Garden Scheme
Cymbopogon citratus
Lemongrass is a tall, tropical clumping herb that brings a strong vertical presence to an edible bed. Reaching about 4 feet tall and 3 feet wide, it works best as a substantial single clump rather than a small filler plant. Its citrus-scented stalks are ready for harvest from midsummer into early fall, giving a planting bed both structure and a useful seasonal crop.
Space Lemongrass 3 ft apart, measured center to center (90 cm).
The mature spread is about 3 ft (90 cm), so neighboring plants just meet at maturity without crowding.
Treat 3 ft as a planning baseline — cultivar and local growing conditions shift the final footprint.
Place lemongrass toward the back or outer edge of a sunny herb or vegetable bed, where its height will not shade shorter plants. It can also mark a broad path, fence line, or bed corner, provided there is room to reach the base for harvest.
Space plants 3 feet apart, center to center. That interval matches the plant’s roughly 3-foot mature width, allowing each clump to hold a distinct outline rather than crowding its neighbors. Leave a workable edge beside the planting for cutting stalks at ground level, especially when using lemongrass as a border along a path or the front of a wide bed.
Give lemongrass full sun and regular water through the growing season. Use a bed or container with good drainage while keeping the root zone evenly moist; avoid sites that dry rapidly between waterings. A sunny, sheltered position helps the foliage form a dense clump and keeps the planting visually tidy in a frequently used part of the garden.[1][2]
Lemongrass is perennial in USDA Zones 9 through 11. Where winter frost is expected, treat the outdoor planting as a warm-season feature or reserve space for a container that can move under bright protection before freezing weather. Plan harvest access from midsummer to early fall, before the bed shifts into its cool-season layout.[2][3]