Seed
Seedling
Flowering Plant

Lesser Knapweed

Wild Flower

(Centaurea nigra)

Lesser knapweed is also known as common black knapweed. It is a competitive wild flower found throughout the UK and parts of western Europe, in old meadows and roadsides. It may be known as 'hardheads'.

Uses

Persistence

A perennial species, which will persist better if allowed to set seed.

Strengths

It is a fairly reliable species when sown as part of a meadow mixture, although on favourable ground, without mangagment it can take over.

Ideal Sowing Time

Sow in autumn or spring.

Distinguishing characteristics

Seed

Seed
This is an oblong shaped seed, with two flat sides. It has a stripey pale green to gold colour. It has a reasonably smooth surface and is 3mm in length.

Seedling

Seedling
The lesser knapweed seedling has a pair of oblong cotyledons, which are slightly longer than they are wide. The first true leaves are longer and narrower, with the beginnings of widely toothed edges.

Flowering Plant

Flowering Plant
This is a dark green, stout and hairy plant. The lower leaves are lanceloate in shape and usually undivided. The upper leaves can become more divided, with pinnate lobes. The flower head is thistle like and maroon to purple in colour.

Additional Info

Flowers June-September. This species reaches a height between 15 - 60cms.

You can find Lesser Knapweed in the following mixtures