SKU: 55045851233
plant fertilizer 15 15 15

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

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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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 55045851233

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4.7 ★★★★★
Based on 28 reviews
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Product Reviews
C
Verified Purchase
C. G.
Pawtucket, US
★★★★★ 5
Great investment! It'll save your floors and help train your pup by giving him/her a specific area to pee/potty in the house!!
Color: Blue, Size: 17" x 23", Color: Blue, Size: 17" x 23"
Though my pup sometimes like to pee right at the edge of this puppy pad holder, when he does, he usually just hits the lip of holder. He's a beagle/dachshund mix, and will probably end up around 20lb - he's around 15-ishlb now - so not a tiny dog, but is still a small dog. And with him being "not" tiny/toy, and him being a male, he tends to not aim so well sometimes when he uses it. This made using the PP holder a learning curve for me. I started out using the regular size pads in it , which fit amazing well; however, with Morty's - ahem! - mishaps with aiming, I tried doubling-up on the training pads - would put two of the reg size pads on the holder - and that left just enough pad "hanging" outside of the holder to meet Morty's mishaps in aiming. I was even able to still fasten the holder through the pad, which is awesome! However, using double to pads to cure Mort's lack of ability to aim for the center every time was costly, so I decided to shop around to see if I could find a solution to our aiming whoes. That's when I stumbled upon these pads at Walmart for just under $10 before tax, but they are available to purchase here at Amazon, & it occurred to me that perhaps one XL pad would give Morty that extra allowance he needed, and it could be more affordable to me - it worked! . These particular pads have been working out wonderfully because I continue to use just one pad and still get the overage protection - I'm pretty sure Morty intentionally pees on the edge sometimes - but since they're quite absorbent, it's very rare that he misses so much that he pees "through the pad." [The time he pees through the pad are the times he literally barely even hits the holder/pad at all because like I said, I'm pretty sure he aims for the edge on purpose most of the time.] Since Morty is a beagle/dachshund mix, he is a scent hound, which means that I can never just "let him outside" - I always walk him outside with a leash - because scent hounds follow their noses [pretty sure his nose is more Beagle than Dachshund lol]. And with it being extremely hot out now, I allow him to pee indoors at least 50% of the time; I am absolutely thrilled that he has taken to his wee-wee pad like a pro. All and all I'm very satisfied with this purchase because it has allowed us to have a clearly defined, and mostly contained space within out home for our pup Morty, to go potty in the house, and without ruining our hard floors. Moreover, since the holder itself is plastic, cleaning it up is a breeze! I just spray a bit of Clorox Clean-up on the holder, wipe it and voilà - odor-free home! As an aside; the holder mentions being skid proof, and though I don't doubt the validity in that claim since the feet, which are on the four corners, do have rubber on the bottom, Morty is still a 7-month-old puppy, and sometimes, he can be a bit ornery and play with his pee-pad - which is always fastened inside the holder. And that subsequently allows him to move the holder from it's original spot because he "pulls" it since he's trying to "pull" the pee-pad off. Also, when my daughter and her friends play fetch with him, sometimes they'll throw his tow toward the same area that his holder sits. When that happens, he tends to run across the pad/pad holder and cause it to move. I'm attaching a video to illustrate what I mean. On this particular day Morty was playing by himself with an empty two liter bottle - he loves bottles! On this occasion, his pad/holder is not in it's normal spot - he's actually moved it into the kitchen. Toward the end you can here him baying out the door at someone/thing. I believe it may have been the neighbor lol :) But since the times that Morty is able to move the holder are during times in which his doing it intentionally, I still wouldn't dock it for "not" being skid proof because it clearly is. I just wanted to point this out in case you furry family member is anything like mine, and is full of energy - I don't think there much of anything in my house Morty can move when he has high-energy like that. Also in the video, you can see how the XL pads fit onto the regular size holder, and the extra overage it provides - should you have a dog like Morty who needs a little extra overhang because of his aiming woes. I've also included photos of my pup, Morty. He'd climbed up on the chair for no reason really, but it's another example of his high-energy :)
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Reviewed in the United States on July 22, 2017
E
Verified Purchase
Emily
Battle Creek, US
★★★★★ 5
Does what it says
Color: Dark Gray, Size: 22" x 22"
I was using just a puppy pee pad on the floor, but when my puppy started to become rambunctious....she'd quickly grab it and play with it...shred it and try to eat it. I also noticed that she tended to only want to use the edges of the pee pad majority of the time....so I typically ended up with it on the pee pad and then a puddle next to it. I had to do something. On Amazon I go like always and I found this. Didn't even know this existed. Works beautifully. I've had this for around 2 months now. Fits standard pee pads perfectly. It cleans easily. It doesn't hold in any odor. This does not completely keep my puppy from peeing on the floor. This is not the products fault, she aims towards the edges for whatever reason. If anything, it's helped keep more of it in. The raised edges do seem to encourage her to stay inside of it. We rarely have "accidents" now and no more shredding pee pads. See below. *On another note- she has scratched at the pee pads, like she's digging in the dirt for gold as well as chewed on the plastic a fews times. I was