Lavender Winter Survival in Connecticut: Know Your Variety

Lavender hardiness in CT (Zone 6a) depends entirely on the species/cultivar.

Hardy Types (Zone 5–6)

• Lavandula angustifolia 'Munstead', 'Hidcote', 'Melissa Lilac'
• L. × intermedia 'Grosso', 'Provence' (marginal in 6a)

Tender Types (Zone 7+)

• Spanish lavender (L. stoechas)
• French lavender (L. dentata)
• Fringed lavender (L. multifida)

Decision Tree

1. If it survived early frosts outdoors: Likely hardy. Leave outside.
2. Insulate pot: Wrap with burlap/bubble wrap, mound mulch over crown, place against house wall.
3. Water monthly if dry—roots need moisture even dormant.
4. Do NOT bring indoors if hardy—warmth breaks dormancy, weakens plant.

If Tender or Unknown

Move to cool (40–45°F), bright garage/basement. Water sparingly. Return outdoors after frost.

Identify your variety (check tag, leaf shape, flower form) to choose the right strategy.