Available Sizes: 8 lb (15 Cups) | 40 lb (75 Cups) | 1,000 lb (1,875 Cups) | 2,000 lb (3,750 Cups)

(cup quantities are approximate)

Mr. B's Green Trees GROWTH BOOST 15-5-5


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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If explosive growth is your goal, this is the product for you. Our Growth Boost 15-5-5 is the jet fuel you need to accelerate vegetative growth to the stratosphere. With over twice the nitrogen of the organic growth product, plants can work double time for verdant, unbridled branching and foliation.


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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