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Lemongrass Seeds

Quick Facts:

    • Excels in greenhouses
    • Makes a great container plant
    • Aromatic and productive
    • Treat as a tender perennial
    • Open pollinated

Lemongrass Seeds

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Description:

Cymbopogon citratus. Lemongrass is a tropical plant from the grass family (Poaceae) that will grow well in temperate regions if given the right conditions. Sow Lemongrass seeds indoors in late winter using bottom heat or a seedling heat mat. Maintain moist conditions and a temperature around 21°C (70°F), and the seeds will germinate in 5 to 21 days. Be sure to use sterilized seed starting mix, and either a clear dome over your seedling tray, or sealed into a plastic bag to maintain moisture. Transplant outdoors or into containers in full sun once the weather has warmed up in early summer. At the end of summer move container plants into a frost free environment with good air circulation. Reduce watering to almost none, making the soil barely moist once a week.

When using Lemongrass in the kitchen, remove any loose, outer layers. Either use whole pieces, crushed slightly with a pestle or under the back of your cleaver, or slice sections very thinly in cross section. This will help break up the strong fibres of the grass stalks.

Tender Perennial

Quick Facts:

    • Excels in greenhouses
    • Makes a great container plant
    • Aromatic and productive
    • Treat as a tender perennial
    • Open pollinated

How To Grow

Lemongrass is a tropical grass that thrives in summer heat. It is well suited to container growing, and ideal for greenhouse cultivation. It can be grown as a perennial in our climate, but care must be taken to control moisture in the soil over winter, and to provide protection from frost. It is somewhat challenging to grow, but the reward is fresh, strongly aromatic stalks with very minimal carbon footprint. Hopefully these helpful tips will teach you how to grow lemongrass from seed.

Latin
Cymbopogon citratus
Family: Poaceae

Difficulty
Somewhat challenging

Season & Zone
Season: Hot season
Exposure: Full sun
Zone: Not hardy

Timing
Sow seeds indoors in late winter (mid-February to early March on the coast). Transplant outdoors only when night time temperatures are steadily above 10°C (50°F).

Starting
Press the seeds gently 5mm (1/4″) into pre-moistened, sterilized seed starting mix. Use seedling trays with plastic domes, or containers sealed inside large plastic bags. Use bottom heat from a Seedling Heat Mat to maintain a soil temperature of 21°C (70°F). Keep seed trays or containers in a dark room or cupboard. Seeds should germinate in 5 to 21 days. The trick is to maintain a moist, not wet, environment. Once seedlings appear, remove the dome or plastic bag, and move them into full sun or beneath strong, full spectrum, artificial light.

Growing
Harden seedlings off in early summer by gradually exposing them to full sun and cooler temperatures. Transplant individual seedlings into 5 gallon (or larger) containers, and apply high nitrogen organic fertilizer like Alfalfa Meal or Blood Meal at the time of transplanting. Just mix 1/2 cup into the soil before transplanting. Keep the soil relatively moist throughout the growing period, watering at least 2 or 3 times a week – more in hot weather.

At the end of the growing season, once night time temperatures begin to approach 10°C (50°F), cut back your lemongrass plants to 15-20cm (6-8″) tall, reduce watering, and discontinue feeding. Move your plants to a bright, airy spot, protected from frost. Water only enough to keep the soil barely moist to nearly dry. If plants seem congested, consider dividing them into clumps in early spring, and potting them on. Resume watering and feeding once spring growth appears.

Harvest
Use secateurs to snip whole stalks from the base of the plant as needed. Stalks should be at least 15mm (1/2″) thick before picking. Lemongrass dries well for use as a tea, and whole stalk segments can be bundled and frozen for use in soups and curry paste all winter long.

When using Lemongrass in the kitchen, remove any loose, outer layers. Either use whole pieces, crushed slightly with a pestle or under the back of your cleaver, or slice sections very thinly in cross section. This will help break up the strong fibres of the grass stalks.

Tender Perennial

[description action=”end”][quickfacts action=”start quickfacts”]

  • Excels in greenhouses
  • Makes a great container plant
  • Aromatic and productive
  • Treat as a tender perennial
  • Open pollinated

[quickfacts action=”end quickfacts”]”>

Plant some Lemongrass seeds in your organic herb garden and harvest long stalks of this fine aromatic Asian herb so popular in Thai and Vietnamese cuisines.

Lemon Grass Cymbopogon flexuosus

A true essential in Thai and Vietnamese dishes

The woody stems of this refreshing herb are also delicious for making an invigorating tea

Plant Size Height Up to 150cm (59.1in)
Spread Up to 90cm (35.4in)

Hardiness & Longevity Half-hardy Perennial

Ideal For patio greenhouse conservatory exotic garden

Position In Full sun

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Codes
1 packet (40 lemon grass seeds) (23774)

Sow lemon grass from late January to March on the surface of a good seed compost and cover with a sprinkling of compost or vermiculite. Place the seed tray in a propagator at a temperature of 20-25C (70-75F) or seal it inside a polythene bag. Keep the compost moist but not wet. Do not exclude light as this aids germination which is often slow, taking 21-40 days.

When seedlings are large enough to handle, transplant and grow them on in cooler conditions until large enough to plant outdoors. When lemon grass plants are well grown and all risk of frost has passed, acclimatise them to outdoor conditions over 7 to 10 days. Plant lemon grass outdoors, in a warm, sheltered spot at 30cm (12″) apart, on moist, well drained soil, in full sun.

Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.

Orders for packets of seed incur a delivery charge of £2.99.

Orders which include any other products will incur a delivery charge of £4.99.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £6.99 will apply – regardless of the number of items ordered.

Large items may incur a higher delivery charge – this will be displayed in your shopping basket.

Please see our Delivery page for further details, and more information on different charges that may apply to certain destinations.

For more information on how we send your plants please visit our Helpful Guide on plant sizes.

Lemon Grass seeds from Thompson & Morgan – experts in the garden since 1855