MSU Orchid Fertilizer 13-3-15 Reverse Osmosis, Rain, Tap (City) Water Formula 5 Pounds

Very well engineered by the scientists at Michigan State University (MSU). This formula is unique in that it has calcium and magnesium and is urea free, unlike most other fertilizers. Although it was not designed for orchids, it's a wonderful choice for them. I dont think the brand matters so much as the formula. I used to have to find a good urea free product then add calcium and magnesium. This product eliminates that.

I started using the MSU Orchid Fertilizer on my aroids after hearing great things, and it did not disappoint! My plants are thriving and I have much faster growth. It’s incredibly easy to use—just mix, water, and watch the magic happen. The value from this seller is unmatched. You get so much product for the price, and since you only need a small amount, it lasts forever. I’ve tried other fertilizers, but this one is in a league of its own. Whether you’re caring for orchids or other houseplants, especially aroids, this fertilizer is a must-have. It’s my go-to for keeping my collection healthy and happy!

This is a great product to use for hydroponic growing. Mix 2.5 lbs (half the bag) of dry granuals with 1 gallon of distilled water to make a 1 gallon jug of concentrated liquid grow solution. Feeding for hydroponic use is 15ml of concentrate per a gallon of water. Works great.

I've been doing nutrient experiments on aquatic plants for several years and recently started doing experiments on terrestrial plants. One of the main issues with most aquatic plant fertilizers is that the micronutrients contain excessive amounts of iron relative to other metals. The micronutrients in this product is close enough to ideal that I was confident in using it for aquatic plants without worrying about iron toxicity. It's not perfect (there could be slightly higher concentrations of zinc) but it works decently well for aquatic and terrestrial plants. There is a blue dye to the fertilizer but it doesn't appear to cause any issues with aquatic animals.

I just received it a day ago. I have heard it was a very good fertilizer for African violets and Orchids. I will use it and come back and post a updated reveiw.

Works as expected.

This fertilizer works well for me for growing orchids and other plants. Pay attention to the two different formulas. This one is for relatively pure water. The other formula is labeled for "well water", but it is for the MSU well, not necessarily your well. Their well has lots of calcium; if you water does not, then you do not want the well water formula.

I have a greenhouse and this is the proper fertilizer