SKU: 27801753224
time release plant fertilizer

time release plant fertilizer ClassiCote with Crystal Green

Sale price$23.15 Regular price$25.72
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

time release plant fertilizer ClassiCote with Crystal GreenYour plants and landscape will get the nutrients they need all season long from Jack's ClassiCote with Crystal Green. This time release fertilizer is now formulated using Crystal Green, a highly pure, crystalline compound with innovative green technology that captures nutrients from wastewater. ClassiCote 15 8 23 feeds your plants in a sustainable earth friendly way utilizing a renewable, slowly available source of phosphorus and magnesium that would

Your plants and landscape will get the nutrients they need all season long from Jack's ClassiCote with Crystal Green. This time-release fertilizer is now formulated using Crystal Green, a highly pure, crystalline compound with innovative green technology that captures nutrients from wastewater. ClassiCote 15-8-23 feeds your plants in a sustainable earth-friendly way utilizing a renewable, slowly available source of phosphorus and magnesium that would otherwise be lost as waste. The controlled-release nutrients are available to the plant in small increments, giving time for absorption instead of washing away.

This plant fertilizer blend with enhanced micronutrients availability provides four months optimal nutrition for strong roots and vital green growth. The balance of 15% nitrogen, 8% phosphate and 23% potash means an NPK ratio of roughly 3-1-2, which is ideal for lawns as well as many plants, shrubs and non-flowering trees. We offer four-gallon shaker jugs of Jack’s ClassiCote Plant Fertilizer for hobby gardeners and large 25-pound bags for landscaping or commercial growing. Follow the simple instructions or call our sales associates to get answers to any questions about this high-quality plant food.

Jack’s ClassiCote Fertilizer 15-8-23 Features:

  • Releases nutrients gradually for up to four months of vigorous growth.
  • Blended with an enhanced micronutrient package which provides optimal nutrition for strong roots and green foliage.
  • NPK (Nitrogen, Phosphate, Potash) of 15-8-23 - approximately a 3-1-2 ratio
  • The roots gradually utilize a controlled release of nutrients that ensures little is lost to the environment.
  • Highest safety factor to prevent burning when applied as directed.
  • Free measuring spoon enclosed for easy and precise application.
  • Resealable tub makes sprinkle applications and outdoor storage convenient.

How to Use

One application feeds up to four months. Just sprinkle as directed evenly on top or mix in the root zone for beautiful plants all season long. Each four-pound jug feeds over 150 containers or a 200 square-foot garden. A detailed instruction pamphlet is enclosed.

Measurements

Garden Plants:
6 cell pack bedding plants - 1/2 tsp. per pot
Quart/gallon transplants - 1 Tbsp. per plant

Indoor House Plants - Pot Size:
1 tsp. for 4" - 2 tsp. for 8" - 1 tbsp for 12-14"

Outdoor Containers - Pot Size:
2 tsp. for 8" - 1.5 tbsp. for 12-14" - 2 tbsp. for 20"

Specifications

Total Nitrogen (N)....................................... 15%
1.8% Ammoniacal Nitrogen
6.3% Nitrate Nitrogen
7.1% Urea Nitrogen
Available Phosphate (P2O5)....................... 8%
Soluble Potash (K2O)................................. 23%
Magnesium (Mg)................................................ 1.3%
0.3% Water Soluble Magnesium (Mg)
Sulfur (S)................................................ 2.4%
2.4% Combined Sulfur (S)
Iron (Fe)...................................................... 0.6%
0.6% Water Soluble Iron (Fe)
Manganese (Mn)......................................... 0.09%
0.09% Water Soluble Manganese (Mn)
Molybdenum (Mo)....................................... 0.0009%
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: 27801753224

Discover Niche Categories That Outsell time release plant fertilizer

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 1917 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
P
Verified Purchase
Primarilus
Charlottesville, US
★★★★★ 1
Shelf is nice, bracing is garbage.
Color: Black, Size: 35.6W x 11.6D x 2H, 2 Pack
Just like all the other reviews, it sags. Regardless of how its mounted to the wall, the bracing itself is weak. Shelf is nice though, definitely would have to get different brackets to make this worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
G
Verified Purchase
Gina R.
Carnegie, US
★★★★★ 3
Decent shelf
Color: Walnut, Size: 35.6W x 11.6D x 2H, 2 Pack, Color: Walnut, Size: 35.6W x 11.6D x 2H, 2 Pack
They look great and come exactly as described. They were super easy to install and came with everything you need. Sizing is exactly as described. For the price they’re all around a great purchase. I bought these to mount under our tv for video game consoles and they are perfect. However, they do not sit well on the wall. There’s only two mounting points when they should definitely have 3. We had to go get a shelf bracket from lowe’s to get it to sit right and not lean forward. So just beware if you want it to sit flush, you’re going to need something additional. Still worth it for the price!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 6, 2026
P
Verified Purchase
Paiger
San Leandro, US
★★★★★ 5
Thanks to Amazon
Color: White, Size: 35.6W x 11.6D x 2H, 2 Pack
Well, one thing I have to say is we got one white shelf and one brown shelf and it did look like the box had been opened. But that being said Amazon was very wonderful and told us to keep it took it off my bill. They didn’t even charge me for it. The assembly was super easy. My husband said it was very easy to install. All he did was paint the brown and white and put it on the wall so we lucked out on that one thank you
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
A
Verified Purchase
Amazon Customer
Lowell, US
★★★★★ 4
Works well with new hardware.
Color: White, Size: 24W x 11.6D x 2H, 2 Pack
The product is good and strong if you install the bracket securely to the wall. Do not use the supplied fasteners for sheet rock. Buy new fasteners at Home Depot that clamp tightly to the sheet rock and everything will be fine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
W
Verified Purchase
Wayne Hawksley
Omaha, US
★★★★★ 5
Black floating shelves
Color: Black, Size: 24W x 11.6D x 2H, 2 Pack, Color: Black, Size: 24W x 11.6D x 2H, 2 Pack
Look nice, not solid wood, but for the price they do the job!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026

recommand products