Lavender

Lavender (Lavandula angustifolia) is a fragrant, woody perennial herb native to the Mediterranean basin, producing dense spikes of violet-blue flowers prized for their scent and ornamental value. It forms a compact, bushy mound of narrow grey-green leaves and is reliably hardy down to USDA zone 3. Lavender thrives in full sun with excellent drainage and tolerates poor, dry soils far better than rich, wet ones. It is an outstanding pollinator attractor and a versatile culinary and aromatic plant.

Growing

Soak seeds in water for 24 hours, then optionally stratify in a moist medium in the refrigerator for one to two weeks to improve germination rates. Scarify seed coats lightly with sandpaper before sowing. Start indoors approximately 10 weeks before the intended planting-out date, once nights stay consistently above 0 °C. Sow 0.5 cm deep in free-draining seed compost; keep the tray in a bright spot where temperatures reach 18–22 °C. Germination is erratic, taking 2–8 weeks. Thin or pot on when seedlings reach 4 cm. Space plants 25–40 cm apart in rows 40–50 cm apart; transplant outdoors once soil is workable and frost risk has passed.

Care

Water sparingly once established — lavender is drought-tolerant and will rot in waterlogged soil. Avoid heavy, clay-rich ground; amend with grit or plant on a raised bed or slope. Do not feed with high-nitrogen fertiliser; lean soil encourages compact, aromatic growth. Cut back by about one-third each year once new growth emerges at the base, removing spent flower stems and preventing the plant from becoming woody. Avoid cutting into old, bare wood. Mulch with gravel rather than organic material to keep the crown dry.

Harvest

Harvest flower spikes when approximately half the florets on each spike have opened — this is when essential oil content and fragrance are highest. Cut stems long, just above the lowest set of leaves. For culinary use, pick individual florets or whole spikes as the flowers begin to open. Repeat harvesting extends the flowering period. The plant blooms approximately 110 days from transplanting outdoors.

In the kitchen

Use fresh or dried lavender flowers sparingly in baking — shortbread, cakes, and honey-based desserts. Infuse dried buds into cream, milk, or sugar for a floral flavour base. Flowers pair well with lamb, duck, and berry-based sauces. Add a pinch of dried buds to herbes de Provence or salt blends. Lavender tea is made by steeping a small amount of dried flowers in hot water. Use less than you think you need — the flavour is potent and easily overpowers a dish.

Storing

Dry harvested stems upside down in small bunches in a warm, airy, dark space for one to two weeks. Once fully dry, strip the buds from the stems and store in an airtight glass jar away from light and heat; dried buds retain strong fragrance and culinary quality for up to two years. Fresh flowers can be frozen briefly but are best used immediately or dried. Lavender sugar — made by storing dried buds with sugar in a sealed container — keeps for several months.