Bumblebees can't be bought. The way to get more in the garden is to create the right conditions, and here's how.
What does it look like?
Bumblebees are large, furry, and rounder-bodied than honeybees or solitary bees, which makes them the easiest bee group to recognise on sight, though telling one species from another is harder. Six species turn up most often in Scottish gardens: the common carder bee, fluffy brown-and-orange with darker bands, on the wing from early spring to November; the early bumblebee, small, with lemon-yellow bands and an orange tail, an important pollinator of soft fruit including raspberries and blackberries; the tree bumblebee, browny-orange on the thorax with a black abdomen and white tail, associated with open woodland-type gardens; the red-tailed bumblebee, the female a large black bee with a big red tail; the garden bumblebee, large and scruffy-looking with a long tongue and face, yellow bands and a white tail tip; and the buff-tailed bumblebee, the biggest of the group, with a buff-coloured queen's tail against the workers' white ones.
Life cycle
Only young mated queens survive winter, burrowing into soil to hibernate, unlike honeybees, which overwinter as a whole colony living off stored honey. Queens emerge on sunny days in spring, find a nest site, often an old mouse or rodent tunnel, and raise a first brood alone. Once those larvae mature into workers, they take over collecting nectar and pollen, freeing the queen to stay in the nest laying eggs. A nest reaches its peak strength, 50 to 400 workers, in summer. From mid to late summer the colony produces males and next year's queens; by late summer the old queen, workers and males have all died, leaving only the newly mated queens to overwinter and start the cycle again.
Not every bumblebee is what it looks like
About 4 of the roughly dozen bumblebee species seen in UK gardens are cuckoo bumblebees: parasites that don't collect pollen or raise their own workers, instead sneaking into an established nest of a specific host species, killing or subduing the queen, and having the host's own workers raise the cuckoo's young. Cuckoo bumblebees closely resemble the true bumblebee species they parasitise, an evolved likeness rather than coincidence. Several common true bumblebees resemble each other too, sometimes within a single species: a buff-tailed bumblebee queen has a buff-coloured tail, but her own workers have white tails, which puts them close enough to the white-tailed garden bumblebee that colour alone isn't a safe way to separate the two.
How to tell them apart: Precise species identification, including telling a cuckoo bumblebee from its host, genuinely needs a dedicated identification guide or app rather than a quick glance; colour and banding pattern are the starting point, but several common species overlap closely enough that they're routinely confused even by experienced observers.
How to encourage it
Fill a garden with nectar- and pollen-rich flowers through as much of the year as possible. Letting lawn 'weeds' like clover and dandelion flower by mowing less often, and providing a shallow water source, both add to what's on offer with very little extra effort.
Bumblebee queens nest in old mouse or rodent tunnels, long grass, compost heaps, or, for the tree bumblebee specifically, holes in trees and bird boxes. A nest found in an inconvenient spot, including a compost heap, is best left alone: colonies die out naturally by autumn, and disturbing one is more likely to provoke a sting than leaving it be.
Avoid pesticides wherever possible, and never spray a flower that's open, since that's exactly when a pollinator is likely to be on it.
Plant these to help:
- Crocus: the single most-recorded plant in February and March in RHS's own 2024 nationwide bumblebee survey, exactly when hungry newly-emerged queens need it most.
- Comfrey: its tubular flowers are shaped for long-tongued bees, but bumblebees also visit by 'nectar robbing': chewing a small hole in the side of the flower to reach the nectar without pollinating it in the usual way. Also one of the top-recorded plants in the same survey, in April and May.
- Chives: the top-recorded plant in May in the same survey, alongside comfrey.
The key window for a garden to be in flower for pollinators runs from March to October.
Why it matters
Most tree and soft fruit, including raspberries and blackberries, and vegetables including runner beans, broad beans, tomatoes, marrows and courgettes, need insect pollination to set fruit at all; the early bumblebee is specifically named as an important soft-fruit pollinator. Bumblebees are generalists, feeding from a wide range of flower shapes, which is thought to be why the common garden species are holding their numbers and range while more specialist bumblebees have declined severely. The main driver behind pollinator decline generally is loss of flower-rich habitat and nesting sites, worsened by climate change shifting where species can live and by insecticides, neonicotinoids in particular, reaching nectar and pollen through treated plants.
Why this matters in Scotland
The tree bumblebee, one of the six most common garden bumblebees, has spread from England and Wales and reached Southern Scotland.
