Available Sizes: 8 lb (14 Cups) | 40 lb (68 Cups) | 1,000 lb (1,700 Cups) | 2,000 lb (3,400 Cups)

(cup quantities are approximate)

Mr. B's Green Trees ALL PURPOSE BOOST 8-8-8


The best of both worlds! A customer favorite for pushing the limits of growth, our Organic/synthetic hybrid formulations start with an organic base, and elevate the NPK with the addition of synthetic fertilizers including Urea and Triple Superphosphate. When you’re looking for that “boost” in your crop and don’t mind the use of synthetics, Mr. B’s Green Trees Boost brings explosive growth and flowering from start to finish.

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Like the organic version, our All Purpose Boost 8-8-8 sets the standard for versatility of use through all stages of plant growth. If there’s only one product you can choose from the entire catalogue, this is one capable of providing the widest array of nutrients for your garden. Practically foolproof in application, this formulation is appreciated by both the novice and master gardener alike.


Save time by calculating exactly how much material you'll need for your garden. For both in-ground and container gardening, calculate your soil and nutrients needs in one easy step! Please note, these are guidelines only. New transplants should receive a reduced top dress application, and larger established gardens may need additional nutrition. Specific needs will vary depending on size, genetics, environmental conditions, etc. Use your best judgement for your garden's needs.
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