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Lavender
Lavandula angustifolia
Overview
The iconic Mediterranean herb whose intoxicating fragrance has made it the world's most popular aromatic plant, grown commercially on millions of acres for essential oil, culinary use, and ornament. Lavender thrives in the same hot, dry, rocky conditions where most plants struggle, making it perfect for xeriscaping and Mediterranean gardens. English lavender (L. angustifolia) is the most cold-hardy and best for culinary use.
Lavender (Lavandula angustifolia) is a beloved herb that has been cherished for centuries due to its delightful fragrance, versatility, and numerous benefits. This member of the Lamiaceae family, native to the Mediterranean region, has earned its nickname as "true" or "English" lavender.
Appearance and Distinguishing Features
Lavandula angustifolia is an aromatic subshrub characterized by its slender leaves and terminal spikes of fragrant flowers. The lance-shaped leaves are 6-8 mm in length, linear, and grayish-green in color. From mid-summer to fall, the plant blooms with small, tubular, purple-blue flowers that grow in whorls on a naked stem.
Native Range and Habitat
Originally from the Mediterranean basin, including countries such as France, Italy, Spain, and Greece, Lavandula angustifolia thrives in dry, well-drained soils and sunny locations. It has been cultivated for millennia, with evidence of its use dating back to ancient civilizations.
Growing Conditions and Care
To grow this fragrant herb successfully, ensure that your soil is well-draining and has a pH level between 6.7 and 7.3. Lavandula angustifolia prefers full sun exposure but can tolerate partial shade in hotter climates. Water the plant deeply during its growing season, allowing the soil to dry out slightly between waterings. Prune the plant after flowering to maintain its shape and encourage healthy growth.
Uses
Lavender oil, derived from the flowers of Lavandula angustifolia, has been used for various purposes throughout history. The essential oil is commonly employed in aromatherapy to promote relaxation and reduce stress. In addition, lavender's calming properties make it a popular ingredient in soaps, lotions, and other personal care products.
Lavender's culinary uses are also significant, with the dried flowers being added to tea blends or used to flavor sugar, syrup, and baked goods. The plant's therapeutic potential extends beyond its fragrant oil; the whole plant can be utilized for its anti-inflammatory, antiseptic, and calming effects in various medicinal applications.
Appearance
Ornamental Value: Lavandula angustifolia is a staple in herb gardens but is also an excellent addition to flower beds, borders, and containers. The plant's stunning purple-blue flowers and attractive evergreen foliage make it a popular choice for both practical purposes and aesthetic appeal.
Ecological Significance
Bees, butterflies, and other beneficial insects are drawn to Lavandula angustifolia, making it a valuable asset in promoting biodiversity within gardens and landscapes. Additionally, the plant's aromatic properties deter pests like mice, moths, and fleas, providing an organic solution for pest control.
Cultural or Historical Significance
Lavender has played a vital role in human history, being mentioned in ancient texts by figures such as Pliny the Elder and Hippocrates. The plant was widely used in perfumery, medicine, and culinary arts throughout Europe during the Middle Ages and Renaissance periods. Today, lavender remains an integral part of various cultures' heritage and is celebrated for its numerous benefits.
Notable Varieties or Related Species
While Lavandula angustifolia is known as "true" lavender, there are several cultivars worth mentioning:
1. Lavandula angustifolia 'Hidcote': A popular variety with deep purple-blue flowers and dense foliage. 2. Lavandula angustifolia 'Munstead': Known for its compact growth habit and fragrant flowers. 3. Lavandula angustifolia 'Nicolli': A selection with larger flowers and broader leaves than the species.
Other related lavender species, such as Lavandula dentata (French lavender) and Lavandula stoechas (Spanish lavender), offer gardeners a wider range of options when choosing these fragrant plants for their spaces.
Growing Conditions
Habitat & Range
- Habitat
- Shrublands & Hedgerows
- Cultivation Region
- southwest,pacific,southeast
Botanical data via projectGAIA.
Companion Planting & Soil
Good Companions
Sowing & Propagation
Planting Calendar
When to sow, transplant, and harvest by growing zone.
| Zone | Action | Months | Notes |
|---|---|---|---|
| Cold (1-2) | Transplant | Jun — Jun | Transplant after last frost; English types hardiest |
| Cold (1-2) | Harvest | Jul — Aug | Harvest when 1/3 of flower buds open |
| Cool (3-4) | Transplant | May — May | Transplant in spring; well-drained soil essential |
| Cool (3-4) | Harvest | Jun — Aug | Harvest when buds begin to open |
| Moderate (5-7) | Transplant | Apr — May | Transplant in spring |
| Moderate (5-7) | Transplant | Apr — May | Plant in spring after frost; needs excellent drainage |
| Moderate (5-7) | Harvest | Jun — Sep | Harvest flower stems for drying |
| Moderate (5-7) | Harvest | Jun — Jul | Cut stems when 1/3 of flowers are open for best fragrance |
| Moderate (5-7) | Prune | Mar — Apr | Prune 1/3 in early spring; never cut into old wood |
| Moderate (5-7) | Prune | Mar — Apr | Cut back by 1/3 in spring; never cut into woody growth |
| Warm (8-9) | Transplant | Mar — Apr | Plant in spring; Spanish/French types best |
| Warm (8-9) | Transplant | Mar — Apr | Plant in early spring; English lavender for cooking |
| Warm (8-9) | Harvest | May — Jul | Harvest before summer heat |
| Warm (8-9) | Prune | Feb — Mar | Prune 1/3 in late winter |
| Hot (10+) | Transplant | Feb — Mar | Plant in late winter |
| Hot (10+) | Harvest | Apr — Jun | Harvest in spring |
Uses
Culinary
- Buds used in herbes de Provence and baked goods
- Lavender honey and infused sugar
- Paired with lemon and berries in desserts
Medicinal
- Essential oil is the gold standard for anxiety and sleep support
- Topical use for minor burns and insect bites
- Aromatherapy for stress reduction and relaxation
Other Uses
- Premier bee and pollinator plant
- Drought-tolerant edging and hedge plant
- Sachets and potpourri for natural fragrance
Safety Notes
Flowers are safe to eat in small quantities. Essential oil should not be ingested. Culinary use is safe. May cause contact dermatitis in sensitive individuals.
