Lavender (Lavandula) is one of the most beloved aromatic plants in the garden, treasured for its silvery foliage, upright flower spikes and unmistakable fragrance. A member of the mint family, many familiar garden lavenders are native to the Mediterranean region. Lavender has a long history of household and garden use, including in the aromatic baths of ancient Greece and Rome. Its name is often linked to the Latin verb lavare, meaning "to wash." It later became closely associated with English gardens, scented linens, soaps and sachets.
Lavender thrives in sunny sites and fast-draining soil where many plants struggle. Whether you are edging a border, filling a terra cotta pot or cutting stems for dried arrangements, its flowers also support bees and other pollinating insects.
Lavender Fast Facts
- Botanical name: Lavandula species, including Lavandula angustifolia, Lavandula × intermedia, Lavandula stoechas, Lavandula dentata and Lavandula latifolia
- Plant family: Lamiaceae, the mint family
- Life cycle: Woody perennial, commonly grown as an evergreen or semi-evergreen sub-shrub
- Mature size: About 1 to 4 feet tall and wide, depending on species and cultivar
- Light: Full sun, with at least 6 hours of direct sunlight daily
- Soil: Lean to moderately fertile and sharply draining; many types prefer neutral to alkaline soil, although tolerance varies
- Planting season: Start seed indoors in late winter and transplant in spring after the danger of severe frost has passed; dormant outdoor sowing may also be used in late fall or winter
- Bloom season: Late spring through summer, varying by type and climate
- Water needs: Regular water during establishment, then deep but infrequent watering once established
- USDA zones: Hardiness varies widely; English lavender and many lavandins are commonly grown in zones 5 to 8, while Spanish and French types generally need milder winters or protection
How to Choose the Right Lavender Varieties
Choosing lavender starts with understanding its main groups. Each differs in hardiness, fragrance, form, bloom time and best use. Common names are applied inconsistently, so the botanical name is the most reliable way to identify a plant. Many named cultivars are maintained through cuttings and may not come true from collected seed.
English Lavender (Lavandula angustifolia)
Prized for its sweet fragrance and dependable cold hardiness, English lavender is a popular choice for temperate and cold-winter gardens with excellent drainage. It tends to be compact, with shorter flower spikes, and is the type most often selected for culinary use. Munstead and Hidcote are two widely grown cultivars.
Lavandin (Lavandula × intermedia)
Lavandins are hybrids between English lavender and spike lavender (L. latifolia). They are generally larger than English lavender, with long stems, abundant flowers and a higher essential oil yield. Their fragrance usually carries more of a herbal or camphor note. Grosso and Provence are two well-known selections used for large plantings, dried flowers and aromatic products.
Spanish Lavender (Lavandula stoechas)
Spanish lavender is easily recognized by the showy, petal-like bracts above each flower head. It may also be sold as French lavender, which is why the botanical name matters. It flowers earlier than many English types, and deadheading may encourage repeat bloom in some cultivars. It is less cold-hardy than English lavender and is well suited to mild-winter gardens or containers that can be protected.
French Lavender (Lavandula dentata)
French lavender has gray-green leaves with finely toothed or scalloped edges, reflected in the species name dentata. Its flower spikes are topped with decorative bracts. This tender species is best suited to mild climates or containers that can be moved to a bright, protected location before hard freezes. The name "French lavender" is also frequently applied to L. stoechas, so confirm the botanical name when choosing a plant.
Portuguese or Spike Lavender (Lavandula latifolia)
Lavandula latifolia is most consistently called spike lavender or broad-leaved lavender, although it is sometimes sold under Portuguese or Spanish lavender common names. It is one of the parents of lavandin and has broader leaves, long flower stems and a strong fragrance with noticeable camphor notes. It generally blooms later than English lavender. In regions with severe or wet winters, grow it in a protected, sharply drained site or a movable container.
When to Plant Lavender
Starting Lavender Indoors
Lavender seedlings develop slowly, so sow seeds indoors about 8 to 10 weeks before the last expected spring frost. If you plan to cold stratify the seeds, begin that treatment an additional 2 to 4 weeks earlier. Indoor starting provides excellent control over temperature, light and moisture, making it the most reliable seed-starting method. Lavender tolerates careful transplanting, but seedlings should be moved before they become crowded or root-bound. Transplant outdoors after the danger of severe frost has passed and the soil has begun to warm.
