SKU: 29890748853
alkaline fertilizer for plants

alkaline fertilizer for plants MAG-I-CAL Plus Soil Amendment for Lawn | Lower Soil pH | 18 lb Bag

Sale price$26.93 Regular price$29.92
Save 10%

Pay in installments of $7.48 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

alkaline fertilizer for plants MAG-I-CAL Plus Soil Amendment for Lawn | Lower Soil pH | 18 lb BagMAG I CAL PLUS Soil Food for Lawns in Alkaline & Hard Soil is a product that, with continued use, can LOWER the pH in your soil. One 18 lb Bag covers 5,000 sq ft Analysis is 18% calcium, 17% sulfur Fortified with calcium sulfate dihydrate, humic acid, fast acting gypsum, and humates Great for LOWERING the pH in your soil Product Description: Mag I Cal Plus for Lawns in Alkaline & Hard Soil contains sulfur and calcium sulfate dihydrate, which lowers

MAG-I-CAL® PLUS Soil Food for Lawns in Alkaline & Hard Soil is a product that, with continued use, can LOWER the pH in your soil.

  • One 18 lb Bag covers 5,000 sq ft
  • Analysis is 18% calcium, 17% sulfur
  • Fortified with calcium sulfate dihydrate, humic acid, fast-acting gypsum, and humates
  • Great for LOWERING the pH in your soil

Product Description:
Mag-I-Cal Plus for Lawns in Alkaline & Hard Soil contains sulfur and calcium sulfate dihydrate, which lowers soil pH, is important to cell development, and is vital to many grass plant functions. Poor soil that is hard and compacted is often the problem when it comes to growing a great lawn.

When soil is too alkaline and compacted, air, water, and nutrients cannot get down to the roots, and the grass will not grow properly. Lawns thrive in slightly acidic to neutral soil with pH levels between 6.2 and 7.0. In soils with pH readings of 7.0 to 9.5, weeds thrive, and the grass becomes light green and spindly. Additionally, Mag-I-Cal Plus helps to break up clay and compacted soils. This improves root penetration and promotes growth by increasing biological activity and releasing nutrients trapped in the soil.

**Please Note: This is the product we carry that will help lower your pH. We have a similar product from Jonathan Green that will raise pH. 

Application Information:

Best applied during the growing season when the soil is not frozen. Spread the product on a dry lawn soon after mowing, and for best results, rake the lawn vigorously prior to application. Irrigate the treated area after application for 15-30 minutes. Once watered, wait a day to mow the lawn to give the product time to activate.

This product is safe to apply when you are seeding or sodding and may be used on the following grasses: 

  • Cool-Season Lawns - Kentucky Bluegrass, Turf Type Tall Fescue (all fescues), Ryegrass.
  • Warm-Season Lawns - Bermuda, St Augustine, Zoysia, Centipede, Bahia.
 Coverage

18 lb bag will cover 5,000 sq ft

Application  Details

Apply at 3.6 lbs per 1,000 sq ft of lawn area

For soils with a pH higher than 7, repeat applications twice a year

Water-In  Instructions

Apply to a dry lawn and water into the turf for 15-30 minutes

Sweep excess off sidewalks and driveways to avoid staining

Product Resources:

  • Label/Specs/SDS: Magical Plus Alkaline Info
  • Spreader Settings:  See product package label
  • Package Includes: (1) 18 lb bag
  • Storage: Store in dry conditions away from moisture. Can be stored for up to 2 years.

Shipping Information:

Shipping Costs

Price does NOT include shipping; will be calculated at check out 

NO P.O. Boxes 

State Restrictions

Alaska (AK) and Hawaii (HI)

Stickers

Yes, free stickers with this item

Typical Delivery Time

4 - 7 business days

Product Type

Granular

Cancel | Return | Exchange

All sales are final; no cancellations, returns, or exchanges

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: 29890748853

Discover Niche Categories That Outsell alkaline fertilizer for plants

Top-Converting Item to Boost Your Average Order

4.7 ★★★★★
Based on 12 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
C.L.
Port Orchard, US
★★★★★ 5
Excellent privacy shade.
Color: Coal Black
This delivered on exactly what it promises. So happy with the quality for the value. The shades are a fabric, nylon like, that are attached with a pocket on one end and velcro that adheres around the bar on the other. This was incredibly easy and straightforward to put together. Every piece was clearly labeled, coordinated with the instruction sheet, and fit perfectly. Honestly, I wasn’t planning to leave a review but I was so impressed by how clearly labeled and well explained the instructions were that I felt compelled to note it. Especially for anyone who doesn’t like putting things together, or is used to subpar instructions, this is leagues above the rest. It’s such a simple build anyway, but after buying so many things that barely fit as they should, this stands out. It is lightweight and easy to move. Offers privacy when opened, then can be folded out of the way. It looks exactly as pictured. No complaints, it’s a solid item and worth the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
C
Verified Purchase
Courtney A.
Lexington, US
★★★★★ 5
Decent quality for the price
Color: Grey
Decent quality for the price. Other privacy screens were extremely out of my budget, but this looks and works just fine- I just needed something simple to place behind my couch to hide some clutter. It took me about a half hour to assemble, but it was easy enough. It might be due to my carpeting, but I don't trust that the screen would be stable enough to stand freely without falling. Thankfully my plan all along was to wedge the screen between the couch and a box of clutter anyway, so for me it works as l'd planned!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
M
Verified Purchase
Madi R.
Phoenix, US
★★★★★ 4
Overpriced but effective.
Color: Cream
I happened to get lucky and get a warehouse deal at an additional 30% discount. Even at $25, it feels a little overpriced. But it was easy to assemble and serves its purpose. If you line the Velcro up exactly, the panels sag, if you stretch past even, but where it still grips, they look pretty ok. It is very light and does fold very compact for easy storage.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
S
Verified Purchase
Sunny in AZ
Lowell, US
★★★★★ 5
Great price for a great product
Color: Coal Black
Excellent quality and great price to boot. Easy to assemble and folds up easily to be stored. We are using it as a privacy screen when we have company that needs to sleep on the couch and also to block off a hallway leading to a guest suite. It looks great and is as described in the ad
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 16, 2025
C
Verified Purchase
Carissa L
Port Orchard, US
★★★★★ 1
No.
Color: Coal Black, Color: Coal Black
This was horribly made and a nightmare to put together. You have to basically bend the bars to get the coverings attached. The sizes don't match. The stickers that label the parts are impossible to remove and if you do get them off theres a lot of residue left behind. On top of that once it was put together I noticed theres a big dirty foot print on it which is definitely not mine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2026

recommand products