RHS Chelsea Flower Show

Filters

Out of stock items ShowHide

Showing RHS Chelsea Flower Show Location : Outdoor Light : For Direct Sunlight Sowing month outside : September Attractive to wildlife : Attractive to bees Soil moisture : Dry/Sandy clear all

Out of stock items ShowHide

Facing

Soil pH

Sowing month inside or protected

Supplied As

Sort by availability

Show 20 items

Showing 1 to 1 of 1 item

Showing RHS Chelsea Flower Show Location : Outdoor Light : For Direct Sunlight Sowing month outside : September Attractive to wildlife : Attractive to bees Soil moisture : Dry/Sandy 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