Rowan
A slender upland tree that carries flat creamy corymbs of small flowers in May and scarlet berries from August, and one of the most useful small trees a northern garden can hold. Its flowers are completely open and accessible, which makes it forage for the short-tongued bees, hoverflies and beetles that deeper flowers exclude.
Value to bees
- Nectar
- Moderate
- Pollen
- High
- As a honey crop
- Feeds the colony but rarely yields a surplus
- Which bees, and why
- Worked by bees, hoverflies and a large number of beetles and flies. The flat corymb of tiny open flowers is a landing platform, which is why the visitor list runs so far beyond bees.
Fully open flowers with exposed nectar — accessible to essentially every flower visitor.
- Worth knowing
- Good pollen and moderate nectar, delivered in a completely accessible form. Its wider wildlife value — berries for thrushes and winter migrants — is at least as significant.
Flowering
- In flower
- May to June (northern hemisphere)
Two to three weeks, just after the hawthorn and overlapping with it in most seasons.
- When nectar flows
- Moderate nectar and good pollen, with the characteristic strong slightly unpleasant scent of the Rosaceae corymb flowers — an insect-attraction strategy rather than an accident.
- Year-to-year variation
- Reliable. Not a honey crop.
Growing it
- Conditions
- Sun to light shade, acid to neutral soil, and it tolerates cold, wind and altitude better than almost any other broadleaf.
- Size
- 8-15 m.
- Native range
- Europe and western Asia, extending far north and to high altitude.
- Suits
- Small gardens, Large gardens, Hedgerow, Meadow or wildflower area
- One of the best small garden trees in northern climates — narrow, hardy, and useful in spring and autumn both.
- Leave the berries. Fieldfares and redwings arriving from Scandinavia strip a rowan in days.
- It is short-lived by tree standards, often around eighty years, which is worth knowing when planting.
What it looks like
An upright tree with smooth grey bark, pinnate leaves of many toothed leaflets, dense flat clusters of small cream flowers, and heavy bunches of orange-red berries.
Sources
- Field Guide to the Bees of Great Britain and Ireland — Bloomsbury (2015) · Field guide
- HoneyHQ editorial synthesis — HEKNO Ltd · HoneyHQ synthesis
How sources are selected and weighted is set out in the sources and evidence policy.
Guides covering this plant
Tools for planning planting
- Flowering calendar
What should I plant so that something is always in flower for bees?
- Bee-friendly garden planner
What should I plant in the space I actually have?
- Plant recommendation tool
Which plant fills this specific gap?