Throughout the years I’ve grown just about every variety of cilantro, slow-bolt is my all around favorite. I find that it has better cold tolerance than the other varieties I’ve grown, which is important in my Maine garden. Cilantro will self-sow if allowed to bloom and set seed. I find that I don’t have to seed much, but I have to be willing to let it grow wherever it decided to sprout (which is often in the middle of a row of something else I’ve planted).
This lovely herb can be harvested in leaf form when young, when the larger ferny leaves and flowers appear, or as seed (coriander). I like to have it in all three forms in the garden.
The blooms are much loved by not only tiny pollinators, but by my neighbor’s honeybees as well. It’s also very attractive to hoverflies and tachinid flies. I make sure to keep cilantro blooming all summer and fall in the garden just for the pollinators.
DAYS TO MATURITY
50-55 to leaf harvest; 90-105 to seed
DAYS TO GERMINATION:
Direct seed (recommended): Direct seed spring through late summer. Sow 1-2 seeds per inch, 1/4- 1/2″ deep in rows 12-18″ apart. There is no need to thin, as cilantro continues to grow well even when sown thickly. For coriander seed production, thin to stand 2-4″ apart. Successive sowings can be done every 2-3 weeks for continual harvest of leaves.
Sun. In most locations, bolting is likely in the heat of midsummer. Can be successfully grown in part shade in warm climates.
Does best in rich, well-drained soil.
Leaves may be harvested once the plants have become established and before flowering begins. Mature seeds are produced about 3 months after planting and are harvested when dry on the plant.