When to plant Echinacea in Perth

Sow seeds in trays or modules around 18th March - 1st April, using a free-draining seed compost. Keep them at 18–21 °C and only cover the seed lightly, as it needs some light to germinate.

Move seedlings on when the first true leaves appear, from 8th April. Handle them by the leaves, not the stems, and pot them on into individual small pots.

Acclimatise young plants gradually from 25th April - 9th May before planting out. Put them outside in a sheltered spot for a few hours at first, then extend the time each day over about 10 days.

Plant in a sunny, free-draining spot from 9th May at 45 cm apart. Water in thoroughly straight after planting and keep an eye on slugs around fresh growth.

Keep plants evenly moist through 9th May - 11th July while roots settle. Water at the base in dry spells, but do not leave the soil soggy.

Remove faded flowers from 8th July - 9th October to keep the display going for longer. Cut stems back to a strong pair of leaves and leave a few heads later on if you want seed for birds.

Cut back old stems during 25th September - 8th November. If you left seed heads for birds, leave those stems standing until late winter, then remove them. Trim the rest down to a little crown of growth at soil level, taking care not to damage new shoots.