RHS Chelsea Flower Show

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Showing RHS Chelsea Flower Show How much sun : Sun Deciduous Or Evergreen : Deciduous Sowing month outside : September Attractive to wildlife : Attractive to wildlife Soil pH : Neutral Sowing month inside or protected : April Soil moisture : Normal clear all

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Showing RHS Chelsea Flower Show How much sun : Sun Deciduous Or Evergreen : Deciduous Sowing month outside : September Attractive to wildlife : Attractive to wildlife Soil pH : Neutral Sowing month inside or protected : April Soil moisture : Normal clear all

20% off

View info Centaurea Nigra | Black Knapweed Or Common Knapweed

From £2.99

approx 20 seeds

9cm pot

3 × 9cm pots

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