Miracle-Gro All-Purpose Liquid Plant Food 32oz
by Miracle-Gro
Miracle-Gro's Liquid All-Purpose Concentrate (12-4-8 NPK) feeds plants instantly by mixing with water at 1 teaspoon per gallon for houseplants or 2 tablespoons per gallon for outdoor gardens, and can be applied every 2 weeks throughout the growing season. The 32-ounce concentrate bottle is economical — it makes hundreds of gallons of diluted solution — and the formula is compatible with all plant types including flowers, vegetables, shrubs, and trees. A global best-seller for decades.
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What We Love
- Feeds plants instantly — no waiting for slow-release granules
- Highly economical concentrate makes hundreds of gallons of solution
- Proven formula with decades of documented results
- Works for indoor and outdoor, containers and in-ground
Worth Knowing
- Must be applied every 1–2 weeks — more maintenance than slow-release
- High nitrogen ratio (12-4-8) can cause lush leafy growth but may suppress blooming in flowering plants
"Miracle-Gro's liquid concentrate is the reliable workhorse fertilizer — not glamorous, but it genuinely works across virtually every plant type when applied consistently. The every-2-week application schedule is worth following (most people don't fertilize enough rather than too much). For flowering plants, switch to a bloom formula with higher middle and last numbers; for foliage plants, this 12-4-8 is excellent."