Fixing Over-Drained Sandy Loam in Raised Beds

Years of deep digging and heavy leaf mulch can create soil that’s too porous, drying out daily even with mulch.

The Imbalance

Ideal garden soil: ~45% clay, 35% sand, 20% organic matter. Excess organic matter (>30%) acts like a sponge that won’t hold water.

Correction

1. Blend in regular topsoil (with clay content) to reduce pore space.
2. Limit annual mulch to 1 inch of leaf compost.
3. Install drip irrigation for efficient, consistent moisture.

Stop deep tilling; it accelerates organic matter breakdown.