How to Grow Lemongrass

Lemongrass is a potent lemon-citrus herb. Common as a seasoning in Asian cuisine, it also works great as a tea. Lemongrass tea is thought to be a home remedy for certain conditions and lemongrass essential oil has many homeopathic benefits as well. Here’s how to grow lemongrass.

Lemongrass comes in two main varieties: East Indian and West Indian. They have subtle differences but are grown under the same conditions.

Lemongrass is a perennial in growing zones 10 and warmer but can be grown as an annual in cooler climates, though it may be difficult to grow outside in zones 8 and colder. In general, you’ll plant lemongrass after the danger of frost has passed, in late spring for a late summer harvest. Lemongrass takes at least 100 days and sometimes up to 4-8 months to be ready for harvest.

Lemongrass prefers warm, moist and humid conditions. Grow lemongrass outdoors only in hardiness zones 9 and warmer. Grow lemongrass indoors year round in a very sunny window. If growing in containers, you’ll likely want at least 5 gallons of space to have a worthwhile lemongrass plant.

Lemongrass should be grown in full sun and should receive a minimum of 6 hours of direct sunlight per day.

Lemongrass should be planted in loamy, fertile soil. Avoid heavy clay soils. Fast drainage is key. Add lots of mature compost before planting. It will tolerate a wide range of soil pH, 5.0-8.0.

Lemongrass is best started from root cuttings from established stalks. The stalks should be firm and green. Put the bottom inch in a glass of water and set them in a sunny window. Roots should begin to sprout within two weeks. Plant in soil once the roots are 1 – 2 inches long, usually after about 4 weeks.

Set out transplants 3 feet apart and keep in mind they can grow 6 feet tall, though you can always trim them shorter if need. Plant into compost enriched soil. Wait until after the last frost before transplanting.

You can also purchase nursery starts from a reputable source and transplant into your garden or growing pots.

Water frequently. It’s very difficult to overwater a lemongrass plant (it is accustomed to constant moisture) but it will not tolerate dried out roots. No need to keep the soil muddy, but definitely keep it moist. In dry areas, mist constantly with a spray bottle.

Lemongrass needs lots of nitrogen in order to thrive. Use a nitrogen-rich fertilizer every few weeks but be careful if you are planting lemongrass amongst other plants, as many do not do well with too much nitrogen.

Begin harvesting lemongrass once it has reached at least 1 foot tall. Harvest entire stalks by slicing them off at soil level, below the swollen ends. Harvest from the outside of the plant and be sure the stalks are at least ½ inch thick. Do not break them off by hand. You may need to peel the outer layer of the stalks before use if they are too firm.

Try planting lemongrass along walkways. The pleasing aroma of lemongrass will add a nice touch to your backyard.

The moisture and humidity of a bathroom can work great for indoor lemongrass, provide they will receive enough light.

If you have tips on how to grow lemongrass, let us know in the comments section below.

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