RHS Chelsea Flower Show

Filters

Out of stock items ShowHide

Showing RHS Chelsea Flower Show How much sun : Sun Facing : South Sowing month outside : May Pot Size : 0 - 9cm Pot Supplied As : Potted Flower Colour : Purple Soil pH : Alkaline Soil moisture : Normal clear all

Out of stock items ShowHide

Sowing month inside or protected

Attractive to wildlife

Sort by

Show 50 items

Showing 1 to 1 of 1 item

Showing RHS Chelsea Flower Show How much sun : Sun Facing : South Sowing month outside : May Pot Size : 0 - 9cm Pot Supplied As : Potted Flower Colour : Purple Soil pH : Alkaline Soil moisture : Normal clear all

20% off

View info Centaurea Nigra | Black Knapweed Or Common Knapweed

From £2.39

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