SKU: 55045851233
plant fertilizer 15 15 15

plant fertilizer 15 15 15 Jack's® Nutrients 7-15-30 Finish Fertilizer – Greenhouse Megastore

Sale price$26.45 Regular price$29.39
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Description

plant fertilizer 15 15 15 Jack's® Nutrients 7-15-30 Finish Fertilizer – Greenhouse MegastoreJack's 7 15 30 Finish Fertilizer is a specialized formula designed to support robust flowering, fruiting, and overall plant health, allowing growers to achieve optimal results during the final stages of their crop cycle. With a carefully balanced composition, this nutrient blend offers a low nitrogen content, high phosphorus content, and an abundance of potassium. Nitrogen By emphasizing a low nitrogen content, Finish ensures that plants receive

Jack's® 7-15-30 Finish Fertilizer is a specialized formula designed to support robust flowering, fruiting, and overall plant health, allowing growers to achieve optimal results during the final stages of their crop cycle. With a carefully balanced composition, this nutrient blend offers a low nitrogen content, high phosphorus content, and an abundance of potassium.

Nitrogen
By emphasizing a low nitrogen content, Finish ensures that plants receive minimal amounts of this nutrient. While nitrogen is essential for vegetative growth, excessive nitrogen during the later stages can negatively impact flowering and fruiting. By reducing nitrogen levels, this formula allows plants to shift their energy towards the production of robust blooms and bountiful fruits.

Phosphorus
The high phosphorus content in Finish plays a vital role in supporting flowering and fruit development. Phosphorus is crucial for promoting strong root growth, enhancing nutrient uptake, and stimulating flower formation. By providing ample phosphorus, this formula helps plants develop healthy and vibrant flowers, resulting in improved yields and overall crop quality.

Potassium
A significant amount of potassium, also known as potash, is essential for various plant functions, including the regulation of water uptake, enzyme activation, and overall plant vigor. By providing plants with an abundant supply of potassium, this formula helps them maintain optimal hydration, nutrient balance, and overall resilience throughout the final stages of their growth cycle.

Note: The amount of dye used in Jack’s Nutrients formulas has recently been reduced to nearly zero. As a result, products that were previously bright blue may now appear white or tan. This color change is normal—no other changes have been made to the fertilizer formula or its performance.

Benefits of Jack's® 7-15-30 Finish FeED

  • Specifically formulated for plants in their final stages of growth.
  • Low nitrogen content prevents excessive vegetative growth.
  • High phosphorus content promotes strong root growth and flower formation.
  • Abundant potassium supply for optimal hydration and nutrient balance.
  • Supports robust flowering, fruiting, and overall plant health.
  • Helps plants finish strong and achieve optimal results.
  • Tailored nutrient blend for a successful crop cycle.

Physical and Chemical Properties:

Physical State: Solid
Appearance: Crystals
Color: Light Blue
Odor: Slightly yeasty
Solubility: Highly soluble in water
Relative Density: 55-75 lbs/ft3

Guaranteed Analysis:

Total Nitrogen (N) 7.0%
3.0% Ammoniacal Nitrogen
4.0% Nitrate Nitrogen
Available Phosphate (P₂0) 15.0%
Soluble Potash (K₂0) 30.0%
Magnesium (Mg) 2.0%
2.00% Water Soluble Magnesium (Mg)
Sulfur (S) 9.7%
9.70% Combined Sulfur (S)
Boron (B) 0.2%
Copper (Cu) 0.05%
0.05% Chelated Copper (Cu)
Iron (Fe) 0.07%
0.07% Chelated Iron (Fe)
Manganese (Mn) 0.05%
0.05% Chelated manganese (Mn)
Molybdenum (Mo) 0.002%
Zinc (Zn) 0.05%
0.05% chelated zinc (Zn)

Derived from: Potassium nitrate, monopotassium phosphate, ammonium sulfate, potassium sulfate, magnesium sulfate, iron DTPA, iron EDTA, manganese EDTA, zinc EDTA, copper EDTA, boric acid, ammonium molybdate.
Potential Acidity: 228 lbs. of calcium carbonate equivalent (CCE) per ton.

WARNING: This product contains Molybdenum (Mo) and may be harmful to ruminant animals foraging on crops where applications have been made.

Note: It's important to follow the manufacturer's instructions and guidelines for proper application and dosage based on the specific needs of your plants.


