04/12/2026
Thyme looks fine right up until you notice only the tips are still producing leaves. The rest is a tangle of dry brown stems that snap between your fingers. The problem builds quietly because thyme keeps smelling right at the tips while the base dies back centimeter by centimeter. 🌿
Thyme is not a plant that manages itself. It's a subshrub that woody-izes faster than most gardeners expect — in two years without pruning, hard wood climbs to mid-height and new growth only emerges in a crown at the top. The result is a small bare-stemmed plant with a ball of foliage at the tip, impossible to harvest properly.
Three pruning windows that keep thyme dense and productive:
Early spring — March or early April: the main cutback. Shorten all stems by about a third, staying strictly in the soft green section. The grey woody base below will not regrow — this is the same absolute rule as lavender and rosemary. Cut into wood and you lose the plant.
May through June — harvest actively. Cut whole stems rather than picking individual leaves. Every cut forces two new lateral branches below it, which densifies the plant instead of thinning it. Pinching leaves while leaving the stem intact is the least effective method — the stem continues elongating and woodying without branching.
September — light maintenance trim to remove stems that are reaching outward and breaking the compact shape.
Two things most gardeners don't know about thyme:
Planting in rich soil causes fast upward growth but twice the rate of woodification. Poor, well-drained, gritty soil keeps thyme compact far longer. If your thyme is going woody fast, the soil may be too good.
After three to four years, even well-managed thyme reaches the end of its productive life. Layer a low branch in spring — press a stem to the ground under a handful of soil — and you'll have a rooted new plant in a few weeks, ready to replace the parent plant without buying anything.
Three years of fragrant harvests hang on one cut in March. 🌱