Catsear
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 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
- How to make a garden genuinely useful to beesMost bee-friendly advice covers flowers in June, which is the one thing bees are least short of. The gaps are at the ends of the year — and half the problem is not flowers at all.
- The best flowers for beesHerbaceous flowers rather than trees and shrubs, chosen for output and length of season. Most of them are things you can grow in a border or a container.
- Making a wildflower area for beesA meadow is made by reducing fertility and weakening grass, not by scattering seed on a lawn. The single most useful plant in the process is a parasite.
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?