Mudgee High Grade Dolomite 25kg: Dolomite Lime Soil Conditioner for Gardens, Lawns and Crops

Mudgee High Grade Dolomite: A Natural Soil Conditioner and Dolomite Lime

Mudgee High Grade Dolomite is a natural mineral soil conditioner made from calcium magnesium carbonate, used to raise the pH of acidic soils while supplying the essential nutrients calcium and magnesium. It's a finely ground dolomite lime with a neutralising value of 98%, 24% calcium and 10% magnesium. Mined and produced by Mudgee Dolomite & Lime in Mudgee, NSW, an Australian owned and operated business, it's used across gardens, lawns, orchards and crops. Available in 1kg, 2kg, 4kg and 25kg bags.

What Does Dolomite Do for Soil?

• Raises soil pH: neutralises acidic or "sour" soils, which unlocks nutrients that are held back when soil is too acidic.
• Supplies calcium and magnesium: calcium supports cell walls and root growth, while magnesium is central to chlorophyll and green leaves, helping prevent yellowing between leaf veins.
• Improves soil structure: encourages better crumb structure, drainage and microbial activity in heavy or compacted soils.

Dolomite Lime vs Garden Lime vs Gypsum

• Dolomite lime: raises pH and supplies both calcium and magnesium. Best where soils are acidic and low in magnesium.
• Garden lime (agricultural lime): calcium carbonate that raises pH and supplies calcium only. Better where soils already have plenty of magnesium.
• Gypsum: supplies calcium and helps break up clay, but doesn't change soil pH.

What Plants Need Dolomite Lime?

Dolomite suits plants growing in acidic soils, typically with a pH of 5.5 or lower, including:

• Vegetable gardens, especially brassicas, tomatoes, capsicums, beans and peas
• Lawns on acidic soils, including kikuyu, couch and buffalo
• Stone fruit, citrus and other fruit trees
• General garden beds and pasture

Avoid using dolomite on alkaline soils, or around acid-loving plants such as azaleas, camellias, gardenias, rhododendrons and blueberries.

How Much Dolomite to Apply

Test your soil pH first, then apply to suit. As a general guide:

• General garden beds: about 75 to 150g per square metre
• Heavy clay soils: about 150 to 300g per square metre

Higher rates are for more acidic soils. It's better to apply moderately and retest in a few months than to over-lime, which can lock up iron, manganese and phosphorus.

How to Use Dolomite in the Garden

• Spread dolomite evenly over the soil surface.
• For new beds, mix it into the top 10 to 15cm of soil before planting.
• For established gardens and lawns, apply as a top dressing and water in well.
• Around fruit trees, spread over the root zone out to the drip line.
• Leave a gap of a few weeks between dolomite and ammonium-based fertilisers or fresh manure, as applying them together can cause nitrogen loss.
• Allow time for it to work: pH shifts over weeks to months, and the fine grade helps it react faster.

Why Fine Grade Matters

Mudgee High Grade Dolomite is 100% finer than 0.250mm and 95% finer than 0.150mm. Fine particles have more surface area in contact with the soil, so they react faster and spread more evenly than coarse lime.

Key Features and Benefits

• Natural dolomitic limestone (calcium magnesium carbonate)
• Neutralising value of 98% for effective pH correction
• Supplies about 24% calcium and 10% magnesium
• Finely ground for faster reaction and even spreading
• Improves soil structure, drainage and nutrient availability
• For gardens, lawns, fruit trees, vegetables and crops
• Australian owned and operated, produced in Mudgee NSW
• 1kg, 2kg, 4kg and 25kg bags

Product Details

• Brand: Mudgee Dolomite & Lime (MDL)
• Product: Mudgee High Grade Dolomite
• Neutralising value (NV): 98%
• Calcium carbonate (CaCO₃): 63%
• Magnesium carbonate (MgCO₃): 35%
• Calcium (Ca): 24%
• Magnesium (Mg): 10%
• pH: 9.5
• Fineness: 100% finer than 0.250mm, 95% finer than 0.150mm
• Sizes: 1kg, 2kg, 4kg, 25kg
• Origin: Mudgee, NSW

Frequently Asked Questions

What is Mudgee High Grade Dolomite?

It's a finely ground natural dolomite lime from Mudgee, NSW, with a neutralising value of 98%, 24% calcium and 10% magnesium, used to raise the pH of acidic soils.

What does dolomite do for soil?

It raises soil pH to reduce acidity, supplies calcium and magnesium, and improves soil structure, which helps plants take up nutrients.

What is dolomite lime used for?

Dolomite lime is used to correct acidic soils in gardens, lawns, orchards, vegetable beds and pasture, while adding calcium and magnesium.

Is dolomite good for gardens?

Yes, for gardens with acidic soil. Test your pH first, and avoid using it around acid-loving plants like azaleas, camellias and blueberries.

What plants need dolomite lime?

Vegetables, lawns, fruit trees and most garden plants growing in acidic soil benefit from dolomite. Acid-loving plants don't.

What is the difference between dolomite and garden lime?

Both raise soil pH. Garden lime supplies calcium only, while dolomite supplies calcium and magnesium.

How much dolomite should I use on my lawn?

Test your soil first. As a general guide, around 75 to 150g per square metre for most soils, spread evenly and watered in.

Where can I buy Mudgee High Grade Dolomite in Australia?

Mudgee High Grade Dolomite is available from Bonnyrigg Produce & Garden Supplies at 462 Elizabeth Dr, Bonnyrigg NSW 2177, Australia. You can visit our store or order online with delivery across Australia.