PlantSowGrow
When to sow, plant and harvest
JanFebMarAprMayJunJulAugSepOctNovDec
Sow outdoors
Harvest
Timed for a typical UK garden (last frost mid-April). The app uses your own town's frost dates.
Growing Borage: what it needs
- Light
- Full sun · 6+ hours a day
- Watering
- Keep evenly moist; water pots daily in hot weather
- Soil
- Fertile, well-drained soil
- Spacing
- 45 cm
- Height
- 60 cm
- In pots
- Grows well in containers
- Feeding
- A liquid feed every two weeks for pot-grown plants
- Harvest
- About 55 days from sowing
- Hardiness
- USDA zones 4–10
- Difficulty
- Easy
Step by step
- Early April – mid June · 2 weeks before the last spring frost
Sow Seeds Outdoors
Sow thinly in shallow drills where they are to grow.
- 7–14 days after “Sow Seeds Outdoors” · Early April – mid April
Check Germination
Seedlings should appear in 7–14 days. Keep the compost moist. If sown outdoors, thin to 45 cm apart.
- 41–62 days after “Check Germination” · Mid May – early June
Start Harvesting
Pick flowers as they open; young leaves can be used like cucumber. Take a photo for the journal.
- Mid October – early November · around the first autumn frost
End of Season
When plants run to seed or the frost gets them, pull them up for compost — leave a few to self-seed if you like.
