How to grow
Cilantro bolts quickly, so for a continuous supply of fresh leaves, successively sow a new patch every 2-3 weeks. To grow cilantro for the leafy part of the plant, choose varieties that are slow to bolt.
- Type: Annual, warm season.
- Light: Full sun to light shade.
- Soil: Well drained.
- Water: Needs a regular watering schedule to minimize bolting.
- Size: 18–24" high x 10-14" wide.
When to plant/propagate
- From seed: Direct seed from March to May, and August to October.
- Transplants: Plant seedlings from March to May, and August to October.
- Harvest frequently in order to encourage fresh, tender growth.
- Choose bright, evenly colored green leaves. Pinch off any flowers that develop.
- For coriander seeds, allow flowers to develop and collect seeds when they turn brown, and dry them to use as a spice.
- Many beneficial insects are attracted to cilantro flowers, so consider allowing some plants to flower.
- Cilantro can be grown as an indoor plant with 6 hours of bright light from a sunny window, or 12-16 hours of supplemental light provided by cool white fluorescent or LED lamps.
Common pests & diseases
Cilantro/coriander is relatively pest free.
- Coriander (Cilantro), UC Master Gardeners of Sonoma County
- "What is Coriander/Cilantro?", UC Master Gardeners of Solano County
Recommended Varieties for Santa Clara County*
- Slow Bolt
* Many other varieties may also do well here in Santa Clara County. This list is based on UC Master Gardener trials, taste tests, and feedback from local growers.