RHS Chelsea Flower Show

Filters

Out of stock items ShowHide

Showing RHS Chelsea Flower Show How much sun : Sun Soil pH : Don't know Attractive to wildlife : Attractive to bees Ground Cover : No Sowing month inside or protected : March Hardy : Yes Soil moisture : Dry/Sandy clear all

Out of stock items ShowHide

Facing

Sowing month outside

Supplied As

Sort by

Show 50 items

Showing 1 to 1 of 1 item

Showing RHS Chelsea Flower Show How much sun : Sun Soil pH : Don't know Attractive to wildlife : Attractive to bees Ground Cover : No Sowing month inside or protected : March Hardy : Yes Soil moisture : Dry/Sandy clear all

View info Centaurea Nigra | Black Knapweed Or Common Knapweed

From £2.99

approx 20 seeds

9cm pot

3 × 9cm pots

6 × 9cm pots

Get the latest news, offers and advice.

item added to your basket item removed from your wheelbarrow
View your basket