Scotland's bumblebee picture isn't just about a common species arriving, though: the country is also the last stronghold of one of the UK's rarest bumblebees, the great yellow bumblebee, now largely restricted to flower-rich machair in Orkney, the Western Isles, and Caithness and Sutherland, its range having declined 80% in the last century. It's a genuine specialist, tied to that specific habitat and a narrow window of summer forage, not a garden visitor most Scottish gardeners will ever meet.
Myths about bumblebees
8 common claims about bumblebees, checked: 5 busted0 disputed0 untested3 hold up
“Bumblebees die after they sting, just like honeybees.”
A honeybee's stinger is barbed and stays lodged in skin, tearing loose from the bee's body and killing it. Bumblebees have smooth, unbarbed stingers that pull back out cleanly, so a female bumblebee can sting more than once without dying. Only queen and worker bumblebees carry a stinger; males have none.
What to do: Treat a bumblebee sting the same as a wasp sting, and don't assume the bee has died after stinging; it hasn't, and it can sting again if provoked further.
1 source
- Bumblebee Conservation TrustBumblebees have smooth stingers and survive stinging, unlike honeybees, and only female bumblebees, queens and workers, can sting.
“A bumblebee nest in the garden should be destroyed for safety.”
Bumblebee nests are best left alone and in place rather than removed or destroyed. They last only a few months, cause no structural damage, and the bees themselves pose minimal risk if left undisturbed. Where a nest is inconveniently placed, temporary netting, a barrier around the entrance, or moving play areas away from the site are suggested instead of removal.
What to do: Leave an active bumblebee nest where it is; it will naturally die out within two to six months, and keeping people or pets away from it is safer and simpler than trying to destroy it.
1 source
- Bumblebee Conservation TrustNests are best left alone since they don't last long, cause no structural damage, and pose minimal risk; temporary barriers or netting can manage access if needed.
“Bumblebees make honey, just like honeybees.”
Only honeybees produce and store honey, because their colonies persist through winter and need a food reserve to survive it. Bumblebee colonies don't overwinter as a whole; only new queens hibernate, while the rest of the nest dies off in autumn, so there's no need to convert nectar into a stored, preserved food. Bumblebees consume the nectar they collect fairly quickly rather than processing it into honey.
What to do: Don't expect honey from a bumblebee nest in the garden; there won't be any to find, and disturbing the nest to check would only stress the colony.
2 sources
- Bumblebee Conservation TrustOnly honeybees produce honey for winter storage; bumblebee nests don't survive winter so they have no need to make or store it.
- RHSHoneybees are the only insects that produce honey.
“Bumblebees are less effective pollinators than honeybees.”
A peer-reviewed comparison of wild bumblebees and introduced honeybees found bumblebees removed and deposited significantly more pollen per flower visit, moved faster between flowers, and visited far more flowers overall. Their larger body size and longer proboscis gave them a better mechanical fit with the flowers studied, transferring roughly 27,900 pollen grains per visit compared with about 17,700 for honeybees. Bumblebees also keep foraging at cooler temperatures than honeybees, continuing to work flowers when honeybees have become inactive.
Our read This particular study looked at one plant species, so it shouldn't be read as proof that bumblebees always outperform honeybees on every plant, but it does show the common assumption that honeybees are the more capable pollinator has no solid basis; for many garden plants, especially tomatoes and other buzz-pollinated crops, bumblebees do the more effective job.
What to do: Don't assume a garden with few or no honeybees is poorly pollinated; a healthy bumblebee population, especially around tomatoes, beans, and other buzz-pollinated crops, can do at least as good a job.
1 source
- peer-reviewed journal (PMC/NCBI)Wild bumblebees transferred significantly more pollen per visit than introduced honeybees on the plant species studied, aided by larger body size, longer proboscis, and more frequent visits.
“Bumblebee populations are declining mainly because of predators like birds and wasps eating them”
The Bumblebee Conservation Trust directly addresses this as one of its 'seven bumblebee myths': bumblebees and their natural predators have co-existed for thousands of years without driving populations down. The real drivers of decline are human-caused habitat loss and pesticide exposure, not predation.
What to do: If you want to help bumblebees, focus on what actually moves the needle: planting a range of pollen- and nectar-rich flowers through the season and avoiding pesticides, rather than worrying about natural predators in the garden.
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- Bumblebee Conservation TrustBumblebees and their predators have co-existed alongside one another for thousands of years. [The real threat is] human-caused habitat loss and pesticide exposure.
“Only female bumblebees can sting; males can't sting at all.”
