When to plant sweet alyssum in Onkaparinga Hills
- Sow in trays: late Jan to late SepOnkaparinga Hills area, cool Mediterranean
- Move seedlings out: late Feb to late OctOnkaparinga Hills area, cool Mediterranean
- Sow in the ground: late Feb to early JulOnkaparinga Hills area, cool Mediterranean
- Plant seedlings: late Feb to late OctOnkaparinga Hills area, cool Mediterranean
- Sow in the ground: late Jul to late JulOnkaparinga Hills area, cool Mediterranean
- Sow in the ground: mid Aug to late OctOnkaparinga Hills area, cool Mediterranean
Worked out from 30 years of climate records for Onkaparinga Hills. Microclimates vary: frost hollows and hills run later.
A low carpet of tiny honey-scented flowers that feeds hoverflies and tiny parasitic wasps, two of the best aphid and caterpillar hunters. Edge your beds with it, or tuck it between lettuces and brassicas. Flowers most of the year in Adelaide.