• Eventual height: 0.9m
  • Eventual spread: 0.75m

Lythrum salicaria

purple loosestrife

Perfect for pollinators
approx 250 seeds £2.99
Delivery options
  • Seed Packets (only) £2.95
  • Named Day £10.95

This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.

  • Position: Full sun or partial shade
  • Soil: Reliably moist, fertile soil
  • Depth of water: 0-5cm
  • Rate of growth: Average to fast
  • Flowering period: June to August
  • Hardiness: Fully hardy

A colourful plant for watersides, pond banks and woodland borders where the soil remains slightly moist, this clump forming perennial produces tall spikes of reddish-purple star shaped summer flowers. A relatively fast-grower, the flowers are also rich in nectar, so are popular with the pollinators.

  • Garden care:
    Plant out in reliably moist soil, or pot up into a pond basket and place at the margins of a pond. Apply a generous mulch of well-rotted compost around the base of the plant in early spring. Cut back the faded flowerheads in late summer and autumn.

  • Sowing instructions:
    Surface-sow directly onto trays filled with good seed compost in March or April, and maintain temperatures around 20C. When seedlings are large enough to handle, pot them up individually and grow them on. Gradually harden off before planting outside after risk of frost. Autumn-sown seedlings (August to October) should be overwintered in a coldframe before planting out the following spring.

  • Sow: March to April or August to October
    • CAUTION toxic if eaten/skin & eye irritant
    Goes well with...