Catsear

Hypochaeris radicataAsteraceaeHerbaceous perennial

One of the yellow composites routinely mown out of lawns as a weed, and the pollen source that several specialist bees cannot do without. Panurgus shaggy bees provision their cells with yellow composite pollen exclusively, and catsear is among the most abundant and reliable sources of it through high summer.

Value to bees

Nectar
Moderate
Pollen
High
As a honey crop
Not a honey source
Which bees, and why
The essential plant group for Panurgus, which provisions with yellow composite pollen and nothing else, and males of which sleep inside the closed flower heads overnight. Sweat bees and small mining bees work it heavily.

An open composite head with shallow florets, accessible to short-tongued bees of every size.

Worth knowing
A generous and long-running pollen source through the summer months, and moderate for nectar.

Flowering

In flower
June to September (northern hemisphere)

Growing it

Conditions
Full sun on poor, dry, well-drained ground. It thrives in thin lawns, on banks and in gravel, and needs no help of any kind.
Size
20-60 cm tall in flower.
Native range
Europe and North Africa, and naturalised across much of the temperate world.
Suits
Meadow or wildflower area, Small gardens
  • It arrives on its own. The useful action is not planting it but leaving it.
  • Raise the mower height and cut less often, and it will flower through summer in an ordinary lawn.
  • Distinguish it from dandelion by the branched solid stem and the hairy leaves.

What it looks like

A flat rosette of hairy lobed leaves, from which rise wiry branched stems carrying bright yellow dandelion-like flower heads. The branched, leafless, solid stem separates it from dandelion, whose stems are single and hollow.

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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