Landscape Blocks Around Tree: Don't Add Soil Over Roots—Use Mulch Instead

Question: Can I ring a tree with landscape blocks and fill with soil for flowers? Heard it kills the tree.

Answer: Never Add Soil Over Roots—Use ≤4" Organic Mulch Instead

Soil smothers roots (dense, low pore space). Up to 4" wood chip mulch is fine—light, air/water permeable.

Flowers only in existing soil under tree, not added fill.

—Mark Harshman | mahdrafting.com

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