East Indian lemongrass (Cymbopogon flexuosus) is one of the quickest and easiest herbs to grow from seed or divisions. It's also one of the most useful herbs to have in your garden.
Plants started early in the growing season will produce many leaves for harvest, and become quite a large plant by the end of the year. The useful part of the plant is the long blue-green leaves, which can easily reach 0,70 - 1,20 m in length. They are thin and flexible, so they bend over and give the entire clump a soft grassy look.
East Indian lemongrass is the species used commercially for lemon scent and flavoring in a wide array of products. The fresh or dried leaves are useful in tea or other drinks, as well as soups, stews, fish, meats, or any dish that would benefit from a lemon flavor. Leaves can be harvested any time of the year, but they do have a sharp edge which can slice your skin similar to a paper cut, so be careful when cutting them.
The essential oil from this species has also been found to have strong anti-cancer qualities.
As cool weather arrives in the fall, the leaves take on a reddish-bronze coloration.
In locations with nearly year-round growing conditions, the plants send up tall flower spikes in the late fall or early winter.
If you allow the plumes to remain all winter, seed will be produced and you're likely to find many lemongrass seedlings coming up in the surrounding area in spring.
As the common name indicates, Cymbopogon flexuosus is native to India. In some regions this species is known as cochin grass or Malabar grass. It is recommended for USDA Zones 8-11, but can be grown as a container plant anywhere.
Information source: https://growerjim.blogspot.com.es
Genus - Cymbopogon
Species - flexuosus
Variety - East Indian
Common name - Lemongrass
Pre-Treatment - Not-required
Plant type - Perennial herb, ornamental grass, indoor plant in cooler climates
Hardiness zones - 5 - 11
Exposure - Full Sun, Partial Sun
Height - 0,70 - 1,20 m
Spread - 1 m
Growth rate - Medium
Leaf / Flower color - Green, reddish-bronze / --
Soil PH - Acid, neutral, alkaline
Soil type - Average garden soil, moist
Water requirements - Average, high
Landscape uses - Container plant in cooler climates, cottage gardens, indoor plant
Sow indoors in the end of winter till spring on the surface of soil.
Cover lightly with a fine layer of vermiculite. Cover with clear plastic or glass. Keep moist.
Germinate at +20-+22C.
Germination time - 20-40 days.