worried I'd have to find another solution. She gets redirected with her chew toys and gets a treat every time she uses it correctly (no chewing or digging). At this time it doesn't seem like it will be an issue that I need to address. She hasn't done it since. So if your dog is determined this will NOT stop them. This product is not indestructible, please know this! It can be chewed on and if determined they can still get to the pee pad. I don't understand why some people rate it poorly when the product is doing what it's "intended" to do. You just have to know your situation and find the best solution you can live with. A dog is going to be a dog. Please address why they are doing what they're doing to begin with. I realized that my pup (*puppies will chew) wasn't getting enough mental stimulation, she's an Aussie. She had physical but not enough mental stimulation. Combine that with making sure we only encourage the wanted behavior and simply dismiss the unwanted behavior. I'm not saying I'm a pro, far from it... nor is everyone's situation the same....I'm just saying don't expect a product to do your job, expect what it says it's intended use is for. :)
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Reviewed in the United States on August 27, 2024
A
Verified Purchase
A. Iacono
Charlottesville, US
★★★★★ 1
NO GO!
Color: Dark Gray, Size: 22" x 22"
I was really hoping this would work, but it did not. The minute I put the tray down with puppy pad secured, my puppy managed to chew and dig at the edges ripping the pad away from the side of the tray and making a huge mess! I am not returning it bc this company makes you take it to UPS which is not convenient for me, so maybe I will donate it. If your puppy is massive chewer this may not be the thing for you.
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Reviewed in the United States on May 2, 2026
T
Verified Purchase
T.H
Phoenix, US
★★★★★ 3
Great idea.
Color: Dark Gray, Size: 22" x 22"
Great concept! Unfortunately, the plastic area underneath the pad area isn’t very thick and flexes. When my dog used it the first time the plastic flexing up and down under her feet frightened her a little bit. I placed a rubber mat between the pee pad and the flimsy plastic and that stopped the plastic from flexing but since it scared my dog from the first use she won’t go back on it.
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Reviewed in the United States on March 17, 2026
K
Verified Purchase
Kimberly B.
West Palm Beach, US
★★★★★ 5
PERFECT PEE PAD HOLDER: AFFORDABLE, EASY TO CLEAN & CHANGE THE PEE PADS, HOLDS PADS IN PLACE
Color: Navy, Size: 22" x 22"
I was THRILLED when we finally received it! I had been everywhere on Amazon & some other sites. I almost bought one that had a small pole since my newly adopted Chihuahua actually lifts his leg, unlike my previous male Chihuahua. But I kept running into a lot of holders that had a plastic "grill" to pee through the pad underneath. It didn't seem like it would be easy to clean. Plus, they were VERY expensive. However, I somehow came across this one. Once I saw the picture, it caught my attention. I watched the video & read more about. The only problem I remember is the video showed one that's foldable & easy to take anywhere with you. But that wasn't the case when we received it. However, I was still very happy with it. The only thing I wasn't crazy about was having to change pee pads because of the size. I changed to Earth Rated because that's what was recommended for this holder. My Chihuahua is around 5 years old & was "housebroken" before I adopted him from a shelter early last year. We live in an apartment on the first floor. But can't always run out the door when he has to go potty. He can wait, but I simply can't drop everything I'm doing to take him outside & I don't want to keep him waiting. He wouldn't really use it at first. But he finally got the hang of it. It's very convenient for him. I bought it primarily because I can't always go outside. Yet, it's perfect when it's raining & neither of you can't go outside, it's great to have when it's not safe to go outside in this area. I bought this around Black Friday week & got it for half its regular price! I'm thinking of getting another one to give him more space (sometimes he misses & accidentally sims for the floor). I've been cleaning it every time the pad needs to be changed. I use Biokleen Bac-Out for Pet Stains & Odors - Lavender Lime scent, which works great, but it's too expensive on Amazon. Also Earth Rated pads don't seem to work well with minimizing odors. I also find it a bit difficult to see if my dog peed because the bottom color is green. But they fit well & have adhesive corners. My dog never chews on the pads. The only problems he has is that he likes to push & pull the pad like dogs do to the grass outside when they finish peeing or pooping. Also, I don't know if the holder we have has non-slip small parts on the corners underneath. So since the floor is laminate & maybe has gotten more slippery from cleaning with the Enzymatic spray cleaner I use, the holder has been slippery lately. In the meantime, I'll try out the 100 pee pad pack sold by Iris, the maker of the holder. The previous pads don't have pads in the right size. I'm referring to Hartz 24 Hour Miracle Pee Pad in Lavender. They're white, but very absorbent & the best part: they help neutralize the odors. I absolutely recommend this pee pad holder! We got the Navy, 22" x 22", which was on a HUGE sale for HALF ITS PRICE! It's too bad I didn't buy two! It's easy to take apart (the top from bottom) to clean. The handles that latch down & the design do a good job of keeping the pads in place. If only I can find pads like Hartz, I wouldn't have to change the pads so much lately. Although I LOVE the Enzymatic cleaner Biokleen Bac - Out for Pet Stain & Odors in Lavender Lime, I'm getting tired from cleaning. But hopefully when it gets warmer here in Florida, it'll get easier again. My dog is really wonderful! I bought this NOT to be lazy, but to give him a happier, more comfortable life. He seems to be happy to have the convenience of the pee pads & enjoys watching me clean!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 18, 2026

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