Grow cilantro

Is your space a good fit?

A bright window or balcony during mild weather, in sun to partial shade. Choose the season from local conditions rather than a nationwide sowing month.

Think twice if… Summer heat makes cilantro bolt quickly. Cilantro leaves and coriander seeds come from this same species; Vietnamese coriander is a different plant.

Check the light where the leaves sit

Count the hours a direct beam actually reaches this spot. Maryland’s indoor guidance is at least five hours at a sunny south- or west-facing window; Clemson’s general outdoor guidance is six hours for most herbs. Partial shade outdoors is not the same as indirect indoor light. Seasonal changes and obstructions matter.

Start with seed

Sow seed in the container where you intend to grow it. Clemson identifies cilantro as an annual suited to direct sowing. Use a labeled packet for depth and thinning spacing.

Gather the basics

A labeled culinary plant or seed packet, a pot with open drain holes, a saucer, commercial soilless potting mix, water, a label, and clean scissors. Match the internal pot diameter and usable depth to the rootball and cultivar. Leave room for the plant to grow and for you to reach it.

Plant it

Fill a draining container with potting mix, moisten, sow at packet depth, and label it. Keep the seed zone moist until emergence. Thin according to the packet rather than keeping every seedling.

For a balcony, use local frost and temperature guidance and gradually introduce an indoor-grown plant to outdoor conditions. Do not choose a planting month from another US region.

Care by observation

When does it need water?

Monitor moisture closely during germination and active leaf growth. Water the mix thoroughly when it is drying; do not use a fixed weekly schedule.

Shape it & watch for trouble

When the plant sends up a flower stalk in heat, repeated clipping is not a reliable way to restore a long leafy season. Record the change and consider a new sowing when local weather is suitable.

Stretched or leaning growth

Recheck actual sun and crowding before taking a larger harvest. A brighter-looking room is not necessarily enough light.

Wilt with damp mix

Check drain holes and standing water before adding more. Wilt alone cannot distinguish drought from root trouble.

Visible insects or damaged leaves

Inspect leaf undersides and separate affected pots when practical. Extension notes aphids and spider mites as possible herb pests; this is not a diagnosis. Ask local Extension for persistent problems.

The first small harvest

Take small amounts of young leafy growth while the plant has a healthy canopy, before flowering for leaf use. Leave foliage for continued growth.

Keep it growing; bring it to the kitchen

Add fresh leaves to salsa or other dishes near serving. Mature seeds are coriander, a separate harvest task. A flowering plant is not a failed leafy perennial: plan a later replacement sowing instead.