What is Great White Granular 1 and how does it help plants?
Great White Granular 1 is an organic, single-species mycorrhizal inoculant containing Rhizophagus irregularis. It forms a beneficial relationship with roots, expanding their surface area to improve nutrient uptake, water efficiency, and overall plant vigour.
Is Great White Granular 1 a fertiliser?
No, it's not a fertiliser. It supports nutrient uptake but doesn't supply nutrients directly. You'll still need a complete feeding program or healthy soil to meet your plant's nutritional needs.
What types of plants and systems can I use Great White Granular 1 on?
It works on most plants, including vegetables, herbs, fruit trees, ornamentals, and indoor plants. It performs well in soil, coco, raised beds, and no-till systems. Avoid use with brassicas, which don’t form strong mycorrhizal partnerships. Hydro is less ideal due to its dry format.
How do I apply Great White Granular 1 during transplant?
Sprinkle it directly into the planting hole and around the root ball so the fungi can touch roots immediately. You can also mix it through potting soil before planting or scratch into raised beds near the root zone.
Can I use Great White Granular 1 on established plants?
Yes. Make small holes 5–7 cm deep, spaced about 15 cm apart around the canopy, and add 1 teaspoon per hole. Water in well to move fungi into the root zone where they can colonise effectively.
What’s the best way to use Great White Granular 1 in containers?
Mix 150 g per 50 L of potting mix before planting, or apply around the root zone when repotting. Ensure moisture levels are consistent after application to support colonisation.
Do I need to water after applying Great White Granular 1?
Yes. Watering helps settle the granules into the root zone and creates the moist conditions needed for the fungi to activate and establish effectively.
What growing conditions support best results?
Healthy soil structure, decent aeration, and consistent moisture are ideal. Avoid using in waterlogged or bone-dry soil, and minimise exposure to sterilisers or high-salt nutrient regimes.
Can I use Great White Granular 1 with other products?
Yes. It’s compatible with most organic and synthetic nutrients, composts, and teas. Avoid pairing with sterilising agents like peroxide or systemic fungicides, and don’t use excessive phosphorus which can reduce effectiveness.
How often should I reapply Great White Granular 1?
It doesn't need constant reapplication. One dose at transplant is often enough. Reapply if you disturb roots or refresh soil. Mycorrhizae stay active as long as roots keep growing.
How long does it take to start working?
You’ll usually see signs like faster establishment or perkier growth within 1–3 weeks after application, assuming roots had contact and conditions are suitable.
Can I overdose Great White Granular 1?
You won't burn plants with it, but overuse just wastes product. Correct placement is more important than using more—make sure it contacts the roots directly.
Does Great White Granular 1 expire or go bad?
Yes, eventually. Store sealed in a cool, dry place to preserve viability. Avoid heat and moisture, which degrade the microbes. Refrigeration isn’t required unless your space gets hot.
Is Great White Granular 1 safe around kids and pets?
Yes, when used as directed. Keep out of reach, avoid inhaling the dust, and wash hands after handling like you would with any garden input.
What are the most common mistakes to avoid?
The biggest issues are not placing it near roots, using it in extreme soil conditions, or combining it with harsh chemicals. Mycorrhizae need healthy roots and mild environments to thrive.
