RHS Chelsea Flower Show

Filters

Out of stock items ShowHide

Showing RHS Chelsea Flower Show Special conditions : Dry sun How much sun : Sun Facing : South Deciduous Or Evergreen : Deciduous Ground Cover : No Season of Interest : Summer Sowing month inside or protected : March Attractive to wildlife : Attractive to bees clear all

Out of stock items ShowHide

Soil pH

Sowing month outside

Supplied As

Soil moisture

Sort by

Show 20 items

Showing 1 to 1 of 1 item

Showing RHS Chelsea Flower Show Special conditions : Dry sun How much sun : Sun Facing : South Deciduous Or Evergreen : Deciduous Ground Cover : No Season of Interest : Summer Sowing month inside or protected : March Attractive to wildlife : Attractive to bees 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