RHS Chelsea Flower Show

Filters

Out of stock items ShowHide

Showing RHS Chelsea Flower Show How much sun : Sun Season of Interest : Summer Eventual Spread : 0.3m-0.6m Soil pH : Alkaline Special features : Plants that are native Sowing month outside : May Supplied As : Seeds Hardy : Yes clear all

Out of stock items ShowHide

Facing

Sowing month inside or protected

Attractive to wildlife

Soil moisture

Sort by

Show 20 items

Showing 1 to 1 of 1 item

Showing RHS Chelsea Flower Show How much sun : Sun Season of Interest : Summer Eventual Spread : 0.3m-0.6m Soil pH : Alkaline Special features : Plants that are native Sowing month outside : May Supplied As : Seeds Hardy : Yes 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