About This Silica + Humic = Smarter Support. Potassium silicate supplies plant silica for cell-wall strength, while humic acid improves nutrient availability and root performance—an ideal combo for fast-growing vegetables. Super-Concentrated 0-0-4. A few mL per gallon—one 8-oz bottle makes up to 236 gallons. Built for Vegetables. Great for tomatoes, peppers, cucumbers, leafy greens & herbs. Supports stronger stems and firmer tissues to help plants tolerate heat, drought, and routine handling. Simplifies Your Veg Routine. Clear, fully water-soluble concentrate that mixes in seconds and rinses clean—use in a watering can or light foliar to support steadier growth and firmer tissues. Clean, USA Made. Fully water-soluble concentrate; don’t co-stock with calcium or magnesium salts (may precipitate). Manufactured in the USA with clear label directions for consistent results. Overview Brand : GARDENWISE Item Weight : 8 Ounces Item Form : Liquid Liquid Volume : 8 Fluid Ounces Specific Uses For Product : Vegetables (Tomatoes, Peppers, Cucumbers, Leafy Greens & Herbs), Indoor/Outdoor Use