Jack's Classic All Purpose 20-20-20 - 8 Oz

Jack's Classic All Purpose 20-20-20 is a Jack’s Classic general purpose fertilizer for broad, everyday plant nutrition, designed to support fast green-up and steady growth across many plant types. This all-purpose plant fertilizer delivers a balanced 20-20-20 nutrient profile for growers who want one reliable option for general maintenance and consistent results.

All Purpose 20-20-20 is considered the industry standard of general purpose fertilizers by professional growers, which makes it a familiar choice in both hobby and professional settings. It’s built around the core nutrients plants rely on for vigorous, even development, and it’s known for fast green-up when plants need a quick return to a healthier-looking, more vibrant color.

Growth support is also reflected in its rapid leaf expansion, helping plants push fresh foliage and maintain a fuller canopy. Indoors, it is especially effective on foliage plants, where keeping leaves green is often the main goal. That makes it a practical fit for plant collections focused on leaf quality, appearance, and ongoing maintenance rather than a narrow, single-stage focus.

Jack's Classic All Purpose 20-20-20 is suited to indoor and outdoor plants, giving it wide versatility for everyday growing. It’s positioned for a broad range of plant categories, including bedding and container plants, trees and shrubs, vegetables, fruits and turf. This flexibility is helpful when you’re caring for multiple plant types and want a consistent nutrition approach that still supports green growth and active leaf development.

This product is a good fit for growers who want an industry-standard general purpose fertilizer for indoor and outdoor plants, especially when fast green-up, rapid leaf expansion, and keeping leaves green are the priorities.