Growing Lime Leaf (Citrus hystrix) in Containers

Growing Lime Leaf (Citrus hystrix) – Kaffir Lime

The leaves of Citrus hystrix are best used fresh but can be frozen in resealable bags. Use whole leaves in sauces, stews, and marinades, removing before serving. The rind (zest) carries the same flavor. Common in Indonesian, Malaysian, Vietnamese, and Thai cuisines. Also known as Kaffir Lime.

Indoor/Outdoor Culture

In most of the U.S., grow indoors during winter. The rootstock keeps plants manageable (4–5 ft in containers). Summer outdoors on a patio; winter in a greenhouse, enclosed porch, or near a sunny south-facing window. Move outdoors in late spring after weather settles.

Gardeners in Zone 10+ can grow outdoors. Acclimate over a week: place in sheltered, lightly shaded spot, gradually increasing sun and wind exposure. Plant in full sun (6+ hours) protected from drying winds. In ground, plants reach ~8 ft tall.

Watering and Mulching

Whether in ground or container, citrus need steady moisture. Water when soil is dry 1 inch deep. Don't let dry out completely, or leaves and fruit may drop. If wind causes excessive drying, move to a sheltered location. Mulch with bark chips or gravel (keep away from trunk) to conserve moisture.

Fertilizing

Citrus are heavy feeders. Feed lightly year-round with a 3-1-1 N-P-K fertilizer plus micronutrients (zinc, iron, manganese). Miracid (30-10-10) works well. Leaf yellowing indicates insufficient fertilizer or poor drainage.

Pruning

Prune any time except winter. Pinch growing tips and cut back leggy branches to fill out spindly trees. Remove suckers (shoots below graft or from soil) promptly.