time of year. Queens that began producing worker bees in April are now producing new queens and males so they are flying too . The castes all have the same ginger pile on their thorax, but their fluffy bodies can vary in colour from light to dark brown. They are the smallest bumblebees flying in September.
  • Red-tailed bumblebees (Bombus lapidarius) – easily recognisable with their gorgeous red butt, but unfortunately this bee is a less frequent sight for many of us these days. In the south, queens can produce a second colony of up to 300 bees, so it’s this second generation there are now flying. The queen is one of our biggest bumblebees: measuring 17mm, she can look quite intimidating with her velvety black body and striking red tail. Workers are a smaller version of the queen(12mm), but males (12mm) have cute yellow facial hair and yellow bands on their bodies.
  • Buff-tailed bumblebees (Bombus terrestris) our most common bumblebee, has two generations in the summer and even a third which flies during the winter in the south of England. However at this time of year, I find them much less ubiquitous than common carder bees. This may be because only the huge mated queens (18mm) are flying stocking up on nectar and looking for a suitable nesting site to raise a new colony in the south, or further north, the queens are stocking up on nectar and looking for a suitable hole to overwinter.

How to ID September solitary bees:

  • Ivy mining bee (Colletes hederae) – one of the highlights of autumn is being able to spot an ivy mining bee. To the untrained eye, they can look deceptively like a honeybee, especially as they are both found on mass buzzing around nectar-rich ivy flowers in the south of England and Wales. However, look closely and you’ll see the ivy bee sports a quiff of orange hair on its thorax and its body has much more defined and shiny segmented bands in buff and brown alternate colours. Ivy bees are also a little smaller (10mm) than honeybees (14mm). Ivy bees are the last solitary bee to emerge in the UK. The males first, in late August, or early September, and females a couple of weeks later. They can gather nectar (and the females pollen) from a variety of late flowers before the ivy flowers, but the easiest way to see them is to inspect the tiny white ivy flowers. Ivy bees belongs to the Colletes family, which mine into the ground to make their nests – often next door to each other in very large numbers – and they line their nest with a cellophane-like waterproof and fungus-resistant substance, which is why Colletes are also called plasterer bees. If you have a south-facing slope with light soil you may see hundreds, even thousands, of these bees emerging from their individual nests. It is easy to forget that they are solitary bees. As you can see on this great video from the Hampshire & Isle of Wight Wildlife Trust. Fascinating fact – the ivy bee was only described as a separate species in 1993 and wasn’t discovered in the UK until 2001 in Dorset. Unlike the other newcomer, the tree bumblebee, ivy bees aren’t thought to have spread to the north of England. But if you see one beyond the Midlands, please report your sighting to BWARS (Bees, Wasps and Ants Recording Society).
  • Common yellow-faced bee (Hylaeus communis) – these small (5mm) predominately black bees with tiny yellow spots or a triangle on their face has been a familiar sight in gardens since mid summer (if you’ve been able to spot such a diminutive bee). The females have been known to nest in bee hotels/boxes if the hole dimension is small enough. They also plaster their nests and unlike other bees collect pollen in a special stomach, called a crop, and regurgitate it to make a semi-liquid mixed with pollen to feed the larvae. Fascinating fact: They have been observed blowing bubbles of nectar to evaporate the water. This is known as water homeostasis and it concentrates and thickens the nectar/pollen mixture making it tacky like honey. The bees eggs and larvae ‘stick’ to its surface, unlike many other solitary bee larvae which ‘sit’ on top of the more solid pollen mixture. Here is a video of the bubble blowing. (I’m yet to see any of this behaviour myself, so thanks to Nurturing Nature and Api:Cultural for the info and footage).
  • Large-headed resin bee (Heriades truncorum) – I have seen these industrious, small (5mm) solitary black bees with a strange wide head plugging their nests with tiny bits of grit in pre-existing holes in wood. It looks like they are making a mosiac from the grit which they stick together with resin they collect from trees. If you live in the south-east of England (where they are commonly found), and install wooden logs, or a post, drilled with holes a few milimetres wide, you may see them making mosiacs in your garden next summer. They have also been known to use bee hotels/boxes. If you live further north, take a look here at their fascinating behaviour. And with warmer summers across the UK, they could be coming to a green space near you especially where yellow ‘weeds’ such as ragwort, sow thistles and hawkweeds are left to grow.
  • Common furrow bee (Lasioglossum calceatum) – these small solitary bees with an elongated black shiny body have been flying since early spring. So there is no excuse for not recognising them (although I still have problems with ID). The ones you will be seeing now are males and females that were born in July and can fly until October. Fascinating fact: These burrowing bees can display primitively eusocial behaviour, which means the early flying females in warm climates are actually queen bees that in early summer produce workers. These worker bees will collect nectar and pollen for the new females and males that are born later in the summer.

