Common Name | English lavender, common lavender |
Botanical Name | Lavandula angustifolia |
Family | Lamiaceae |
Plant Type | Perennial, herbaceous |
Mature Size | 1-2 ft. tall, 2-3 ft. wide |
Sun Exposure | Full, partial |
Soil Type | Loamy, sandy, silt, well-drained |
Soil pH | Neutral, alkaline |
Bloom Time | Summer |
Flower Color | Purple, white, pink |
Hardiness Zones | 5-9 (USDA) |
Native Area | Mediterranean |
Toxicity | Toxic to humans and pets |
English Lavender Care
Light
Grow English lavender in full sun. Shady locations usually cause the plant to become leggy and produce fewer blooms. At the upper end of its zone range, though, the plants respond well to some shade in the heat of the afternoon.
Soil
English lavender must be planted in a relatively sandy or gritty but very well-draining soil with a pH between 6.5 and 7.5. Humus-rich, damp soils frequently cause root rot. Strive for a soil similar to its native Mediterranean region, where the soil is dry and infertile. Adding organic material to the soil is not only unnecessary but might cause problems.
Water
Young English lavender plants should be watered every other day for the first week. Once established, they are quite drought-tolerant, and too much water inhibits their ability to bloom. Mature plants only need to be watered during periods of dry weather, about once per week.
To promote a healthy bloom, after flower buds form, increase the watering frequency to about every four days.
Temperature and Humidity
English lavender grows best in warm conditions but not oppressively hot conditions with low humidity. The plants do poorly in humid climates.
Fertilizer
Do not fertilize English lavender, which may inhibit its ability to flower.
Types of English Lavender
- L. angustifolia ‘Hidcote’: a very popular and fragrant shorter variety (about 20 inches tall) with a mounded growth habit and dark purple flower spikes
- Lavandula x intermedia ‘Hidcote Giant’: a larger version with long stems, achieving a height of 36 to 40 inches with very fragrant bright violet flower spikes
- L. angustifolia ‘Munstead’: a slow-growing mounding variety 18 inches tall with rosy-purple flower spikes.
- L. angustifolia ‘Sarah’: a 12-inch-tall compact cultivar with medium purple flowers that are ideal for containers
- L. angustifolia ‘Jean Davis’: a small, slow-growing variety with light-pink flowers that grows to about 18 inches tall
Pruning
When to Prune English Lavender
To promote continued bloom, remove faded flower stalks.
Once the plants are well established, in their second season and beyond, prune lavender plants in the spring after new stems and leaves appear.
A second light pruning after flowering or in late summer or early fall before the first frost encourages good air circulation, which guards against rot. English lavender typically blooms only once per season, but some varieties might send up a second flush of blooms if it has been pruned again after flowering.
How to Prune English Lavender
In the spring pruning, cut about one-third of the green stalks to maintain a rounded shape. Never cut into the old woody stems.
Every three years, shear the plants to about eight inches from the ground to control the plants’ size and promote new growth.
Propagating English Lavender
Lavender is much easier to propagate through stem cuttings than by the challenge of growing plants from seed. Take these easy steps to propagate lavender plants:
- Use a clean and sharp tool to cut six-inch-long shoots that do not have a flower or bud. Remove the lower leaves.
- Dip the cut ends into rooting hormone.
- Plant cuttings in a pot filled with potting soil or sand.
- Keep the cuttings in a part-shade location and water frequently until they are well rooted (in about three weeks) for planting outdoors or in an indoor container.
Potting and Repotting English Lavender
English lavender can be grown in pots with well-draining soil. You will know it’s time to repot the plant when you see roots coming out of the bottom.
When choosing its new pot, be sure to choose a container that is one size up and has a drainage hole. Preferably, choose a terra-cotta pot that will help wick away excess moisture from the soil. Keeping the root ball together, move the plant into the new pot with fresh, well-draining soil.
Overwintering
English lavender might not survive through the winter if the soil is too wet or if temperatures dip well below zero degrees Fahrenheit without protective snow cover or mulch. At the lower end of its hardiness range, the plants should be protected over winter with a thick layer of mulch until spring. To avoid soil humidity issues, mulch the plants with rock or gravel rather than organic mulch.
In northern locations, potted English lavender plants should be winterized to insulate the roots against the cold.
Common Plant Diseases
English lavender is not affected by many diseases. However, it is susceptible to leaf spot and root rot. Remove affected leaves succumbing to leaf spot. Plants with leaf spot might require better air circulation. To prevent root rot, do not overwater your plants; they do not do well in constantly moist soil.
How to Get English Lavender to Bloom
When planted in the proper spot, with enough sunlight and proper soil, English lavender should supply you with blooms year after year.
Bloom Months
English lavender typically blooms in late May or June depending on your location, and it tends to stay in bloom for about a month.
What Do English Lavender Blooms Look and Smell Like?
The actual flowers on lavender plants are small, densely packed, and shaped somewhat like pinecones. Regarding their namesake color, lavender blooms are typically a purple shade. Both the flowers and the leaves emit the signature fragrance, a combination of woodsy and sweet.
How to Encourage More Blooms
Make sure English lavender is getting enough sunlight and avoid fertilizing and overwatering the plant.
Caring for English Lavender After It Blooms
Once your English lavender is done blooming, cutting back the flowers is optional. It may send out a second round of blooms.
Deadheading English Lavender Flowers
Deadhead spent English lavender flowers regularly to encourage the plant to send out even more flowers.