Greenway Biotech, Inc. Tomato Fertilizer 4-18-38 Powder - Water Soluble with Chelated Micronutrients for Tomatoes Peppers Eggplant - Bigger Fruit Better Flavor - Hydroponics or Soil - 25 LB

Bought this product late December 2017 along with a bag of nitrate and a carton of Epsom Salt. I am growing tomatoes in my little green house here in Orange County, CA. I use Home Depot 5 galleon buckets and fill it with pearlite. So far I am having the best success I have ever had. I am growing winter tomatoes along with Early Girl and am amazed at the amount of tomatoes and the health of the plants. No crunchy brown leaves, I take the companies suggestion to weigh the fertilizer and use,( as per the MPH Gardner formula, which is on Youtube ) 12 grams of the product along with 12 grams of the nitrate and 6 grams of Epsom Salts in 5 galleons of water....which gives you an 19-18-38 NPK. Obviously, I am very pleased and will continue to use the product to grow my veggies.

I have used this for the past few months as a base for all plants in my hydroponic garden. It is easy to mix and completely dissolves without using alot of mixing. As a general nutrient, I add calcium nitrate and magnesium sulfate differently for each plant. PPM / EC results are very predictable and accurate as described on the instructions. My mixes vary from EC 0.8 to 4.5 and I can hit the mark every time. PH does not go wild with this, it usually finished between 5.8 and 6.1 using Reverse Osmosis water. I have to do very little if any adjustments to the PH. Many liquid nutrients required heavy adjustments, not this. The resealable bag is rugged and designed to stand up without tipping or ripping. They do have a bulk option which I just purchased 25 lbs of each, tomato and calcium nitrate. It's the best so far. I grow tomatoes, bell peppers, Lettuce, cucumbers and flowers with this as a base for my hand mixed nutrients. Greenway Biotech is now my vendor for my nutrients. High quality at a reasonable price. You can't beat that.

This stuff works! I have way more fruit than my neighbors and I barely have to use any product. It’s very concentrated. Look at my tomatoes thriving even without optimal weather conditions!

The product arrived quickly and was well protected in transit. We grow tomatoes in our garage year round in a hydroponic system. This fertilizer is dialed in to exactly what tomatoes need to flourish when growing. It is easy to mix with water and has detailed instructions for both soil based and soil-less systems.

Hydroponic culture is quick to show if the nutrients and other care is working. With Dutch Bucket culture of tricky heritage tomatoes, we have seen excellent results...sturdy and healthy plants.

Always happy with this and always get plenty of healthy tomatoes.

Been using this product for 10 years, it works great for hydroponic tomatoes. I used to be able to buy my nutrients in-person at their local HQ, and they were very welcoming to me just walking in. Even their 160lb russian terrier was friendly. But it seems they've relocated and now I'm forced to have it shipped. This is my second order in the last 4 months and both times the packaging was damaged to the point that it was leaking powder through the cardboard box. The bag that they put it in is thin paper, not the thick resealable plastic bags that were suitable for storage.

I use this fertilizer on my roses and clematis as an amendment. It is wonderful. It is loaded with potassium which is what the plants need to produce flowers.