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Resolving Overwatering Disputes: Deep Soakings vs. Daily Sprinkling for Clay Soil

The Science

Northeast plants are adapted to rainy/dry cycles, not daily rain. They need ~1 inch of water per week in one deep soaking. Daily 30-minute watering creates:

Shallow roots (vulnerable to heat/drought)
Crown rot and leaf-spot diseases
Mushrooms (fungal sign)
Japanese beetle grub magnets (they lay eggs in moist soil)

Deep Soakings Promote

Deep roots that access water longer
Soil structure improvement (roots break up clay)
Air in root zone (roots need oxygen!)

My Schedule

Sandy soil + mulch: 2 hours every 7 days. Clay soil: 2–2.5 hours every 7–10 days. Adjust for temperature.

Reference

See my op-ed at Cape Cod Online (search "C.L. Fornari").

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