As I grow coriander for its leaves rather than for its seeds I grow this slow bolting variety. It is ready to pick in less than a month and a half and will under reasonable conditions take three or four months before it runs up to seed. It’s best to sow seed at six weekly intervals.
When to sow: Mid spring to late summer
Where to sow: Direct
Depth to sow: 5mm
Aspect: Full sun or as sunny a spot as possible.
Soil: Prepared, well drained, fertilised soil. Add lime if soil is too acid.
Spacing: Between plants: 5cm to 10cm; Between rows: 40cm
Directions: It’s best to sow coriander seed at six weekly intervals in 1cm deep drills straight into the garden. Thin to 5cm to 10cm apart. Raising it in seed trays and transplanting could well trigger premature bolting so is not advised.