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pHast-Cal Lime

Fast-Acting Enhanced Calcitic Lime

Quickly raises low soil pH so your lawn can absorb nutrients more efficiently.
  • Raises Soil pH Faster
  • Helps Fertilizer Work Better
  • Enhanced With Humic Acid + Sea Kelp

Apply anytime a soil test shows low pH. Reapply yearly to maintain proper soil pH.

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Product Document

pHast-Cal Lime

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BETTER SOIL STARTS WITH THE RIGHT pH

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Improves Nutrient Uptake

Correcting acidic soil helps your grass use nitrogen, phosphorus, potassium, and other nutrients more efficiently.

Builds Stronger Roots

Added calcium supports healthier root development and helps create better conditions for dense, resilient turf.

Fast-Acting pH Correction

Phast Cal reacts faster than traditional pelletized lime, helping bring acidic soil back toward the proper pH range sooner.

Phast Cal is a fast-acting calcitic lime designed to raise soil pH and improve nutrient availability in acidic soils. By correcting low pH, it helps your lawn make better use of the fertilizer and nutrients already in the soil.

Better soil pH. Better nutrient uptake. Healthier turf.

Why Choose Phast Cal?

  • Raises soil pH faster than traditional pelletized lime.
  • Provides calcium without significantly increasing magnesium.
  • Helps improve nitrogen, phosphorus, and potassium availability.
  • Supports stronger roots and healthier turf.
  • Enhanced with humic acid and sea kelp to support overall soil health.

When to Use Phast Cal

Apply when a soil test shows your soil pH is below the recommended range for your grass type. Phast Cal is especially useful on acidic soils where nutrient availability may be limited even when fertilizer is being applied properly.

Always use a soil test to confirm that lime is needed before applying.

Calcitic Lime

Raises soil pH while supplying calcium without significantly increasing magnesium.

Fast-Acting Formula

Designed to react more quickly than traditional pelletized lime for faster soil pH correction.

2% Humic Acid

Supports soil structure, nutrient availability, and beneficial microbial activity.

1% Sea Kelp

Provides naturally derived compounds that help support nutrient uptake and overall plant vigor.

How To Apply

Simple directions. Professional results.

Application Rate

Maintenance4–5 lb per 1,000 sq ft
Corrective8–10 lb per 1,000 sq ft

Equipment

Broadcast Spreader

When to Apply

Anytime pH needs to be maintained or raised

After Application

Water in to activate

Product resources

Product Information & Resources

Everything you need to understand, apply, and reference this product.

Guaranteed Analysis

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Magnesium (Mg).5%
Calcium (Ca)34%
Calcium Carbonate (CaCO3) 95%Magnesium Carbonate (MgCO3) .9%
Derived From:

Calcitic Limestone

ALSO CONTAINS NONPLANT FOOD INGREDIENTS Soil amending Guaranteed Analysis Active ingredients: 1.00% Sea Kelp Extract (Ascophylium nodosum) 2.00% Humic Acid derived from Leonardite 8.00% Lignin Sulfonate (water soluble binder) Total Other (Inert) Ingredients (as a soil amendment): 89.0% Fertilizer Purpose: May aid in the uptake of micronutrients.

Spreader Settings

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Find the right starting setting for your spreader.

Select your spreader to see the setting.

Use this as a starting point. Calibrate for your spreader, walking speed, and lawn area.

Spreader settings & calibration guide →

Documents & Labels

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Product Label

Frequently Asked Questions

What does Phast Cal do for my lawn?

Phast Cal helps raise low soil pH and improve nutrient availability. When soil is too acidic, your lawn may struggle to use fertilizer properly, even when you are applying the right products.

Can I use Phast Cal before seeding?

Yes, if your soil pH is low. Correcting pH before or around seeding can help create a better environment for new grass establishment.

Should I perform a soil test before applying pHast Cal Lime?

You should perform a soil test to see if your ph needs to be increased. If so, follow the application rate instructions to increase ph. However, pHast Cal is great for just a maintenance application once a year.

What makes this better than regular calcitic lime?

pHast Cal includes bio-stimulants like Sea Kelp and Humic Acid for increased plant uptake of nutrients. The restorative effects of kelp on plants is largely due to high levels of cytokinin, a natural growth hormone that promotes cell division in plants, resulting in root and shoot growth, improved photosynthesis and overall improvement in plant health. All natural bio additives increase the population of soil microbes, which increase nutrient efficiency and build healthier soils that store nutrients for the plant.

When should I apply Phast Cal?

Phast Cal can be applied any time the ground is not frozen, but it is commonly used in spring or fall. Fall is a great time because it gives the soil time to adjust before the next growing season.

What pH should my lawn be?

Most lawns perform best when soil pH is around 6.0 to 7.0, depending on grass type. Tall fescue, Kentucky bluegrass, perennial ryegrass, bermuda, zoysia, and St. Augustine generally perform well in that range.

Will Phast Cal make my lawn greener?

It can help improve color indirectly by making nutrients more available to the grass. If low pH is limiting nutrient uptake, correcting the pH can help your lawn respond better to fertilizer.

Does Phast Cal replace fertilizer?

No. Phast Cal is not a fertilizer replacement. It helps improve soil conditions so fertilizer can work more effectively.

How fast does Phast Cal work?

Phast Cal is designed to react faster than traditional lime, but soil pH changes still take time. Results depend on your soil type, starting pH, application rate, rainfall, and irrigation.

Can I apply Phast Cal with fertilizer?

Yes, lime and fertilizer can be applied within the same timeframe. For best results, water products in and avoid overloading the lawn with too many applications at once.

Customer Reviews

Overall rating: 4.6842103 / 5 from 19 reviews.

AI Generated Review Summary

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Review highlights

Reviews

Working really well. Thanks you

"Working really well. Thanks you guys for all your help. T. Wayne"

— T. S. (5/5)

Seems to have really helped

"Seems to have really helped with grass filling in more. Lusher."

— Sue C. (5/5)

Works awesome!!

"Works awesome!!"

— Jeremy W. (5/5)

Got the PH straight quickly.

"Got the PH straight quickly. Use it every year."

— Joe G. (5/5)

Applied as directed. Watering it

"Applied as directed. Watering it in to improve its effectiveness. Lawn is greener than it was before but it is still very much in early stage of going dormant while Spring like temperatures occur in the Fall."

— Sharon M. (4/5)

Help with yard

"These products were remended"

— Jw M. (5/5)

Help with yard

"These products were remended"

— Jw M. (5/5)

A. I.

"Products are fine. What I don't care for is this A. I. Ask a question and don't get the answer I'm asking."

— Brian M. (4/5)

Feedback

"I signed up for the yearly service. So far I received 2 shipments. They appear to be the same products. Can you confirm this is what I should have received?"

— Anonymous (5/5)

Use of products

"Great!! Grass really took off, but we did have a lot of rain."

— Thomas C. (5/5)

Q&A

Recent soil analysis of the yielded a pH reading of 5.89, which is moderately acidic, clay soil. What expectations should I have in the amount of PH to be raised when applied as instructed? Do I risk going to over the target PH level of 6 - 7? Or would I be better applying Dolomitic Lime?
This is the recommended product for what you are trying to achieve. This product should be applied at 10 lbs. per 1000 sq. ft. to increase the soil PH by 1 point. You could apply the product 8lb. per 1000 if you wish to raise the PH less than 1 point. Dolomitic Lime will serve the same purpose, just over a longer period of time. It will also add magnesium to the soil for a magnesium deficiency as well.
Is it for mostly lawns not food plots correct
It can be used for either crop.
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