Best time to plant borage in Australia
Borago officinalis
Also called starflower
An annual herb with hairy leaves and star-shaped blue flowers that bees love. The flowers are edible, and it often self-seeds.
On a shared plot: can spread
Self-seeds freely. Pull seedlings that come up where you don't want them, and keep it out of neighbouring plots.
When to sow
| Zone | Months | How well checked |
|---|---|---|
| Cool | Sep to Jan | Not yet checked against a local guide |
| Temperate | Aug to Feb | Not yet checked against a local guide |
| Subtropical | Feb to Nov | Not yet checked against a local guide |
| Tropical | Apr to Sep | Not yet checked against a local guide |
| Arid | Aug to Jan | Not yet checked against a local guide |
Your local conditions can shift any months shown here, so treat them as a guide.
Growing details
- How to start
- Sow directly in the bed
- Sowing depth
- 10mm
- Plant spacing
- 45cm
- Row spacing
- 30cm
- Height
- 100cm
- Germination
- 5-10 days at 20-22°C
- Time to harvest
- 80-90 days
- Frost
- Hardy, takes a light frost
- Sun
- Part sun
- Life cycle
- annual
These are typical figures, and varieties differ. Your seed packet takes priority.