How to Plant Lavender Outside Successfully

By Tom Anderson · July 9, 2025

Lavender is best planted outdoors in well-drained soil and full sun, ideally in spring or early fall. Choose a location with at least 6–8 hours of direct sunlight daily, prepare the soil to be slightly alkaline (pH 6.5–7.5), space plants 12–24 inches apart, and water sparingly after planting to prevent root rot. Proper site selection and drainage are critical for long-term success.

Choosing the Right Lavender Variety

Selecting the appropriate lavender species ensures better adaptation to your climate and growing conditions. The most common types suitable for outdoor planting include:

English Lavender (Lavandula angustifolia): Cold-hardy, ideal for USDA zones 5–8, known for fragrance and compact growth.
French Lavender (Lavandula dentata): Less cold-tolerant, thrives in zones 8–10, blooms longer but less fragrant.
Spike Lavender (Lavandula latifolia): Prefers hot, dry climates; higher camphor content, often used in cleaning products.
Lavandin (Lavandula x intermedia): Hybrid of English and spike lavender; vigorous growth, high oil yield, great for landscaping.

Best Varieties by Climate Zone

Variety	USDA Hardiness Zone	Height (inches)	Spacing (inches)	Flowering Season	Drought Tolerance
Lavandula angustifolia 'Munstead'	5–8	12–18	12–18	Early summer	High
Lavandula angustifolia 'Hidcote'	5–8	18–24	18–24	Early summer	High
Lavandula dentata 'Royal Crown'	8–10	24–36	24–36	Spring to fall	Moderate
Lavandula x intermedia 'Grosso'	6–9	24–30	24–30	Mid-summer	Very High
Lavandula stoechas 'Anouk Blue'	7–9	18–24	18–24	Spring to early summer	Moderate

Table data source:1, 2

The table shows that English lavender varieties like 'Munstead' and 'Hidcote' are best suited for colder regions and require less spacing due to their compact size. In contrast, French and Spanish lavenders grow larger and perform better in warm climates but need more space and are less winter-hardy. Drought tolerance correlates strongly with native habitat—plants from Mediterranean regions survive longer periods without irrigation.

Site Selection and Sunlight Requirements

Lavender thrives in full sun and requires at least 6–8 hours of direct sunlight per day. Insufficient light leads to leggy growth, reduced flowering, and increased susceptibility to fungal diseases.

Choose a south- or west-facing location for maximum sun exposure.
Avoid shaded areas near trees or buildings.
Ensure good air circulation to minimize humidity around foliage.

Soil Preparation for Outdoor Lavender Planting

Proper soil conditions are more important than frequent watering when growing lavender. These plants prefer lean, alkaline, and fast-draining soils.

Key Soil Characteristics

pH Level: 6.5 to 7.5 (slightly alkaline)
Drainage: Excellent—avoid clay-heavy soils unless amended
Nutrients: Low fertility preferred; too much nitrogen causes weak, leafy growth

If your soil is heavy or acidic, consider raised beds or amending with lime and coarse sand or gravel to improve structure and pH balance.

When and How to Plant Lavender Outdoors

The optimal times to plant lavender outdoors are in early spring (after last frost) or early fall (6–8 weeks before first frost). This allows roots to establish before extreme temperatures.

Step-by-Step Planting Guide

Choose healthy nursery plants with strong stems and no signs of mold or yellowing leaves.
Dig a hole twice as wide as the root ball but no deeper.
Amend soil if needed for drainage (mix in gravel or sand).
Place the plant so the crown is level with or slightly above soil surface.
Backfill gently and firm the soil around the base.
Space plants 12–36 inches apart depending on mature size (see table above).
Water lightly after planting—only when soil feels dry.

Avoid mulching with organic materials like bark; instead, use small stones or gravel to reflect heat and reduce moisture retention at the base.

Watering and Maintenance Tips

Overwatering is the leading cause of lavender failure. Once established, lavender is highly drought-tolerant.

Water deeply but infrequently during the first growing season.
Allow soil to dry completely between waterings.
Reduce watering significantly in winter months.
Prune annually in early spring to maintain shape and encourage bushy growth.
Cut back one-third of the plant each year, avoiding old wood with no green growth.

Common Problems and Pests

Lavender is generally pest-resistant but can suffer under poor cultural conditions.

Root Rot: Caused by poor drainage or overwatering; symptoms include wilting, browning, and collapse.
Fungal Diseases: Powdery mildew or botrytis may occur in humid conditions with poor airflow.
Aphids or Spittlebugs: Occasionally appear but rarely cause serious damage; hose off with water if needed.

Prevention through proper siting, spacing, and watering practices is far more effective than chemical treatments.

Frequently Asked Questions About Planting Lavender Outdoors

When is the best time to plant lavender outside?

The best time to plant lavender outdoors is in early spring, after the last frost, or in early fall, allowing at least 6–8 weeks for root establishment before winter. Spring planting avoids cold stress, while fall planting takes advantage of cooler temperatures and natural rainfall.

Does lavender come back every year?

Yes, most lavender varieties are perennial and return each year in suitable climates (USDA zones 5–10 depending on type). English lavender is the most cold-hardy and reliably comes back annually with proper care, including pruning and winter protection in colder zones.

How far apart should I plant lavender?

Space lavender plants 12–36 inches apart depending on the variety’s mature width. Compact types like 'Munstead' need only 12–18 inches, while larger hybrids like 'Grosso' require 24–30 inches. Adequate spacing ensures good air circulation, reducing disease risk and supporting healthy growth.

Can lavender grow in pots outside?

Yes, lavender grows well in containers outdoors as long as the pot has excellent drainage and is large enough (at least 12 inches in diameter). Use a gritty, well-draining mix and place the container in full sun. Container-grown lavender may need more frequent watering than in-ground plants but still requires drying out between irrigations.

How do I prepare lavender for winter?

To prepare lavender for winter, avoid fertilizing late in the season and refrain from heavy pruning in fall. Instead, prune lightly after flowering and remove debris around the base to prevent rot. In colder zones (below zone 6), apply a light layer of straw or gravel mulch after the ground cools to insulate roots without trapping moisture.