Humboldts Secret Monopotassium Phosphate 0-52-34 | MKP Fertilizer Bloom Booster for Flowers, Fruits & Vegetables | High Purity Water Soluble Phosphorus and Potassium Plant Food | 2 lb
Humboldts Secret Monopotassium Phosphate 0-52-34 | MKP Fertilizer Bloom Booster for Flowers, Fruits & Vegetables | High Purity Water Soluble Phosphorus and Potassium Plant Food | 2 lb
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Humboldts Secret Supplies

Humboldts Secret Monopotassium Phosphate 0-52-34 | MKP Fertilizer Bloom Booster for Flowers, Fruits & Vegetables | High Purity Water Soluble Phosphorus and Potassium Plant Food | 2 lb

Humboldts Secret Monopotassium Phosphate 0-52-34 | MKP Fertilizer Bloom Booster for Flowers, Fruits & Vegetables | High Purity Water Soluble Phosphorus and Potassium Plant Food | 2 lbHumboldts Secret High Phosphorus Potassium Bloom Booster Monopotassium Phosphate 0 52 34 Water Soluble Powder 2 lbsHumboldts Secret High Phosphorus Potassium Bloom Booster Monopotassium Phosphate 0 52 34 Water Soluble Powder 5 lbsHumboldts Secret High Phosphorus Potassium Bloom Booster Monopotassium Phosphate 0 52 34 Water Soluble Powder 10 lbsHumboldts Secret Monopotassium Phosphate 0 52 34 MKP Fertilizer Bloom Booster Flowers Fruits Vegetables High Purity Water Soluble Phosphorus Potassiu
Size:2 lbs

Key item features

  • Supports Blooming and Flowering: Our monopotassium phosphate fertilizer contains 34% potassium to help support healthy root development, stronger stems, and improved flowering performance, encouraging vibrant blooms during key growth and flowering stages.
  • Supports Nutrient Uptake: Formulated with high phosphorus and potassium content to help plants absorb and utilize essential nutrients such as potassium and phosphate, supporting balanced plant growth, vitality, and overall performance throughout the growing cycle.
  • Fully Water-Soluble Formula: Dissolves quickly and completely in water for efficient and even nutrient delivery across soil, coco coir, and hydroponic systems, making it easy to apply and suitable for a wide range of growing environments.
  • Promotes Healthy Root Systems: Provides essential phosphorus and potassium to support strong root growth, improved plant structure, and sturdy development, contributing to healthier plants and more consistent flowering results.
  • Easy to Use and Highly Concentrated: Designed for convenient application using watering cans, drip irrigation systems, or foliar spraying, offering a concentrated formula that supports flower and fruit production with simple, flexible feeding methods.
Current price is $47.97
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Columbus, 43215
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4.962264150943396 stars out of 5, based on 53 seller reviews(5.0)
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Showing 1-3 of 15 reviews

Apr 15, 2026
Walmart customer
Top Reviewer
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Size: 2 lbs
Sold and shipped byHS Supplies
5 out of 5 stars review

Verified Purchase

Worth the price!

I used this bloom booster last year for my vegetable garden and was highly impressed. My green beans and tomatoes seemed to grow faster and the tomatoes were endless. I also used them on my hydrangeas that had not bloomed in the past 3 years (I bought them 4 years ago when they had blooms on them, but it never happened again, despite all of the care and attention I thought I was giving). The flowers did bloom last year and were beautiful. the product is expensive, but you only use a teaspoon per gallon, and it immediately dissolves in water. So it does last a long time and is worth it if you want abundant veggies and beautiful flowers. I highly recommend this product!

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Helpful?65J94U3XA8YT16553715684
Apr 15, 2026
Carol
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Item details
Size: 2 lbs
Sold and shipped byHS Supplies
5 out of 5 stars review

Verified Purchase

Great!

Product arrived ahead of time which was nice. Came as advertised. A little goes a long way. I have several trees that I am going to use it on to encourage flowering and hopefully fruit. Came with a scoop ad a a desiccant to keep product dry. There was some clumping prior to opening but it broke up by gently squeezing the bag. Happy with the product!

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Apr 14, 2026
shopper
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Item details
Size: 2 lbs
Sold and shipped byHS Supplies
5 out of 5 stars review

Verified Purchase

foliar spray for heavy producers

This company has a well earned reputation for quality products. I just used this as a foliar spray for my bell pepper plant. I actually grew that plant from seeds, and I’m very careful with it. I wish I could come back and edit my review at a later date to show you both before and after pictures. What I will say is that monopotassium sulfate makes an excellent foliar spray for food producing plants that are heavily producing. As my peppers got bigger, some of the leaves started to turn yellow. This will help. If you use this as a foliar spray and not a root drench, just be careful not to overspray it. It also isn’t a bad idea to make sure that your plant has a good balance of warm sunlight and afternoon shade. You can also use it as a root drench, but it will take longer for you to see results. Don’t use more product than the directions specify. When it comes to fertilizer, especially fuller sprays, more is not necessarily better. this product mixes very well.

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Helpful?65J94U3XA8YT16553715684