English lavender
薰衣草 Lavandula angustifolia · Lamiaceae
A Mediterranean subshrub that rewards one careful cut a year: harvest the spikes, then prune the green growth — never the bare wood.
Cut flowers, not wood
Lavender is pruned for two different reasons, and mixing them up is how plants become leggy or die. The flower harvest is one cut; the size and shape are another. Cut the spikes as the buds open, then prune the current year's green growth after flowering. Do not cut into the bare, old wood: lavender often will not resprout from it.
A light annual prune keeps the bush compact and delays the woody, open centre that makes old lavender look tired. In cold, wet climates, take cuttings every summer so you have young replacement plants before the old one gives up.
| When | What to cut | Why |
|---|---|---|
| Buds swelling, first flowers opening | Flower spikes with a short stem | Best scent and colour |
| Immediately after flowering | About a third of the current year's green growth | Keeps the bush compact |
| Do not cut into bare old wood | Leave several green sideshoots | Old wood may not resprout |
| Late autumn | Light tidy only; no hard prune | Avoid winter die-back |
Growing it
PFAF gives USDA zone 5–8 and describes lavender on dry, rocky, often calcareous ground in full sun. In a garden, give it sharp drainage and lean soil. Add grit to the planting hole on clay, grow it in a raised bed or a pot, and keep the crown clear of mulch.
Water young plants to establish, then sparingly; lavender tolerates drought and resents wet feet. Prune after flowering, but leave green growth on the stems. In wet, cold climates, choose a sheltered wall and take cuttings each year.
Harvest and drying
Cut the flower spikes when the buds are swelling and the first flowers are opening. Harvest in the morning after dew has dried, when the oil content is highest. Leave a few spikes for the bees.
Bundle the stems and hang them in a dark, airy place, or lay them on a drying rack. Once dry, rub the buds from the stems and store them in an airtight jar. The buds keep their scent for a year or more and can also be used in sachets.
- Cut spikes as the first flowers open.
- Harvest in the morning, after dew.
- Dry in bundles, in the dark.
- Rub out the buds and store airtight.
Identifying it
English lavender has narrow, grey-green leaves and dense spikes of small, fragrant purple flowers on square stems. The whole plant is aromatic. French and Spanish lavenders have broader leaves and different flower forms, and are less hardy.
Lavandin (Lavandula × intermedia) is a hybrid with larger plants and higher oil yield. It is grown similarly but is less cold-hardy. Check the label if hardiness matters.
Traditional context
Lavender has a long history in European household and cosmetic use, from linen chests to bath preparations. The essential oil is a concentrated product and should not be treated like the dried flower.
NCCIH notes that oral lavender products have been studied for anxiety, but the research has limitations; it also flags possible interactions with sedatives and little known about use in pregnancy or breastfeeding. This page covers growing and handling, not a dose or treatment plan.
Cautions
Safety notes for english lavender
- Essential oil should not be swallowed without qualified guidance; it is toxic in overdose.
- Undiluted oil can irritate skin and sensitise it; always dilute for topical use (PFAF).
- May add to the effect of sedatives; caution with sleep medication and before surgery (NCCIH).
- Little is known about safety in pregnancy and breastfeeding; ask a clinician before regular medicinal use (NCCIH).
- Some children using topical lavender products have developed breast swelling; the cause is unclear, but avoid concentrated topical use on young children without advice (NCCIH).
- Aromatherapy may cause headache or coughing in some people.
- This is horticultural information, not medical advice or a dose recommendation.
A starting point for a conversation with a qualified practitioner or pharmacist — not a diagnosis, dose or treatment plan. See the full safety page.
Questions this plant raises
Why is my lavender leggy and bare?
It has not been pruned regularly, or it is growing in too much shade. Prune after flowering each year and replace very old plants from cuttings.
Can lavender survive winter in a pot?
It can, but wet compost is the main risk. Use a gritty mix, raise the pot on feet, and shelter it from winter rain.
Which lavender is best for cooking?
English lavender (L. angustifolia) has the mildest, sweetest flavour. Use the buds sparingly; lavender is a strong seasoning.
Sources & further reading
Accessed for horticultural and safety context. Traditional-use statements are historical and are not evidence of effectiveness. Written and edited by the Herb Ledger editorial team. Read the editorial policy.
More flowers & flowering tops
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