Planting Lavender in Spring
Direct sowing in spring is possible once the danger of severe frost has passed and the soil can be kept near the preferred germination range of 65°F to 70°F. Because spring-sown seeds have not been exposed to winter cold, they may benefit from 2 to 4 weeks of artificial cold stratification in the refrigerator before planting. Spring is generally the best season for moving indoor-started seedlings into the garden, while directly sown seedlings can be overwhelmed by weeds, heavy rain or sudden temperature shifts.
Planting Lavender in Summer
Directly sowing lavender seeds during hot summer weather is not recommended. High temperatures, rapid soil drying and weed competition make it difficult for slow-germinating seeds to survive and establish. If you want to start plants during summer, sow indoors in a temperature-controlled environment. Transplant as temperatures cool only if at least 6 to 8 weeks of suitable growing weather remain before regular freezes are expected.
Planting Lavender in Fall
Dormant fall sowing is an option where the seedbed drains well through winter. Sow after temperatures remain cold enough to prevent premature germination. Natural winter chilling can provide the cold, moist conditions that may improve lavender germination, and seedlings can emerge as conditions become suitable in spring. If you are setting out established transplants rather than seeds, plant early enough to provide about 6 to 8 weeks of growing weather before the ground freezes.
Planting Lavender in Winter
Winter sowing can provide natural cold stratification without using refrigerator space. Seeds may be sown directly into a sharply drained garden bed, but they remain vulnerable to displacement by weather, animal feeding, waterlogging and rot. Germination during a false warm spell may also expose young seedlings to later freezes. Vented, unheated containers left outdoors can help protect the seeds while still exposing them to winter conditions. Sow only after weather remains cold enough to prevent immediate germination, then monitor moisture as temperatures begin to rise in spring.
How to Plant and Grow Lavender
Growing lavender from seed takes patience. Bright light, moderate warmth and careful moisture control are especially important while the plants are small.
Starting Lavender Seeds Indoors
- Cold stratify if desired: Cold stratification is not an absolute requirement for every lavender seed lot, but it can improve germination and uniformity. Place the seeds in lightly moistened sand or seed-starting mix and refrigerate them at about 40°F for 2 to 4 weeks. Scarification and soaking are unnecessary. If seeds are placed in water, remember that both floating and sinking seeds can be viable, so a float test does not reliably measure seed health.
- Sow shallowly: Fill trays or small pots with a fine, well-draining seed-starting mix. Press seeds onto the surface or cover them with only a very light dusting of perlite or mix, no deeper than about 1/8 inch. Lavender germinates best with some light reaching the seed, so keep the covering thin.
- Provide warmth and light: Keep the growing medium near 65°F to 70°F and provide bright light. Maintain even moisture without saturation. Lavender germination often takes 2 to 4 weeks and may take longer.
- Grow sturdy seedlings: Keep seedlings under strong light and allow the surface of the mix to begin drying slightly between waterings. Move crowded seedlings into individual pots once they are large enough to handle.
- Harden off: After the danger of severe frost has passed, gradually expose seedlings to outdoor sun, wind and temperature changes over 7 to 10 days. Begin with a few hours in a sheltered location and increase their exposure each day.
- Transplant carefully: Set plants at the same depth they were growing in their containers. Space them about 18 to 36 inches apart, using the wider end for vigorous lavandins and other large cultivars. Water after planting and keep the root zone evenly moist, but not saturated, during establishment.
Direct Sowing Lavender Outdoors
- Choose the site: Select a weed-free location with full sun and soil that drains quickly after rain.
- Prepare the seed: Cold stratification for 2 to 4 weeks can improve results before spring sowing, or seeds can be sown dormant in late fall or winter for natural stratification.
- Sow on the surface: Scatter seeds thinly, press them into the soil and cover no deeper than about 1/8 inch.
- Manage moisture: Mist or water gently so the seed is not displaced. Keep the surface lightly moist during germination, but never saturated.
- Thin the seedlings: Once seedlings are established, thin or transplant them to stand 18 to 36 inches apart according to mature size.
Preparing the Planting Site
Lavender needs full sun and excellent drainage. If the site has heavy clay or holds water after rain, use a raised bed, mound or container rather than relying on a small amount of sand or gravel to correct the problem. Set transplants at their original growing depth and leave enough room for mature airflow.
How to Care for Lavender
Successful lavender care comes down to sun, drainage, moderate fertility and avoiding prolonged wetness around the roots and crown.
Sun and Soil
Give lavender at least 6 hours of direct sun, with more sunlight generally supporting denser growth and better flowering. Avoid sites reached by frequent lawn irrigation. Soil should drain quickly in every season, especially during winter dormancy.
