Lawn Fertilizer on Vegetables, Flowers, Trees: Why It's Wrong

N-P-K Mismatch

Lawn fertilizer = high nitrogen (leaf growth). Vegetables need balanced N-P-K for roots/fruit. Flowers need phosphorus for blooms. Trees need phosphorus for fruit. Lawn fertilizer on tomatoes → lush leaves, few tomatoes.

Weed Killer Danger

Many lawn fertilizers contain herbicides. They'll kill your vegetables permanently. Scotts' practices are particularly egregious.

Right Fertilizer by Plant Type

• Leaf crops (basil, chives): Moderate nitrogen.
• Fruiting crops (tomatoes, peppers): Higher phosphorus.
• Flowering plants (roses, petunias): Phosphorus for blooms, not excess nitrogen.
• Fruit trees: Phosphorus for fruit set.

Universal Recommendation

Soil test first. Tell me your zip code—I'll find your Extension office. Then tell me what you're growing. My favorite fertilizer: compost tea—feeds soil biology, balances nutrition naturally.