Leeks are reliable, hardy alliums that stand through winter.
When to Sow
- Sow Feb–Apr indoors or outdoors.
- Transplant Jun–Jul.
How to Grow
- Space 15cm apart in rows 30cm apart.
- Trim tops and roots before transplanting.
- Plant deeply to blanch stems.
Harvesting
- Harvest Oct–Mar as needed.
- Lift carefully to avoid damage.
Polytunnel Growing Tips
- Tunnels improve germination and protect young plants.
- Extended season possible with early sowings.
Quick Tips Recap
- Sow: Feb–Apr
- Spacing: 15cm
- Harvest: Oct–Mar
- Polytunnel advantage: Earlier sowings, improved germination
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