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Yellowing Tomato Seedlings: Drainage and Fertilizer Issues

Yellow leaves on seedlings usually mean poor drainage or overwatering, which leaches nutrients. Burnt leaf tips suggest root burn from excess nitrogen or salt in synthetic fertilizers.

Fixes

Allow soil to dry between waterings.
Switch to organic fertilizers (balanced N-P-K) for seedlings.
Use soil-less mixes for starting; avoid salty synthetics.

Consistent moisture and gentle feeding prevent these issues.

Growing Vegetables: Growing Heather in Clay Soil: Italian Hillside Garden; Container Tomatoes on a Deck: Varieties, Soil & Calcium Tricks; Growing Better Tomatoes: Soil Prep, pH, and Raised Beds; Damping Off: Why Seedlings Rot at Soil Line; Natural Pest Control for Basil and Tomatoes: Diatomaceous Earth; Diagnosing Tomato Stem Disorders and Fusarium Wilt; Diagnosing Brown Leaves on Tomato Plants: Overwatering vs Sunscald; Tomato Flower Buds Disappearing: Pests or Pollination?; Transplanted Tomato Stunting: Soil Fertility Gap; Complete Guide to Growing Tomatoes: From Seed to Harvest

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