Watering and Mulching
Water newly planted lavender regularly during its first growing season, allowing the soil to drain between waterings. Established in-ground plants are drought-tolerant but may still need deep watering during prolonged dry weather. Container-grown lavender dries more quickly and requires closer attention.
In humid or rainy climates, avoid thick organic mulch against the plant's base. A thin gravel mulch can help keep foliage away from damp soil, but leave the crown uncovered and make sure water can move freely through the root zone.
Feeding
Lavender has low nutrient needs and usually requires little to no supplemental fertilizer in ordinary garden soil. Excess nitrogen can encourage soft, leafy growth with fewer flowers and may reduce cold tolerance.
Pruning and Deadheading
Annual pruning helps many lavenders stay compact and delays the development of bare, woody growth. After the main bloom fades, remove spent flower stems and trim within the flexible, leafy growth. In cold or wet-winter climates, save major shaping for spring after new growth becomes visible. Avoid cutting deeply into bare old wood without leaves, as lavender may not resprout from it.
Deadheading is optional, but it keeps plants tidy and may encourage repeat bloom in Spanish lavender and other repeat-flowering cultivars.
Stress Risks
Root and crown rots are the most serious risks where soil remains wet or drainage is poor. Leaf spots and other fungal diseases may occur in humid, crowded or poorly ventilated plantings. Generous spacing, full sun, careful watering and open airflow help reduce these problems. Aphids and spittlebugs may appear occasionally, but their damage is usually minor.
When and How to Harvest Lavender
The best harvest stage depends on how you plan to use the stems. Cutting at the right time helps preserve fragrance, flower retention and color.
Harvesting Lavender for Drying
For dried stem bundles, cut when the first few florets on each spike have opened and most remain in bud. This early stage helps the flowers stay attached and retain their color. For loose buds, potpourri or oil-focused harvesting, growers may wait until more of the spike is open, often near half-bloom.
Harvest in the morning after dew has dried but before the strongest heat of the day. Use clean shears and cut stems long enough for bundling without removing large amounts of leafy growth from the plant at one time.
Drying Lavender
Gather stems into small, loose bundles and secure them with twine or rubber bands. Hang them upside down in a dark, dry, well-ventilated space. Drying commonly takes about 1 to 2 weeks, depending on humidity and bundle size. The lavender is ready for storage when the stems are crisp and the flowers feel dry and papery.
Saving Lavender Seed
To collect seed from a fertile species, leave several flower spikes on the plant until the heads are fully dry. Clip them into a paper bag, rub the heads gently to release the small seeds and remove as much chaff as practical. Store dry seed in a labeled paper envelope inside an airtight container in a cool, dry place.
Seed collected from named cultivars may produce plants that differ from the parent, especially where several lavenders grow close enough to cross-pollinate. Lavandins are generally sterile, so cultivars of Lavandula × intermedia are normally reproduced from cuttings rather than seed.
Frequently Asked Questions About Lavender
Is lavender toxic to pets?
English lavender is listed as toxic to dogs, cats and horses when ingested, with possible signs including nausea, vomiting and loss of appetite. Concentrated essential oils present a greater exposure risk and should not be applied directly to pets. Contact a veterinarian or animal poison-control service if a pet eats lavender or is exposed to concentrated oil and develops symptoms.
Can I grow lavender in containers?
Yes. Containers are especially useful when garden soil drains poorly or a tender lavender needs winter protection. Choose a pot with ample drainage holes and use a coarse, fast-draining potting mix. Place the container in full sun, water when the mix begins to dry and protect the roots from severe cold and prolonged winter rain.
Why is my lavender turning woody at the base?
Some woodiness is a normal part of lavender's aging process. Annual pruning within the leafy growth helps keep plants fuller and delays bare stems. Old, leafless wood may not produce new shoots, so avoid cutting below the lowest healthy foliage.
How often should I fertilize lavender?
Rarely, if at all. Lavender is adapted to relatively lean soil, and excess fertilizer can produce soft foliage at the expense of flowers. Feed only when poor growth is linked to a confirmed nutrient deficiency rather than drainage, shade or overwatering.
Does lavender come back every year?
Lavender is perennial where the chosen species or cultivar is suited to the local winter climate and the soil remains well drained. English lavender and many lavandins are among the hardier choices. Spanish and French lavenders are less cold-tolerant and are often grown as annuals or protected container plants in colder regions.
Give lavender abundant sun, sharp drainage and a little patience while it establishes. Those simple choices will do more than heavy feeding or frequent watering to build healthy plants with fragrant flowers for seasons to come.
