Slaked lime (also called hydrated lime, chemical formula Ca(OH)₂) is used to raise soil pH when soil is too acidic for healthy plant growth.

• pH adjustment: It can help create a less acidic environment so lawns and garden plants can better access nutrients.
• Calcium source: Provides calcium, which supports strong cell walls and overall vigor.
• Faster action: Compared with standard garden lime (calcium carbonate), hydrated lime typically reacts more quickly.

Good to know: Always follow the package directions, avoid using on acid-loving plants, and consider a soil test to understand how much lime is appropriate. Applying more than needed can reduce nutrient availability. Application timing and watering guidance vary by product, so review the label for the best results and handling tips.

No—slaked lime sold for lawn, garden, or masonry use is not food-grade and should not be ingested.

• Intended use: These products are formulated for soil or construction applications, not for consumption.
• Safety: Hydrated lime is alkaline and can irritate skin, eyes, and the respiratory system. Avoid contact and keep out of reach of children and pets.
• Label first aid: If accidental exposure occurs, follow the first-aid guidance on the package and seek medical attention if needed.

Important: For any culinary or food safety questions, please consult a qualified food safety resource. Always read and follow the product label for safe handling and appropriate uses.

They’re different materials with different uses and handling.

• Calcium carbonate (CaCO₃): Often called agricultural, garden, or lawn lime. It raises soil pH more gradually and is commonly available in pelletized or powdered forms.
• Slaked (hydrated) lime (Ca(OH)₂): More reactive and typically faster-acting, but also more caustic and dusty, so careful handling is important.
• Dolomitic versions: Some carbonates also supply magnesium (dolomitic lime), which can be helpful if soil tests show a magnesium deficiency.

Tip: Choose based on your timeline, soil needs, and application preference. Check the label for coverage rates and spreader settings, and consider a soil test to guide how much to apply.

It depends on your soil needs and how quickly you want to adjust pH.

• Dolomitic lime (carbonate): Contains calcium and magnesium. It typically changes pH more gradually and can help if your soil is low in magnesium.
• Hydrated lime: Reacts more quickly but is more caustic and dusty. It may be chosen when a faster pH shift is desired and you can handle it carefully.
• Ease of use: Pelletized carbonates are generally cleaner to spread with less dust; powdered products may react faster but require more care.

Before buying: Review the label for application rates and safety guidance. A soil test can help you pick the right product and amount for your lawn or garden.

Safe, effective application starts with the label—always follow the directions provided with your product.

1. Prep the area: Apply to a dry lawn when calm (low wind) to minimize dust drift.
2. Protect yourself: Wear gloves, eye protection, and a dust mask, especially with powdered or hydrated lime.
3. Use the right setting: Match spreader settings to the label and walk at a steady pace for even coverage.
4. Clean up: Sweep granules off sidewalks and driveways back onto turf to prevent runoff.
5. Watering: Lightly water in if the label recommends it, and allow dust to settle before kids and pets return.

Store any leftover lime sealed in a dry place to maintain effectiveness.