How to Grow Wonderland Lavender Blue

Wikimedia Commons

Wonderland Lavender Blue

Lavandula angustifolia 'Wonderland Blue'

herb

Wonderland Lavender Blue is a compact cultivar of English lavender known for its vibrant blue-purple flowers and aromatic foliage. This dwarf variety is ideal for containers, borders, and small garden spaces, reaching only 12-18 inches tall. It blooms prolifically from early to mid-summer with fragrant spikes that attract pollinators and provide excellent fresh or dried flowers.

When should you plant Wonderland Lavender Blue in your zone?

Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.

Get my Wonderland Lavender Blue timeline →

Example Wonderland Lavender Blue timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Wonderland Lavender Blue

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Wonderland Lavender Blue

    Around Jun 16

    ≈ 60 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Wonderland Lavender Blue dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily minimum; tolerates very hot conditions
💧
Water: Low water needs once established. Water deeply at planting, then sparingly. Allow soil to dry between waterings. Drought-tolerant; overwatering is the main cause of failure. In humid climates, water only at soil level to prevent fungal issues.
📏
Spacing: 12 inches
📅
Days to maturity: 60-90 days to first flowers; full mature form in 1-2 seasons
🌱
Planting depth: Surface sow seeds or plant transplants at same depth they were growing; do not bury stem

Soil

Type: Well-draining sandy or gravelly loam
pH: 6.4-7.5
Amendments:
Coarse sand or perlite to improve drainage Gravel mulch around base Minimal organic matter (avoid excessive compost)

Growing Zones

Find your zone →

Thrives in zones 5-9, with protection in zone 4

4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b

Sign up free to see if Wonderland Lavender Blue grows in your zone — and get a personalized planting timeline.

Get my Wonderland Lavender Blue timeline →

Growth Stages

1

Seedling

2-4 weeks

Tiny green seedlings with narrow opposite leaves emerge. Growth is slow initially.

Keep soil lightly moist but not waterlogged. Provide bright light. Thin seedlings to proper spacing early. Do not overwater.

2

Vegetative Growth

4-8 weeks

Plant develops a compact mounding form with fine, silvery-green linear foliage. Stems become woody at base.

Water moderately during establishment (first 4-6 weeks). Once rooted, reduce watering significantly. Pinch growing tips early to encourage bushier form if desired.

3

Bud Formation

2-3 weeks

Flower spikes begin to emerge from the foliage, showing tight clusters of unopened blue-purple buds.

Maintain consistent watering schedule but do not overwater. Reduce nitrogen fertilizer to avoid excessive leaf growth. Full sun is critical at this stage.

4

Flowering

4-8 weeks (longer with deadheading)

Vibrant blue-purple flowers fully open along dense spikes, creating a striking display. Peak bloom occurs in early to mid-summer.

Deadhead spent flowers to encourage additional blooms and extend flowering season. Ensure excellent drainage. Cut flowers in early morning when fragrance is strongest.

5

Seed Development & Dormancy

Ongoing through dormancy

Flowers fade and seed pods form. Foliage may yellow slightly in late summer. Plant enters semi-dormancy in fall and winter.

Allow some flowers to remain for seed production and winter interest, or remove all for continuous blooming. Reduce watering in fall. In spring, prune back to 6 inches to encourage new growth; do not prune into old wood.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Plants requiring frequent watering (hydrangeas, hostas, ferns) Heavy feeders that compete for nutrients Plants sensitive to drought conditions

Common Pests

  • Spray with water to dislodge; use neem oil if severe. Ensure good air circulation. Most problematic in hot, dry conditions.

  • Spray with strong water stream or insecticidal soap. Encourage beneficial insects like ladybugs. Usually minor issue.

  • Hand-pick beetles in early morning. Remove infested flower spikes. Rarely requires chemical intervention.

  • Prevent with excellent drainage and sparse watering. Remove affected plants. Improve soil with sand/gravel amendment.

Uses

🍳

Culinary flavoring & beverages

Culinary

Lavender flowers add a delicate, floral flavor to teas, baked goods, honey, sugar, and savory dishes. The edible flowers can garnish salads and desserts, providing both visual appeal and subtle floral notes. [source]

💊

Relaxation & aromatherapy

Medicinal

Lavender is renowned for its calming properties and is commonly used in essential oils, sachets, and herbal preparations to promote relaxation and support restful sleep. Linalool and linalyl acetate are the key aromatic compounds responsible for these effects. [source]

🏠

Natural fragrance & pest deterrent

Household

Dried lavender flowers fill drawers, closets, and rooms with pleasant fragrance while naturally repelling moths and other storage pests. Lavender sachets are a chemical-free alternative to synthetic air fresheners. [source]

🎨

Dried floral arrangements & crafts

Craft

Wonderland Lavender Blue's compact flower spikes and vibrant color make it excellent for dried flower arrangements, wreaths, potpourri, and other craft projects that retain beauty and fragrance for months. [source]

🦋

Pollinator support

Wildlife

The abundant nectar-rich flowers are highly attractive to bees, butterflies, and other beneficial pollinators, making this cultivar an excellent choice for supporting pollinator populations in gardens. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Cut flower spikes in early morning after dew dries but before full sun, when 50% of flowers on the spike have opened—this is when fragrance and color are most concentrated. Use sharp shears and cut stems 6-8 inches long, leaving at least 2-3 inches of foliage on the plant. For dried flowers, hang bundles upside down in a warm, airy, dark location for 2-3 weeks. Harvest regularly to encourage additional blooming. Avoid cutting after mid-August in cold climates to allow plant to harden off for winter.

Fun Facts

  • 🌱 Wonderland Lavender Blue was specifically bred to be more compact and earlier-flowering than standard English lavender, making it ideal for small spaces and containers—the 'Wonderland' series is known for these dwarf characteristics.
  • 🌱 Lavender has been used by humans for over 2,500 years; ancient Romans added it to their bathwater (the name comes from Latin 'lavare,' meaning 'to wash') and used it to scent their famous baths.
  • 🌱 A single mature lavender plant can bloom for 15-20+ years with minimal maintenance, making it one of the longest-lived perennial herbs and an exceptional investment for permanent garden features.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Join 30,000 gardeners planning their gardens with LizPlants.

Get your personalized Wonderland Lavender Blue planting timeline

Tell us your zip code and we'll calculate exactly when to start Wonderland Lavender Blue seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.

Get my Wonderland Lavender Blue timeline →