Jack's Classic

Jack's Classic All Purpose 20-20-20 Water Soluble Plant Food – 1.5 lb

High-performance patio lawn and garden made for confident daily results

$30.98

3 shoppers currently have this item in cart.

Low stock: only 5 left in inventory. Add to cart before it's gone.

Shop Pay installment options may appear at checkout where eligible.

Free shipping Secure checkout 100% refund eligible
Bundle & save Buy 2 and save checkout time

Premium patio lawn and garden quality selected for United States (USA) customers.

Routine pack Build your routine pack (3)

Fast dispatch with always-free shipping and secure checkout on every order.

Free shipping

i

Free shipping on every order. Fast dispatch, tracked delivery, and secure checkout included.

Easy returns

i

Simple return flow and responsive support for eligible items.

Peak-demand shipping delays

i

During high demand, deliveries may experience short carrier delays. Tracking updates remain active for every order.

24/7 customer support

Questions before checkout? Our team is available and ready to help.

Share

Why customers choose Cera Garden

Overview

Jack's Classic All Purpose 20-20-20 is a versatile, water-soluble fertilizer designed to feed both roots and leaves. Its 20-20-20 balance supports fast green-up and rapid leaf expansion across a wide range of indoor and outdoor plants. This classic formula has long been trusted by professional growers for general-purpose nutrition that works with diverse plant types, from leafy houseplants to vegetable beds.

What it does for your plants

  • Balanced 20-20-20 analysis provides quick green-up and rapid leaf development for many indoor and outdoor plants.
  • Flexible feeding options let you apply as a foliar spray, root feed, or in a continuous feeding system.
  • Water-soluble powder form means a single bag can yield multiple gallons of liquid feed when mixed with water.
  • Includes a measuring spoon to help you mix the right amount for your setup.
  • Micronutrients are added to support nutrition without the need for extra applications in many cases.

How to use

  • Foliar feeding: spray onto leaves to supplement canopy nutrition and encourage steady green color.
  • Root feeding: dissolve and apply to the root zone for systemic uptake through the growing medium.
  • Continuous feed: incorporate into a regular feeding schedule for ongoing plant support.

Practical tips and pairing ideas

Indoors, foliage plants often benefit from steady nourishment to maintain vibrant leaves. In the vegetable garden, this formula can be used as a dependable general feed that works well alongside other Jack’s Classic products, such as Blossom Booster, to emphasize leaf color and overall vigor. While results vary by plant type and growing conditions, many gardeners notice greener foliage and healthier growth with consistent use over time.

Included micronutrients help round out the nutrient profile, reducing the need for frequent reapplication in some setups. The powder form travels further than some liquids, making it a cost-efficient option for growers who want to feed multiple gallons of finished solution from a single bag. Follow the product’s label directions for mixing ratios and application intervals, and adjust based on plant response and growth stage.

What you get

  • Powder fertilizer with 20-20-20 analysis
  • Included measuring spoon for precise dosing
  • Micronutrient enrichment for balanced plant nutrition

Whether you’re caring for indoor houseplants, outdoor beds, or a kitchen garden, Jack's Classic All Purpose 20-20-20 offers a straightforward way to support general plant nutrition without complicated routines. Always monitor plant response and adjust usage as needed to suit your specific plants and environment.

FAQ

Q: What is Jack's Classic All Purpose 20-20-20 used for?

A: A versatile, water-soluble fertilizer that feeds both roots and foliage for indoor and outdoor plants.

Q: How do I apply it?

A: Dissolve the powder in water, then apply as a root soak or foliar spray; includes a measuring spoon.