MulchingA little mulch helps. A volcano hurts.
- Mulch piled against the trunk holds moisture on the bark, invites rot and pests, and encourages circling roots.
- Spread 2–4 inches deep, as wide as practical.
- Keep it a few inches back from the trunk so the flare shows.
- It moderates soil temperature, holds moisture, adds organic matter, and keeps mowers and trimmers away.
