These flowering perennials are Deciduous: Cut back stems close to ground level from late February through to the end of March. Cut stems can be left on border as natural mulch or composted.
£5.50 16 in stock
Striking upright purplish stems with blue tinted foliage, from which come purple budded white flowers in summer. Sunny open position. Height 1.8m - 2.1m.
- Pot Size: 9 cm
- How many plants will I need?: 1 - 3 Plants Per Square Metre