Examples of N‑P‑K labels shown include: 9‑6‑2, 3‑2‑1, 5‑2‑2, 0.02‑0.02‑0.02, 00‑00‑00, and 0.17‑0.14‑00.
The products use three main application types: concentrated formulas that you mix with water, ready‑to‑spray/manual spray options, and simple hand‑dispense bottles.
Some are intended for foliar spray, others for soil drench, and a few specify spraying both foliage and soil surfaces until wet.
Growth‑focused concentrates emphasize lush foliage and strong roots; bloom‑focused formulas highlight larger, longer‑lasting blooms and include extra phosphorus or bloom‑supporting extracts.
Dilution varies by product. Examples from the listings: a 5.1 fl oz super concentrate can make up to 30 gallons of solution; a 32 oz bottle can make about 10.75 gallons; some indoor concentrates advertise roughly 95 applications.
They cover a wide range: fruits and vegetables (tomatoes, berries), nuts and berries, herbs, flowers and ornamentals, trees and shrubs, transplants and houseplants — for both container and in‑ground use.
Directions vary, but many recommend reapplying every 7–14 days for outdoor garden plants and about every 2 weeks for indoor plants.
Ready‑to‑spray formulas (often with a hose‑end sprayer) require no mixing and are applied directly, while concentrates must be mixed with water per label directions (e.g., specified ounces per gallon) before application.