BOTANICAL NAME: Cymbopogon citratus
COMMON NAMES: lemongrass, ta krai, serai, citronella grass
FAMILY: Poaceae previously Graminae
I recently went to a talk at the Mullumbimby Community Garden by Jerry Coleby Williams (from our national broadcaster, the ABC) about cornerstone plants for the future – lemon grass would be right up there with them in his book and my book.
Why do I love this plant – because all parts are edible and it is very easy to grow AND – it is good for you.
It grows in grass-like clumps to 1 m tall. Lemongrass is adapted to hot wet summers and dry warm winters, is drought tolerant and will grow on a wide range of soils but prefers rich, moist loams. It dislikes wet feet. If it is damaged by frost in cooler areas, the tops should not be cut until all danger of frost has passed. This helps to protect the centre of the plant from further cold damage.
Food: a good source of vitamin A, the leaves can be used for tea, the stem bases are used in curries and Thai cooking & Vietnamese style salads. Also contains C, potassium, magnesium, iron & phosphorus. Lemon grass with mint is the favourite tea of this household – for adults and children alike.
Medicinal: oil used as anti-fungal. Tea used for calming the stomach (with fresh ginger and mint) – teas also used for lowering cholesterol (University Wisconsin). Use cut leaves in muslin bag added to bath water.
Mulch: it can be cut continuously for mulch during the warmer months. As an added advantage it will have some pest repellent properties.
Erosion control: it can be planted on the contour on steep banks to control erosion.
Edging: useful also as a barrier to running grasses around vegetable gardens. Attractive landscaping plant forming strappy lime green clump.
Recommended Planting Time: Plant spring in cooler areas; in tropical areas plant during the wet season.
Plant spacing: Plant rhizomes at a spacing of 1 m, with .5 m between rows.
Details: It rarely flowers. Harvesting for oil distillation begins when the clumps are 4-8 months old, it is subsequently harvested every 3-4 months, and this continues for about 4 years. The fresh grass yields 0.2-0.4% oil, giving 40-112 kg of oil/ha/yr.
Propagation: By division in late winter. For clumps around the garden, close to the house, you may want to dig them up annually and divide them before they get too big. Where space doesn’t matter – just shear off all the leaves in late winter (use as mulch) and just let it re-shoot.
Recipe: Dipping oil for bread. Store this in cool dark place for month shaking regularly.
Twig of rosemary, thyme
Bruised stem lemon grass
Clove of garlic