How to Grow Lavender from Seed: A Step-by-Step Guide
Growing lavender from seed is slower than buying plants, but it’s one of the most rewarding ways to raise strong, long-lived lavender that’s well adapted to your garden. Lavender seeds need patience, light, and careful watering — but once established, the plants are tough, fragrant, and low maintenance.
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This guide explains how to grow lavender from seed successfully, from sowing to planting out.
Is Lavender Easy to Grow from Seed?
Lavender is not difficult to grow from seed, but it is slow to germinate and dislikes wet conditions. Success depends on:
- Light
- Warmth
- Excellent drainage
- Minimal watering
Once seedlings are established, lavender becomes very resilient.
When to Sow Lavender Seeds
The best time to sow lavender seeds is:
- Late winter to early spring (February to April)
Seeds should be started indoors, where temperature and moisture can be controlled.
Lavender should not be direct-sown outdoors.
Do Lavender Seeds Need Cold Stratification?
Lavender seeds can germinate without cold treatment, but germination rates often improve with a short cold period.
Optional cold stratification:
- Place seeds on a damp paper towel
- Seal in a plastic bag
- Refrigerate for 2–4 weeks
- Sow immediately after removing
This is especially useful for older seeds.
What You Need
- Lavender seeds
- Seed trays or small pots
- Free-draining seed compost
- Vermiculite or fine compost
- Spray bottle or bottom-watering tray
- Warm, bright location
Avoid rich or water-retentive compost.
How to Sow Lavender Seeds (Step-by-Step)
- Fill trays or pots with free-draining seed compost
- Gently firm the surface
- Scatter seeds thinly on top
- Press seeds lightly onto the compost
- Cover very lightly with vermiculite or compost
- Mist gently or water from below
- Place in a bright, warm position
Lavender seeds need light to germinate, so do not bury them deeply.
Best Conditions for Germination
- Temperature: 18–22°C
- Bright light (no harsh direct sun)
- Compost kept just moist, never wet
Germination usually takes 14–28 days, but some seeds can take longer. Be patient.
Caring for Lavender Seedlings
Once seedlings appear:
- Move to the brightest location possible
- Ensure good airflow
- Water sparingly
- Let compost dry slightly between watering
Lavender seedlings are sensitive to excess moisture.
When to Pot On Lavender Seedlings
Seedlings are ready to pot on when they have:
- Several sets of true leaves
- Firm, upright growth
Carefully move them into individual pots using gritty compost. Always handle seedlings by the leaves, not the stem.
Growing Lavender On
As young plants grow:
- Keep in full light
- Water lightly and infrequently
- Do not feed heavily
Too much fertiliser causes weak, leafy growth.
Hardening Off Lavender Seedlings
Before planting outdoors:
- Gradually expose plants to outdoor conditions
- Start with a few hours per day
- Increase exposure over 7–10 days
This prevents shock and strengthens plants.
When to Plant Lavender Outside
Lavender grown from seed can be planted outdoors:
- Late spring to early summer
- After all risk of frost has passed
- Once plants are well established
Choose a sunny position with free-draining soil.
Soil Requirements for Lavender
Lavender thrives in:
- Free-draining soil
- Sandy, gritty, or chalky texture
- Neutral to alkaline conditions
Avoid heavy clay and rich compost.
Will Lavender Flower in the First Year?
- Some plants may flower lightly in year one
- Most lavender flowers fully in its second year
This is normal and leads to stronger plants long term.
Common Problems When Growing Lavender from Seed
Seeds Not Germinating
- Too wet
- Too cold
- Seeds buried too deeply
- Not enough light
Seedlings Dying
- Overwatering
- Poor airflow
- Cold, damp conditions
Reducing moisture solves most issues.
Why Grow Lavender from Seed?
- Cheaper than buying plants
- Stronger root systems
- Ideal for hedges and large plantings
- Longer-lived plants
- More satisfying results
Lavender grown from seed often outperforms shop-bought plants over time.
Final Thoughts
Growing lavender from seed takes patience, but the results are worth it. With light, warmth, excellent drainage, and careful watering, lavender seeds germinate reliably and grow into tough, fragrant plants that thrive for years. Start seeds indoors, resist overwatering, and give them plenty of light — and you’ll be rewarded with healthy lavender ready for the garden.