MaxiGrow - General Hydroponics

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MaxiGroTM is formulated to build strong roots, stems and foliage. It is designed for rapidly growing plants prior to flowering or fruit-set as well as salad greens. Blended with purified water-soluble minerals, MaxiGro includes Calcium, Magnesium and Sulfur, missing in many common plant foods; essential for both plants and people.

The Maxi Series is excellent for hydroponics as well as soil gardening. Use MaxiGro during the growth phase and switch to MaxiBloom during the bloom phase.
Usage: 1 - 2 teaspoons per gallon fresh water.

( 5 - 10 grams per 4 liters fresh water. )
Soil: Apply nutrient once or twice weekly. Use plain water between applications.
Hydroponics: Change nutrient reservoir weekly.
Use mild strength nutrient for delicate plants and full strength nutrient for robust plants.



MaxiGro™ and MaxiBloom™ make up Maxi Series, a duo of standalone, one-part powdered formulas with primary, secondary and micronutrients. Because these dry nutrients are designed to dissolve quickly in water, they’re highly concentrated formulas that are easy to use, easy to store and easy to love. And since Maxi Series™ provides elements essential for proper plant nutrition, it helps grow vigorous plants, strong roots and large flowers for great results.


MaxiGro™ and MaxiBloom™ are each designed to help feed plants what they need in different stages of growth, using only one container at a time. During veg, MaxiGro™’s tailored formula helps encourage growth of seedlings and cuttings, helping provide your plant starts vital nutrition for that crucial time early in development. When it’s time for fruiting and flowering, nutrition is just as easy: Switch to MaxiBloom™. This one-container nutrient helps enhance fruit and flower development and provides nutrients needed for essential oil production and high phosphorus, potassium, magnesium and sulfur.


From high up in the mountains to out back in your backyard, Maxi Series™ makes getting fertilizer where you need it easy. The dry formulas weigh less than liquid options so you can say goodbye to lugging heavy bottles or paying for heavy shipping. Dry means easier to store, too. Just secure the bag and stash it inside, outside or wherever’s most convenient for you, following storage directions. Less space, more possibilities.

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Shipping & Returns

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You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

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When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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