For soils with a pH over 5.9, use the new lawns rate.
Pay in installments of $5.00 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 15 - Jul 20
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Jonathan Green Mag-I-Cal® for Lawns in Acidic SoilOne bag of Mag I Cal has the pH adjusting power of up to 15 bags of limestone! Rapidly raises and balances low soil pH Stimulates microbial life to create a healthy environment for grass Increases grass roots ability to absorb nutrients Product Overview Adjust your soil with Mag I Cal! Jonathan Green Mag I Cal for Lawns in Acidic Soil helps rapidly raise soil pH that's too low and stimulates healthy microbes in the soil. Healthy, lush lawns thrive in
- One bag of Mag-I-Cal® has the pH adjusting power of up to 15 bags of limestone!
- Rapidly raises and balances low soil pH
- Stimulates microbial life to create a healthy environment for grass
- Increases grass roots ability to absorb nutrients
Product Overview
Adjust your soil with Mag-I-Cal®! Jonathan Green Mag-I-Cal® for Lawns in Acidic Soil helps rapidly raise soil pH that's too low and stimulates healthy microbes in the soil. Healthy, lush lawns thrive in soils with slightly acidic to neutral pH levels ranging from 6.2 to 7.0. When soil pH levels drop between 4.0 to 6.0, this creates an environment for weeds to thrive and grows a lawn full of light green unsightly grass.
Mag-I-Cal® for Lawns in Acidic Soil contains pelletized calcium carbonate, or lime, in a completely soluble form that is immediately available to rapidly and efficiently raise soil pH upwards. Poor soil is often the problem in growing a great lawn and calcium is vital to many grass plant functions. Where it may take several bags of lime to balance low soil pH, Mag-I-Cal® for Lawns in Acidic has the power to do it all in just one easy application!
Additionally, Mag-I-Cal® for Lawns in Acidic contains humates to stimulate beneficial microbes in the soil.
Coverage Guide
Coverage:
| Size |
Established Lawns
|
New Lawns |
| 18 lb | Up to 5,000 sq. ft. | Up to 2,500 sq. ft. |
| 54 lb | Up to 15,000 sq. ft. | Up to 7,500 sq. ft. |
Where to Apply
This product can be applied throughout the United States and performs well on both cool and warm-season lawns.
When to Apply
For cool and warm season lawns, apply in either spring, summer or fall when air temperatures are at least 45°F.
Active Ingredient(s)
Calcium (Derived from: Calcium Carbonate)
Also contains non-plant food ingredients: humic acid (derived from humus), polyhydroxycarboxylic acids (derived from plant extracts).
Use With Other Products
Mag-I-Cal® for Lawns in Acidic Soil contains natural ingredients and can be applied with any of our grass seeds, weed controls, fertilizers, and insect and lawn disease controls.
How Often to Apply
- For a pH of 5.9 to 6.7:
Apply Mag-I-Cal® Plus for Lawns in Acidic & Hard Soil once per year.
- For a pH of 5.9 or below:
Apply Mag-I-Cal® Plus for Lawns in Acidic & Hard Soil twice per year (at least one month apart).
Safe for Children & Pets
Mag-I-Cal® for Lawns in Acidic Soil is a natural product, meaning it is safe for children and pets to re-enter the lawn immediately after application.
Precautions & Proper Handling
- Carefully read all instructions prior to application.
- Store in a cool, dry place away from children and pets.
- Do not ingest. May cause irritation to eyes and skin.
- Wash hands thoroughly with soap and water after handling and before eating or drinking.
- Do not apply near water, storm drains, or drainage ditches.
- Do not apply if heavy rain is expected.
- Apply this product only to your lawn or garden and sweep any product that lands on the driveway, sidewalk or street back onto your lawn or garden.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.6 ★★★★★
Based on 15 reviews
Sort
Product Reviews
★★★★★ 5
High Quality Spirulina at a Great Value
Size: 16 Ounce (Pack of 1)
I’ve been taking spirulina for a few years now, and Micro Ingredients Organic Spirulina Powder has quickly become one of my favorites. The quality is excellent, rich color, fine texture, and no unpleasant odor, which is a good sign of freshness. I really appreciate that it’s organic, non-GMO, gluten-free, and contains no additives. It mixes well into smoothies and juices, and I love that it’s packed with plant-based protein, chlorophyll, and essential vitamins and minerals. For the price and the purity, this is an amazing value. I’ll definitely keep buying it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 6, 2025
★★★★★ 5
Shipped fast
Size: 16 Ounce (Pack of 1)
Just 2 small scoops in water gives vitamins, minerals, and I am not hungry
after drinking it. Tastes good too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
★★★★★ 5
Very Fine, High Quality Spirulina
Size: 16 Ounce (Pack of 1), Size: 16 Ounce (Pack of 1)
Wow, they really vacuum seal these bags! When I received this bag, it was practically brick hard, as if the contents has frozen in there. I was a little nervous about what that might mean for the powder, but after I cut across the top and let some air out, it all changed. The powder was super vivid forest green; and it was soft and fluffy with constant little clouds of powder coming out of the bag. If I just sit here with the bag open, tiny green particles keep flying out on its own. This powder is extremely fine! That's a good thing since the finer the powdern the higher the quality, in most cases.
The brilliant green color is wonderful, and it instantly provides energy and great health benefits. I believe everyone should be taking Spirulina and other natural supplements since the average American diet is way under proper nourishment.
This Spirulina tastes pretty terrible to me, so I blended it with some other healthy powders- moringa, beet, and triphala- to make an awesome superfood health supplement! This way it's easy to take, I can share the wealth, and take in vitamins, minerals, and nutrients that my body needs for energy and proper nourishment. Encapsulating is definitely a good idea for those who simply don't make smoothies for all of their supplements every day, and for those who easily forget or need to take various health supplements. This is a great combo.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 9, 2017
★★★★★ 5
Taste
Size: 16 Ounce (Pack of 1)
Taste is awful. Good product but taste is almost intolerable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
★★★★★ 5
Excellent Translation, Footnotes
Format: Hardcover
Excellent translation, pairs well with the first volume from the Loeb Library. This one has the same translator and editor. The English is a bit "grand" as suits the Greek, but not so archaic or out of step with modern English that it'd give the reader pause. This is a great copy of the Odyssey for folks who want to follow the Greek with a nearby English translation for reference.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 5, 2025