Knautia

£6.49

Position: full sun
Soil: moderately-fertile, well-drained, preferably alkaline soil
Rate of growth: average Flowering period: July to September
Hardiness: fully hardy
Deep crimson, pincushion-like flowers appear on slender stems from July to September. This is a dwarf variety of the popular perennial that is more compact, but still has good-sized flowers that grow up to 5cm (2in) across and will bring long-lasting colour to a mixed or herbaceous border. It's best planted in well-drained, soil in full sun and supported with twiggy pea sticks. Although it prefers alkaline soil, it will thrive in neutral soil, too. It is a magnet for beees and butterflies. Garden care: Support with twiggy pea sticks or brushwood well before the flowers appear. Cut down to the ground in autumn. This plant is susceptible to powdery mildew. To help prevent this, mulch well with rotted manure or compost in autumn and keep it well watered.

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