Elder

Sambucus nigraAdoxaceaeShrub

A hedgerow shrub whose flat creamy flower heads scent every English June, and a plant with a complicated relationship to bees. Elder produces abundant pollen and very little nectar, so it is worked hard for protein and barely at all for sugar — which is a useful corrective to the assumption that a heavily scented flower must be a nectar source.

Caution

Raw berries, leaves, bark and roots contain cyanogenic glycosides and are toxic. Cooked berries and the flowers are safe.

Value to bees

Nectar
Low
Pollen
High
As a honey crop
Not a honey source
Which bees, and why
Worked for pollen by honey bees and small solitary bees, and visited heavily by hoverflies and beetles. Elder also hosts enormous aphid populations, and the honeydew they produce is collected by bees — which is a second and quite separate contribution.

Tiny fully open flowers on a flat platform, accessible to every insect. There is simply very little nectar in them.

Worth knowing
A good pollen source with almost nothing to offer in nectar, and the clearest hedgerow example of why the two are rated separately.

Flowering

In flower
May to July (northern hemisphere)

Four to six weeks in early summer, at the point when spring blossom has finished.

When nectar flows
Very little nectar. Elder is pollinated substantially by flies and small beetles attracted by the scent, and its offer to insects is pollen rather than sugar.
Year-to-year variation
Pollen is reliable every year. It is not a nectar crop and never will be.

Growing it

Conditions
Sun or part shade, any soil, and it thrives on nitrogen-rich disturbed ground. Effectively unkillable.
Size
3-8 m.
Native range
Europe, North Africa and western Asia.
Suits
Hedgerow, Large gardens, Small gardens
  • Cut hard in winter to keep it in bounds; it regenerates from almost nothing.
  • The hollow pithy stems, cut and left standing, are excellent nesting habitat for small carpenter bees and other stem-nesting species.
  • Ornamental dark-leaved cultivars flower well and are considerably better behaved than the species in a small garden.

What it looks like

A fast-growing shrub with corky bark and pinnate leaves, carrying large flat-topped creamy-white flower heads with a heavy sweet scent, followed by drooping bunches of black berries.

Sources

  • Field Guide to the Bees of Great Britain and IrelandBloomsbury (2015) · Field guide
  • HoneyHQ editorial synthesisHEKNO 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

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