Cilantro / Coriander

Coriandrum sativum

description

Cilantro is a quick-growing herb providing edible leaves, stems, flowers, and seeds.

benefits

Edible
Suitable for containers

How to care for Cilantro

sunlight

Cilantro grows in open, sunny places, so give it the brightest spot you have. More light keeps plants compact and productive, though intense heat can make them bolt quickly.

Full sun

Aim for about 6 hours of direct sun daily. A south- or west-facing window works well indoors, or use a grow light for 12-14 hours a day. In very hot climates, morning sun with afternoon shade helps slow bolting.

If plants stretch, lean hard toward the window, or make sparse leaves, move them closer to the light or add a grow light.

watering

Keep cilantro evenly moist, never soggy. Its shallow roots dry quickly, especially in a sunny pot, and drought can trigger early flowering.

Spring and summer

Check every day and water about every 2-4 days when the top 1 inch of soil feels dry. Water thoroughly until a little runs from the drainage hole, then discard excess water.

Cooler or lower-light months

Growth slows, so watering may drop to about every 5-10 days. Check the same top layer first and do not let the whole root ball become dust-dry.

Lift the pot after watering and again when it is ready for water. A noticeably lighter pot is a useful check alongside dry surface soil.

Use the intervals as a starting point. Bright light, warmth, small terracotta pots, and a fast-draining mix dry out faster, while cool rooms, low light, large pots, and dense soil stay wet longer.

Do not leave cilantro standing in water. Constantly wet soil can rot its roots and cause limp, yellowing leaves.

humidity

Humidity

40-60%

Cilantro is a cool-season herb from regions with relatively open air, so it is comfortable in average household humidity. Around 40-60% is ideal, but it usually tolerates about 30-60% with regular watering.

Dry, crisp leaf edges and limp growth can signal air that is too dry, especially near heating or air-conditioning vents.

If humidity stays below 30%, move the pot away from direct drafts and use a small humidifier nearby. Keep good airflow around the leaves, since constantly damp, crowded foliage can develop fungal problems.

temperature

Best growth

10-21°C (50-70°F)

Protect from hard frost

Below -2°C (28°F)

Native to the cool, seasonal climates of western Asia and the Mediterranean, cilantro grows best in mild conditions. Heat above about 24°C (75°F) encourages it to flower and set seed, so give it a cooler, bright spot for a longer leaf harvest.

Move pots away from hot windows and radiators when temperatures reach 24°C (75°F) or higher, and sow a fresh batch if plants begin sending up tall flower stems.

nutrition

March - June and September - November

Feed cilantro every 3-4 weeks while it is making fresh leaves with a balanced liquid herb fertilizer at about half strength. Do not feed seedlings, and stop once plants bolt or growth slows in heat. Outside active growth, feeding is rarely needed.

Nitrogen

Nitrogen supports the leafy growth you harvest. A gentle, balanced feed provides enough without pushing soft growth or reducing flavor.

Apply fertilizer to already-moist soil, then water lightly to spread it through the root zone.

soil

Loose, fertile soil that holds some moisture

Cilantro grows quickly in a crumbly, well-draining mix that stays evenly damp without becoming soggy. Blend potting soil with compost and a little perlite or coarse sand for nutrients, airflow, and reliable drainage.

pH 6,2 - 6,8

This is slightly acidic to near-neutral, a range that helps cilantro take up nutrients well. Most good-quality vegetable or all-purpose potting mixes fall close to it, so major adjustment is rarely needed.

Use a pot at least 20 cm deep so cilantro's taproot can develop without restriction.