Brunnings Potash Power 2.5kg
Brunnings Potash Power 2.5kg
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If your tomatoes are all leaf and no fruit, potash is usually the missing piece. This is sulphate of potash, straight potassium with nothing else diluting it.
It pushes flowering and fruiting rather than leaf growth, improves fruit colour and toughens plants up against heat and dry spells. Suits tomatoes, citrus and roses, and anything else you want flowering or fruiting harder. Spread it around the base and water in.
It's concentrated, so a little covers a lot of garden.
Full specs are in the tabs below.

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The technical bits
- Pack size: 2.5kg
- Product: Sulphate of potash (potassium sulphate)
- Boosts: Flowering and fruiting
- Also helps: Hardiness against heat and dry weather
- Suits: Tomatoes, citrus, roses, flowering plants
- Use: Spread around base and water in
- Brand: Brunnings
Why feed potash at fruiting time
- Pushes flowering and fruiting, not just leaf
- Helps plants set more and bigger fruit
- Improves fruit colour and quality
- Toughens plants against heat and dry spells
- A little covers a lot in concentrated form
Shipping and Returns
We pack and send your order with care, right here from our Strathalbyn store. Most parcels leave within 1–2 business days, and you'll get tracking as soon as it's on the way. If you're local, you can choose click-and-collect or our delivery service at checkout.
If something arrives damaged or not quite right, let us know within 14 days and we'll sort it quickly. You can return unused items in their original condition for a refund or store credit. For safety reasons, we can't accept returns on gas bottles, cut materials, or custom orders.
We're here to make things easy, so if you ever have a question about your delivery or a return, our team is only a call away.
Why you'll love shopping with us
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Advice from real gardeners
You’re getting guidance from people who’ve killed plants, learned the hard way, and kept going.
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Products that earn their space
If it doesn’t perform consistently in local gardens, it doesn’t stay on our shelves.
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Chosen for local conditions
Our team gardens here and tests products in real soil, heat, and weather