Female bumblebees, meaning queens and workers, carry a stinger and will use it defensively if they feel threatened, for example by vibration from a lawnmower or disturbance close to the nest entrance. Male bumblebees have no stinger and are physically incapable of stinging under any circumstances.
What to do: A bumblebee landing on you or buzzing nearby is very unlikely to sting unless handled or trodden on, so there's no need to react defensively to every bee you see in the garden.
1 source
- Bumblebee Conservation TrustFemale bumblebees will usually only sting defensively if they feel threatened, while male bumblebees don't have a sting and can't harm people.
“If you find a tired bumblebee, you should feed it sugar water to help it.”
A sugar water mix, made from equal parts white sugar and water and offered as a drop or two on a spoon, can give a genuinely exhausted bumblebee a one-off energy boost. This is recommended only as a last resort, used when there are no bee-friendly flowers nearby and only after confirming the bee isn't simply resting; queen bumblebees in spring often rest on the ground for 30 to 45 minutes as normal behaviour, not because they're in trouble. Brown sugar and honey should be avoided, since brown sugar is harder to digest and honey can carry pathogens harmful to bumblebees.
Our read In practice this means most bumblebees seen sitting still in a garden don't need feeding at all; sugar water is a rescue measure for a genuine emergency, not a routine kindness to hand out to every bee that pauses on a path.
What to do: Only offer sugar water if the bee has been motionless for well over 45 minutes with no flowers nearby to feed from; otherwise, gently move it to a sheltered spot near flowers and leave it alone.
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- Bumblebee Conservation TrustSugar water made from equal parts white sugar and water can be offered as a last resort to a bumblebee that appears exhausted with no flowers nearby, but should never replace natural forage.
“Bumblebee populations are declining, and this matters for pollination in the garden.”
UK bumblebees have been in decline over the past century, with two species driven extinct and eight of the remaining 24 species now listed as conservation priority species because of large population losses. Even common species such as the red-tailed and white-tailed bumblebee show a gradual long-term decline. The main causes identified are loss of wildflower habitat, with around 97% of UK wildflower meadows lost in the last century, pesticide exposure, and increasingly disruptive weather patterns.
What to do: Growing a range of nectar and pollen-rich flowers from March through October and avoiding pesticides on flowering plants gives garden bumblebees a meaningful boost, since garden habitat has become a significant substitute for the wildflower meadows that have been lost.
In Scotland: The Great Yellow bumblebee, one of the UK's rarest species, now survives mainly in the far north and west of Scotland, including machair coastline and the Northern Isles, making gardens in those areas particularly relevant to its survival.
1 source
- Bumblebee Conservation TrustTwo UK bumblebee species have gone extinct and eight of the remaining 24 are conservation priority species, driven mainly by habitat loss, pesticides, and climate change, with the Great Yellow bumblebee now confined to the far north and west of Scotland.
Frequently asked questions
Can I buy bumblebees?
Not usefully: bumblebees released into a garden with nothing to hold them there simply leave. Creating the right habitat and food source is what actually keeps a population around; see "How to encourage it" above.
Is every bumblebee I see the same?
No, see "Not every bumblebee is what it looks like" above. Not every insect that looks similar is the same species, and telling them apart matters.
When will I actually see bumblebees in the garden?
It depends on the stage in their life cycle — see "Life cycle" above for when they're active and what to expect through the year.
Sources
7 sources, recorded with what each was used for
- RHS: Identification, life cycle, nest sites, sting safety and how to encourage bumblebees and other bees, on RHS's own dedicated bees-in-your-garden page.
- Wildlife Trusts: Species-level identification for six common UK bumblebees, including the tree bumblebee's spread into Southern Scotland.
- NatureScot: The March-to-October flowering window for Scottish pollinators, and general pollinator-encouragement resources.
- FAS Scotland: The great yellow bumblebee's habitat, life cycle, decline and Scotland-specific distribution, restricted to machair in Orkney, the Western Isles, and Caithness and Sutherland.
- RHS: Comfrey's tubular flowers suit long-tongued bees, and bumblebees sometimes 'nectar rob' it by chewing a hole in the side of the flower rather than entering it normally.
- RHS: Why pollinators matter: most tree and soft fruits, and vegetables including runner beans, broad beans, tomatoes, marrows and courgettes, need pollinating insects to set fruit. Generalist bumblebee species able to use a wide range of plants are thought to be maintaining their numbers; specialist species have declined more severely.
- RHS: RHS's own 2024 nationwide public survey of bumblebee flower visits: crocus most-recorded in February and March, comfrey and dandelion in April, comfrey and chives in May.