Additional Information

Safety Data Sheet (PDF)
Nutrient Decision Tree (PDF)
Nutrient Schedule for Pure & Simple (PDF)
Nutrient Schedule for City Limits (PDF)
Nutrient Schedule for Jack's 3-2-1 (PDF)
Nutrient Schedule for Outdoor Production (PDF)
Nutrient Schedule for Fruiting Crops (PDF)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 55045851233

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R
R. Heart
Omaha, US
★★★★★ 4
Good companion to a coffee setup
This electric frother is a great companion to have in a kitchen/coffee setup and I've been using it to mix my morning coffee. The frother includes a stand which serves as the charging base and multiple attachments (likely won't really see too much use realistically). My only downside is that the stand situation is a bit lackluster as the wireless charging feature requires you to line up the two pins at the top to the stand and balance the frother. Alternatively the frother also has a USB C charging port (sadly not USB C compliant as it can't be charged via USB c to c). The frother itself cycles between different levels of speed when you press the button and it is pretty strong; being able to very easily swirl and mix large amounts of coffee leaving mine nice and frothy. I've also been using this to mix drink powder mixes to great effectiveness. The other attatchments don't really hold too much value to me (other than maybe the whisk for eggs) but is nice to have other options included. Overall this frother is a massive step up over me using a spoon to stir my coffee.
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Reviewed in the United States on May 21, 2026
U
Uncle Vinny
Pawtucket, US
★★★★★ 5
My coffee is now judging your coffee.
I’m a simple man. All I wanted was decent foam on my morning coffee without paying $7 at Starbucks like a sucker. What I got instead is this charcoal black, LED-equipped, triple-whisk, rocket-powered milk frother that feels like it should have a NASA logo on it. This thing has three speeds and an actual digital battery display. I caught myself staring at the 1% accuracy battery percentage like it was the stock market. “We’re at 87%… we’re still frothing kings today.” The magnetic charging dock is so satisfying it should be illegal. I literally say “goodnight” to it when I put it back on the stand. The spring whisk? Velvety microfoam so perfect my wife asked if I was having an affair with a barista. The balloon whisk made whipped cream so fluffy my kids thought it was a cloud that fell into their hot chocolate. And the hook whisk? Blended my protein shake with zero lumps, a miracle previously only achieved by professional athletes and people with patience. Battery life is ridiculous. I’ve been using it twice a day for two weeks and it’s still at 64%. This frother could survive a zombie apocalypse better than I could. The only real downside? I now judge other people’s coffee foam in public. Saw a sad flat latte the other day and whispered “that man doesn’t own the Dropology frother…” If you like coffee, matcha, hot chocolate, or just feeling like a kitchen god, buy this immediately. It’s the most over-engineered $30-ish gadget I’ve ever loved. 10/10 would froth again.
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Reviewed in the United States on May 22, 2026
S
SusieFun
Alexandria, US
★★★★★ 5
Powerful and I love the charging base and attachments
This is surprisingly more powerful than I thought it would be. It will whip up an egg for scrambled eggs as well as froth your milk. It came with 3 attachments and a charging base. You can charge it using the base or directly in to the frother using the included usbc. I have had battery operated frothers that really weren't that great. This one is blows them all away. I use it mainly to stir my coffee and scramble my eggs and I'm sure I will find many more ways to use it. Its a great value and looks nice on my counter top.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
C
Compelled to write a review
Lexington, US
★★★★★ 3
Can't turn it off quickly. Charging stand falls over easily.
This Electric Milk Frother Handheld: Wireless Starlight Black comes with three stainless steel mixer attachments, a charging cable, and a stand that holds the frother with magnets. The attachments are friction fit, they are easy to change and stay securely in place. The frother has three speeds, the speed changes by pressing the On button. Which is why I deducted one star. The problem is you can not turn the frother off quickly. You have to either cycle through the speeds, or hold the button for 2 seconds. When making a chocolate drink, I could not turn the frother off when my drink was about to spill and it made a mess. I recommend getting a frother with a momentary on off button that you hold down to keep it running and let off to stop it. I removed a second star because the base of the charger is narrow and light making it easy to fall over. It has to be taped to the counter with double sided tape.
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Reviewed in the United States on May 25, 2026
J
JPBIZSPACE
Draper, US
★★★★★ 5
Impressive Power and Convenience Right Out of the Box
I just got this electric milk frother, and after only a few uses I’m already impressed. It has strong, consistent power that turns milk into smooth, velvety foam in seconds — perfect for lattes, cappuccinos, or even mixing matcha. The LED display is a surprisingly premium touch, making it easy to see and switch between speeds. The fact that it’s rechargeable is a huge plus, and the 3‑in‑1 attachments give it more versatility than most handheld frothers. The charcoal black finish looks sleek and modern, and the build feels solid so far. Even with just a handful of uses, it’s clear this frother delivers great performance and convenience. A fantastic little upgrade to any coffee routine — definitely a 5‑star start.
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Reviewed in the United States on May 22, 2026

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