Give compacted soil a hand before the roots have to fight through it. Fast acting gypsum starts working right away to loosen heavy clay and compacted ground. It also helps repair salt-damaged soil. Better air and water penetration gives roots more room to grow.
It comes pelletized, so it spreads clean and easy with a spreader. It adds calcium and sulfur, two nutrients soil needs, and it works on lawns, vegetable gardens, flower beds and ornamental beds. Apply it any time of year, but spring and fall are the best times.
Here is the useful distinction: this gypsum will not affect soil pH. When you want better structure and calcium without moving the acidity, that is the reason to choose it over lime.
Highlights
- Loosens compacted and heavy clay soil
- Improves water penetration and soil structure
- Adds calcium and sulfur
- Will not affect soil pH
- Helps reduce soil loss and improve seed establishment
Why gypsum is the choice for tight ground
Heavy clay and compacted beds are where gypsum earns its place. Clay packs tight after rain and foot traffic, and water sits on the surface instead of soaking in. Gypsum opens the soil so water and roots can move. Sandy soils drain quickly on their own, so a soil test from your county extension office is the best way to decide how much this will help.
It suits the homeowner with a lawn that has gone hard, the vegetable gardener with a bed that crusts over, and the yard with salt-damaged patches. It also fits anyone who wants calcium and sulfur without the pH change that lime brings.
At a glance
| Form | Pelletized granular |
|---|
| Application | Lawns, trees and shrubs, gardens and plants |
|---|
| Calcium sulfate (CaSO4) | 69% |
|---|
| Calcium (Ca) | 19% |
|---|
| Sulfur (S) | 15% |
|---|
| Effect on soil pH | None |
|---|
How to use it
Apply with any spreader, then water it in. Use the rates below for the area you are covering, and split lawn applications across the season rather than putting it all down at once.
| Application | Rate | Frequency |
|---|
| New lawns | 1 lb per 100 sq ft | At installation |
| Lawns | 1 lb per 200 sq ft | Up to 2 times per season |
| Shrubs | 1 cup surrounding base | Feed in spring and fall |
| Vegetable gardens | 1 lb per 100 sq ft | Feed in spring |
| Flower gardens | 1 lb per 100 sq ft | Feed in spring |
For a drop or broadcast spreader, start with the setting from the table below. Test a short strip first, then adjust from there.
| Type | Model | Setting |
|---|
| Drop | Scotts AccuGreen 3000 | 7.0 |
| Broadcast | Scotts Deluxe | 4.0 |
| Broadcast | Spyker 298 | 2.0 |
| Broadcast | Earthway 2050 | 8.0 |
| Broadcast | Agway 7000 | 4.0 |
Good to know
- Measure the area before you open the bag, so you know how much to spread.
- Spring and fall are the best seasons, and lawns can take up to two applications per season.
- Keep the receipt. The guarantee covers performance when the product is used as instructed, and a full refund is available with proof of purchase if you are not satisfied.
- Sweep any gypsum that lands on the driveway, sidewalk or street back onto the lawn or garden.
- Pair it with a spreader and a granular fertilizer for beds that need feeding.
About Hi-Yield
Hi-Yield is a lawn and garden line from Voluntary Purchasing Groups, Inc., a company based in Bonham, Texas. The company's brands, including ferti-lome and Natural Guard, are presented together on one website.
Cautions
KEEP OUT OF REACH OF CHILDREN
CAUTION: SLIPPERY WHEN WET. Keep out of the reach of children. Not for internal consumption. May be harmful if ingested. Eye contact with contents may cause irritation. Flush eyes with water as soon as possible. To prevent staining, avoid contact with clothing and wash hands thoroughly after handling. Dust from product may cause allergic reaction.
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/GARDEN, AND SWEEP ANY PRODUCT THAT LANDS ON THE DRIVEWAY, SIDEWALK, OR STREET, BACK ONTO YOUR LAWN/GARDEN.
Get it on the spreader before the spring push, or work it in this fall for next season.