Managing Wild Thyme in Pasture: Lime, Spot-Spray, and Ecology

About Wild Thyme

Thymus serpyllum is a low, creeping perennial with pink-purple flowers. It's a valuable nectar source for honeybees and the large blue butterfly. It thrives in dry, rocky, low-pH soils.

Control Strategies

• Lime the soil: Raise pH to favor grasses over thyme. Use turf lime (pelletized).
• Spot-spray with glyphosate (Roundup): Apply only to thyme patches. Keep animals out until dry (per label).
• Accept some presence: It's not toxic to livestock; cattle and horses may graze it.

Is It a Weed?

Ecologically beneficial, but can dominate overgrazed, acidic pastures. Improving soil fertility and pH shifts balance back to grasses.