Woolly Thyme Dying in Connecticut: Too Much Rain, Fungal Rot

Mediterranean Plant in a Non‑Mediterranean Climate

80 woolly thyme (Thymus pseudolanuginosus) plants between flagstones in northern Connecticut browned out after heavy rains. The gardener suspects fungus.

Why It Fails

• Native to hot, dry hillsides (Mediterranean climate): summer highs ~86°F, only 1.33″ rain.
• Connecticut July: 4.63″ rain, temps up to 91°F.
• Excess moisture causes root rot and fungal diseases.

Can You Save Them?

• Maximize drainage: add more grit, sand, gravel; ensure no puddling between stones.
• Consider raised planting areas; flagstone paths are often low spots.
• Winter snow melt may also be too wet.

Realistic Outlook

Woolly thyme is a classic for the “Sissinghurst effect” but may not survive long‑term in humid, rainy climates without exceptional drainage. If it fails, try creeping thyme (Thymus serpyllum) or other tougher groundcovers.