Troubleshooting
Woolly Thyme problems — and how to fix them
Woolly Thyme (Thymus pseudolanuginosus) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Center die-out (crown rot)
The middle of the mat browns and dies, usually from excess moisture or poor drainage; lift and divide healthy edge sections, and improve grit in the soil.
Leggy, sparse growth
Caused by too little sun or over-rich soil; move to full sun and stop feeding to restore the tight silvery mat.
Sparse or absent flowering
Woolly thyme flowers shyly and is grown for foliage, not bloom; this is normal and not a sign of poor health.
Winter wet damage
In heavy, waterlogged winter soil the woolly foliage rots; plant in raised, gritty beds and avoid mulching directly over the crown.
Prevent woolly thyme problems before they start
Most woolly thyme issues are care-mismatch, not bad luck. Dial in the basics:
Looking for woolly thyme in general rather than its problems? Read the full woolly thyme care guide — light, water, soil and feeding.
Woolly Thyme problems — FAQ
Why is my woolly thyme center die-out (crown rot)?
The middle of the mat browns and dies, usually from excess moisture or poor drainage; lift and divide healthy edge sections, and improve grit in the soil.
Why is my woolly thyme leggy, sparse growth?
Caused by too little sun or over-rich soil; move to full sun and stop feeding to restore the tight silvery mat.
Why is my woolly thyme sparse or absent flowering?
Woolly thyme flowers shyly and is grown for foliage, not bloom; this is normal and not a sign of poor health.
Why is my woolly thyme winter wet damage?
In heavy, waterlogged winter soil the woolly foliage rots; plant in raised, gritty beds and avoid mulching directly over the crown.