How to help bees in September

  1. Plant flowers that bloom this month to provide important late sources of nectar and pollen. Sedum, Michaelmas daisy, dahlia, fushsia, Devil’s bit scabious, and wild marjoram are all good, and don’t forget Common sneezeweed (Helenium autumnale), the solitary bees favourite, according to Rosybee nursery’s fantastically helpful research . A particular fav in our garden is Helianthus ‘Lemon Queen’ a slug-proof sunflower, and of course, the Geranium Rozanne is still going strong! For the long-tongued bumblebees, black horehound, salvias and buddleia are still flowering, and hemp agrimony is good in damp soil.
  2. The best late forage for short-tongued honeybees and ivy bees without a doubt is ivy. But ivy only flowers when it is mature and that can take 11 years! So if you have any sprawling ivy that needs a trim, please don’t cut it back until after it’s flowered this month.
  3. If you only have a window box, Mexican fleabane (Erigeron karvinskianus), trailing nasturtium and bird’s-foot trefoil are still flowering. Add sedum and annuals such as cosmos and snap dragons. If you grow herbs in pots and window boxes, let the mint and oregano keep flowering.
  4. Gather seeds Store them in labelled paper bags in a cool, dry place for sowing or scattering next spring. Or, just scatter them around your garden now while the soil is still warm. Lightly rake the soil, scatter the seeds, cover them with fine soil and firm down.
  5. Leave parts of the garden undisturbed, as ground nesting bumblebee queens may be looking for a snug place to overwinter and don’t chop down old, dead stems that solitary bees may have laid eggs in.
  6. Ditch the weed killers and pesticides. 
  7. Take semi-ripe cuttings if you are patient and want to propagate heathers, ivy, Mahonia, Escallonia and flowering-currents. The cuttings should be ready to pot on next spring.
  8. Create a bank of sand mixed with some clay soil against a south facing wall for mining bees which like to burrow into sand. It only has to be about 400mm deep. Create steps in the sand as some bees like to nest vertically and others horizontally. The clay will help the bank to keeps its shape after the bees have tunnelled into it. If you’re lucky you may get ivy mining bees nesting in it this autumn next door to each other in large neighbourhoods.
  9. Drill holes in blocks of wood – 10mm, 8mm, 6mm and 4mm diameters and up to 30 cm deep (although some bees only need a depth of a few centimetres to nest in) – and screw them to a sturdy support. Drill holes in existing structures such as fence posts, or dead trees. Large-headed resin bees, scissor bees and yellow-faced bees may take up residence, but probably not until next year.
  10. Provide a source of water for thirsty bees. This can be a shallow bowl or saucer with stones or pebbles in that the bees can stand on while they are drinking. Bees can’t swim!

For information on IDing and helping bees earlier in the year see my Bees to See in August blog here,  Bees to See in July blog hereBees to See in June blog here,  Bees to See in May blog here and Bees to See in April blog hereBees to See in March blog here.