Verbena bonariensis

Verbena is great at attracting butterflies to your garden in the summer

Verbena bonariensis
Sow seeds in spring

Verbena bonariensis

Common Name

Verbena has beautiful, bright purple flowers and can grow to be 150cm tall.

Growing Tips

Growing conditions

For the final planting position, these plants like to be in full sun in well drained soil.

When to grow


What you need

  • Packet of Verbena bonariensis seeds
  • Seed tray
  • Seed compost
  • Plant label
  • Clear polythene bag
  • Vermiculite
  • Gardening gloves

How to grow

  1. Fill a seed tray with damp compost and sow the seeds thinly on the surface of the soil. Cover with a thin layer of vermiculite.
  2. Seal the tray inside a clear, polythene bag and place on a warm, sunny windowsill. The seeds need to be at a temperature of between 24–27C in order to germinate; this may take two to three weeks.
  3. When the seeds are large enough to handle, transplant each one into 7.5cm pots.
  4. Gradually harden off the plants and plant them outside when all risk of frosts have passed. As the plants grow tall, make sure you space them around 50cm apart when planting out.

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.