Strong, productive crops are not built on one product. Plants need different inputs at different points in the season: nitrogen to power early leafy growth, magnesium to keep foliage green, boron to set flowers and fruit, and reliable disease protection running in the background the whole way through. Redox specialty ingredients cover all of that with simple, proven, single-nutrient and single-action products you can match exactly to what your crop needs, when it needs it.
This roundup walks through five Redox products and where each one fits, from sowing to harvest. You will find these and more in our fertilisers Australia collection.
What Are Redox Specialty Ingredients?
Redox is one of Australia's leading raw material and specialty ingredient suppliers, distributing quality chemicals, minerals and nutrients to agriculture, horticulture and industry across the country. Rather than pre-blended, one-size-fits-all mixes, Redox specialty ingredients are focused, high-purity products such as nitrogen and magnesium feeds, boron sources and protectant crop treatments. That gives growers real control: you add the specific nutrient or protection your crop needs at each stage instead of paying for a blend full of things it does not. The five products below are the ones home gardeners and commercial growers reach for most across the growing season.
Redox Sulphate of Ammonia: Best for Fast Leafy Growth & Greener Lawns
Crop stage: early growth & leafy vigour
Redox Sulphate of Ammonia is a high-nitrogen fertiliser that drives fast, lush, leafy green growth, which makes it a go-to at the establishment and vegetative stage. It supplies around 20.5% nitrogen in a fast-acting form the plant takes up quickly, plus roughly 24% sulphur, and together those two nutrients build strong foliage and rich green colour and correct the pale, yellowing leaves that signal a nitrogen or sulphur shortage. It also gradually acidifies soil, so it doubles as a smart pick for alkaline soils and acid-loving plants like azaleas, camellias and blueberries. The granular form spreads easily by hand or spreader, and it comes in sizes from 1kg up to a 25kg bag for larger lawns, veggie patches and regular feeders. Always water in well after applying to move the nutrients into the root zone and prevent leaf scorch.
Redox Epsom Salts: Fix Yellowing Leaves & Boost Green Growth
Crop stage: through growth, for magnesium deficiency
Redox Epsom Salts, or magnesium sulphate, is a fully water-soluble source of magnesium and sulphur, and it is the product to reach for when leaves start yellowing between the veins while the veins stay green. Magnesium sits at the centre of the chlorophyll molecule, so it is essential for photosynthesis and healthy green foliage, and this interveinal yellowing is a classic sign of magnesium deficiency in tomatoes, citrus, roses, palms and potted plants. Because it dissolves completely, it works fast as either a foliar spray or a soil application. It is best used to correct a known or suspected deficiency rather than as a routine feed, so a quick soil or tissue test first is worth the effort, and it comes in 1kg, 2kg, 4kg and 25kg packs. Unlike sulphate of ammonia, it is close to pH neutral, so it feeds magnesium without changing your soil acidity.
Redox Borax Powder: Boron for Flowering & Fruit Set
Crop stage: flowering & fruit set
Boron is a micronutrient that plants need in only tiny amounts, but it plays an outsized role at the reproductive stage, supporting flowering, pollination, fruit set and the movement of sugars through the plant. Redox Borax Powder (sodium tetraborate decahydrate) is the traditional, economical boron source growers have used for generations, and it doubles as a versatile multi-purpose mineral around the home and garden. Because boron is needed in such small quantities and too much can harm plants, it should always be applied carefully and measured to the label or a soil test, never guessed. It is a soft, odourless white powder that dissolves easily in water, and it is available as a large 25kg bag as well as a more manageable 4kg pack for smaller jobs.
Redox Copper Oxychloride: Broad-Spectrum Fungicide for Disease Protection
Crop stage: protection, any stage
Redox Copper Oxychloride is a broad-spectrum protectant fungicide and bactericide containing 500 g/kg copper oxychloride, and it is the disease-protection workhorse that runs alongside your feeding program all season. As a Group M1 multi-site fungicide, it forms a fine protective copper film over the plant surface that stops fungal spores and bacteria before they establish, controlling a long list of problems including peach leaf curl, brown rot, black spot, early and late blight, downy mildew, rust and bacterial leaf spot across fruit trees, citrus, grapes, vegetables, roses and ornamentals. Because it protects rather than cures, timing and thorough coverage matter, so apply it preventatively or at the first sign of disease, cover both leaf surfaces, and reapply after rain. Stick to the label rate, since copper can damage foliage if over-applied, particularly on citrus in cool, wet conditions. It comes in sizes from 1kg to 25kg.
Redox Sulphur Dust: Natural Control for Powdery Mildew & Mites
Crop stage: mildew & mite control, plus soil conditioning
Redox Sulphur Dust Powder is one of the oldest and most trusted natural garden treatments, elemental sulphur in a fine dusting powder that controls fungal diseases like powdery mildew, rust and black spot, along with mites, across a wide range of plants. It works on contact, forming a protective layer on the plant surface that stops fungal spores establishing, so it is best applied early as a preventative before disease sets in, with even coverage over both leaf surfaces. As a natural, non-synthetic option it suits gardeners after a traditional approach, and it has a second job as a soil amendment for lowering pH on alkaline soils. Avoid using it in hot weather above about 30°C or within a few weeks of an oil spray, as sulphur and oil together can burn foliage. It is available in a 4kg pack and a smaller 2kg pack.
How to Choose the Right Redox Product for Each Crop Stage
The simplest way to use these products is to match them to what your crop is doing. At the early, leafy stage, Redox Sulphate of Ammonia drives fast green growth and greener lawns. Through the season, if leaves start yellowing between the veins, Redox Epsom Salts corrects magnesium deficiency and restores healthy colour. As plants move into flowering and fruiting, a carefully measured dose of boron from Redox Borax Powder supports pollination and fruit set. Running alongside all of that, Redox Copper Oxychloride gives broad-spectrum protection against fungal and bacterial disease, while Redox Sulphur Dust handles powdery mildew and mites and helps condition alkaline soils. Feed and protect to the stage, follow the label rates, and you get more out of every product with less waste.
Where to Buy Redox Products in Australia
All five Redox products are available from Bonnyrigg Produce & Garden Supplies, in pack sizes to suit everyone from home gardeners to orchards and commercial growers. Order online for delivery Australia-wide, or pick up in store at 462 Elizabeth Drive, Bonnyrigg NSW 2177. Always read and follow the product label for the rate suited to your crop, and store all products in a cool, dry place away from children and pets.
Why Choose Bonnyrigg Produce & Garden Supplies for Redox Specialty Ingredients
As a family-owned produce and garden store in South-West Sydney, we stock the full Redox range so you can source everything from nitrogen and magnesium feeds to boron, copper and sulphur from the one place. You get genuine Redox products at fair, produce-store prices instead of big-box mark-ups, in bulk bags or smaller packs to match the job. Our staff garden in this climate themselves, so the advice you get is honest and practical, whether you are pushing early growth, fixing a deficiency or protecting a crop through disease season. Match the right Redox specialty ingredient to each crop stage, and your plants get exactly what they need from sowing right through to harvest.
