Re-establishing a Lawn on Clay Soil and Compost Grubs

Soil Amendment for Hard Clay

An Illinois homeowner with rich but hard clay soil asks about amendments before reseeding or sodding. Topsoil alone is insufficient. The respondent recommends tilling 4–6 inches of cedar bark mulch into 8–12 inches of clay for a 50/50 mix. Cedar mulch resists insects and breaks down slowly, keeping soil loose while microbes improve structure.

Grubs in Compost

Large grubs in compost may be beetle larvae. If chemicals are used on the lawn, worms and beneficial insects die when compost is applied. An organic program attracts toads, lizards, and grass snakes that eat grubs and other pests. Birds also help. The respondent’s compost teems with life because no chemicals are used.