Miracle-Gro Water Soluble Bloom Booster Flower Food, Plant Food for Annual and Perennial Flowers, In-Ground and Container Plants, Roses, Hydrangeas, Hibiscus, 5.5 lb.

I could see a significant difference in my flowers after using this fertilizer. I noticed larger flowers. Never expected it to work so great. And the price is excellent for the size.

.I would advise to use this item for flowering plants. I used this once so far this season. My flowers have doubled in size and volume,

Lasts, immediately makes my plants happy, healthy, and quickly start to flower! I have a clip inside the box, as there’s no way to seal it shut after opening, but I use this every year and it lasts at least the entire season for an extreme plant enthusiast!

Great stuff! My roses and flowers are huge! It works. Thank you very much. I will be returning.

Works but expensive

Even in Scottsdale AZ desert, this Miracle Gro Bloom Booster is excellent at producing lots of flowers.

My flowers started not flowering , when I added BLOOM BOOSTER , my yard Is back to BEAUTIFUL BLOOMS !

This is one of the very few fertilizers you can buy that has a particularly high level of phosphate and also micronutrients. Don't listen to anyone who tells you that grass doesn't need phosphate, or anything similar. It all depends on whether your soil is or isn't deficient in phosphorous. Some people think that plants need fertilizer even when they are planted in nutrient-rich potting soil. Whether you do or don't need fertilizer, and the particular type of fertilizer you need if you do in fact need fertilizer, depends entirely on what the soil test tells you. If you start using fertilizer without a soil test, you're behaving like people who take all kinds of supplements without having any reason to think that they need supplements. And of course there are plenty of people who imagine that they are in need of some particular type of nutritional supplement when they don't have any evidence to support that. When you apply "general purpose" fertilizer without having the soil tested first, you're doing the same thing. There is only one scenario where I would use fertilizer without first have soil tested. This scenario is when growing hydroponically, which includes growing in a bucket of gravel and sand but no soil per se. In that case I would use some general purpose fertilizer that includes all the micronutrients that plants require. But in all other scenarios, it all depends on what the soil test says. If you have soil tested and the results indicate a deficiency in available phosphate or phosphorous, Bloom Booster is an excellent fertilizer because it contains an unusually high level of phosphate. The same is true for several other brands/labels that tout suitability for blooming plants, but the others might not include micronutrients. The majority of MiracleGro fertilizers include a standard mix of micronutrients. This is a genuine advantage, whereas the water solubility thing is just sort of a hassle. Spraying dissolved fertilizer directly to plant leaves may be marginally useful in specific circumstances, but it also runs the risk of harming the leaves. There's obviously a reason that plants have roots. As for the micronutrients, the MiracleGro fertilizers with their standard mix of micronutrients include most of the micronutrients but not sulfur and not magnesium. If it had had one, it would likely have had the other, given that the most common form of either of these two elements used in fertilizer is magnesium sulphate. I needed magnesium, whereas the sulfur level in my dirt was literally off the chart. So it worked well for me that MiracleGro does not contain sulphur. I had to buy a small amount of magnesium nitrate from another source. I also needed to avoid magnesium hydroxide, because that would have altered the pH, which was already optimal. The bottom line is that if your soil test indicates that your dirt needs more phosphate and needs micronutrients but does not need sulphur, MiracleGro Bloom Booster is exactly what you need, although you may also need to supplement it with a very, very small amount of magnesium nitrate. Or magnesium hydroxide (aka mineral salts) if the pH level of you dirt indicates the need to add some hydroxide or lime.