Jack's Classic Nutrients Calcium Nitrate Fertilizer 15-0-0 (Part A and B Dual Pack, 4.4 Pounds Total (Pack of 2))

Happy with the purchase..Price wasn't that bad either..It goes a long way ! Jacks formula works wonders for your plants. Can see a noticeable difference in the size and heath ..Formula was simple to mix..Shipping from ebenshades was fast and packaged great..

I now have the healthiest plants that I have ever had. For the price and the control between parts a and b makes this the best fertilizer I have ever used.

We got tired of spending $60 or more for "official" Tower Garden fertilizer so we looked around and found out about Jack's A and B powderized nutrients. Just make sure to mix each independently before combining the two liquids or it will all precipitate out at the bottom of the liquid. I also slightly heated the water on the stove before adding the powders so they would completely dissolve.

These 2 products along with Epson salts at a 321 per gallon rate are excellent for growing cannabis if your in a legal state. The mix is the same veg thru flower and can be mixed up ahead of time. It's also very easy to adjust up or down with the Calcium and salts if you see a deficiency. And it's dirt cheap compared to the multi bottle stuff the industry pushes.

It takes a little bit to dissolve, but seems to be helping the growth.

⭐⭐⭐⭐⭐ Jack's 321 A and B nutrient mix is a game-changer for plant enthusiasts! The 2.2-pound bags are perfect for both small-scale and larger setups, offering incredible value for the price. The formula is easy to mix and provides consistent results, ensuring my plants thrive with lush growth and vibrant health. Whether you're into hydroponics or soil gardening, this product delivers the nutrients your plants need in the perfect balance. Highly recommend it to anyone looking to take their gardening to the next level!

Used for years

Use to use VBX and switched to Jacks. I bought the 2.5 lb bags to try and my only concern was not buying the 25 lb bags.