Lemongrass Repotting: How To Repot Lemongrass Herbs
Lemongrass can be treated as an annual, but it can also be grown very successfully in pots that are brought indoors for the colder months. The one problem with growing lemongrass in containers, however, is that it spreads quickly and will have to be divided and repotted frequently. Keep reading to learn more about how to repot lemongrass.
Repotting Lemongrass
Lemongrass is a great plant to have on hand if you like to cook Asian cuisine. The plant is hardy in USDA zones 10 and 11. In those zones, it can be grown in the garden, but, in colder climates, it won’t survive the winter and should be grown in a container. Potted lemongrass plants require repotting at some point. The best time to repot a lemongrass plant is in the fall. By this time, the plant will have finished growing for the year, and it will be time to move your pot indoors before the temperatures drop below 40 degrees F. (4 C.). When you move your lemongrass indoors, place it in a sunny window. If you suddenly find yourself with more lemongrass than window space, give it away to friends. They’ll be grateful, and you’ll have plenty more next summer. Lemongrass grows best in a container that’s about 8 inches (20 cm.) across and 8 inches (20 cm.) deep. Since it can grow much larger than that, it’s a good idea to divide and repot a lemongrass plant once every year or two. Lemongrass repotting is not at all difficult. Simply tilt the pot on its side and pull the root ball out. If the plant is especially rootbound, you may have to really work at it and there’s a chance you’ll have to break the container. Once the plant is out, use a trowel or a serrated knife to divide the root ball into two or three sections. Make sure each section has at least some grass attached to it. Prepare a new 8 inch (20 cm.) pot for each new section. Make sure each pot has at least one drainage hole. Fill the bottom third of the pot with growing medium (regular potting soil is fine) and place one of the lemongrass sections on top of it so the top of the root ball is an inch (2.5 cm.) below the rim of the pot. You may have to adjust the level of the soil to do this. Fill the rest of the pot in with soil and water thoroughly. Repeat these steps for each section and place them in a sunny spot.
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The only child of a horticulturist and an English teacher, Liz Baessler was destined to become a gardening editor. She has been with Gardening Know how since 2015, and a Senior Editor since 2020. She holds a BA in English from Brandeis University and an MA in English from the University of Geneva, Switzerland. After years of gardening in containers and community garden plots, she finally has a backyard of her own, which she is systematically filling with vegetables and flowers.
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