Gardening with Wool Pellets
If you're new to gardening with wool pellets the basics are simple: mix or spread the wool pellets, water them into the soil, and let them work through the season.
Watch the step by step video here.
Step 1 — Measure and spread or mix
For containers, add about half a cup of wool pellets to every four cups of potting soil. You can mix them right into the soil before planting, or sprinkle them on top of an already-potted plant.
For raised beds and in-ground gardens, spread a thin layer of pellets across the soil surface or work them into the top few centimeters. There's no need to bury them deep, they'll expand and settle once watered.
If you're top-dressing an existing bed, just scatter the pellets around the base of your plants. Over time the pellets will expand and form a dense crust on the soils surface.
Step 2 — Water to activate
Once the pellets are in place, give them a good soak. Water is what triggers the expansion, dry pellets are compact, but they swell and soften as they absorb moisture.
This is the step that makes the difference. The expanded wool acts like a sponge in your soil, holding water near roots and releasing it as the surrounding soil dries out. You should notice the pellets puff up within a few minutes of watering.
Step 3 — Let the pellets work through the season
After watering in, the pellets do their job quietly. They hold moisture between waterings, which may mean you water less often, though how much depends on your climate, container size, sun exposure, and soil mix.
Over weeks and months, soil organisms begin to break the wool down. That slow decomposition is what releases small amounts of nitrogen and other nutrients back into the soil. It's not a replacement for a balanced fertilizer program, but it's a helpful contribution, especially in containers where nutrients wash out quickly.
You don't need to remove the pellets at the end of the season. Whatever hasn't fully broken down can stay in the soil or get turned into next year's bed.
What to expect
In the first week or two, you'll see the pellets expand and settle into the soil surface. Over the following months, they'll gradually felt and soften as they decompose.
Moisture retention is the most noticeable benefit early on. Many gardeners report longer intervals between waterings, particularly in containers and raised beds that tend to dry out fast. Results vary with application rate, weather, and soil type.
Wool felt products (sheets and rolls) work differently from pellets — they sit on the soil surface as a weed-suppressing mulch. If you're curious about those, the WoolGrown shop has details on sizing and application.