Skip to product information
Amvista Sulphate of Potash 25 kg

Sulphate of Potash (SOP) Fertiliser 0-0-50 + 45% SO3 (25kg)

£43.14 Inc VAT £35.95 Ex VAT
SKU: AMVSULPOT25KG
  • Balanced nutrients
  • Suitable for multiple areas
  • Encourages strong growth
  • Easy to apply

This fertiliser (0-0-50) with 45% SO₃ boosts root strength, fruiting and resistance. It is an excellent option for lawns, paddocks and vegetables w...

Availability: In Stock
Maestro Mastercard Paypal Visa

Order by 1pm weekday for next day delivery

Please log in to start unlocking discounts
Product Detail

Amvista Sulphate of Potash (SOP) high strength potassium & sulphur fertiliser.

Contains: 50% Potassium, 45% Sulphur (SO3) with zero Nitrogen and zero Phosphorous

  • Potassium promotes strong cell walls within the plant and leaf
  • Increases ability for plants to cope with stress such as: cold, heat, disease
  • Essential for good flowering and fruiting in vegetable and fruit crops
  • Works in tandem with Magnesium
  • Bonus of Sulphur 45% (SO3) - ideal for grassland, grazing and vegetables
  • Potassium is easily leached from soil after heavy cropping, grazing or excess rainfall
  • Insufficient potassium will affect grass growth in lawns and paddocks
  • Use caution to apply the correct rate depending on the crop

Soil Analysis

Although Sulphate of Potash will address a paddock's fertiliser requirement, we also recommend paddock owners undertake a Paddock Soil Analysis, to measure the exact nutrient content of the soil. This inexpensive, mail-order soils sample test allows our qualified experts to highlight any nutrient over or under supply that affects grass growth or animal health. We often recommend the use of less fertiliser than expected, but instead target a missing nutrient that limits paddock potential.

* Always follow the Usage guide and Aftercare advice

125-175kg per Hectare

15-30g/m2

After applying Sulphate of Potash (SOP) Fertiliser 0-0-50 + 45% SO3, water the area if rain is not expected within 48 hours to help granules dissolve and prevent scorch.

Keep pets off the lawn until the product has been watered in and the surface is dry.

Reapply only according to the recommended feeding schedule.

Orders placed by 1pm Monday to Friday are typically delivered within 3 to 5 working days (express delivery 1 to 2 days).

Mainland UK orders up to 15kg

  • FREE delivery on orders over £50
  • Orders under £50: £5.99
  • Express delivery: £9.99

Orders over 15kg

  • Delivery is calculated by weight and postcode and starts from £9.99
  • Express delivery is available on heavier orders for an additional charge

Click & Collect

FREE same day Click & Collect is available on the majority of our products from our Peterborough head office. Simply call our team on 0330 165 5568 to order and arrange collection.

For full delivery charges, pallet deliveries and delivery regions, view our delivery page.

What is Sulphate of Potash used for?
SOP 25 kg fertiliser (0-0-50) with 45% SO₃ boosts root strength, fruiting, and resistance. Ideal for vegetables, fruit, and sulphur-hungry crops.
How should I use Sulphate of Potash?
Sulphate of Potash should be used in line with the instructions supplied to ensure it performs as intended.
Amvista Sulphate of Potash 25 kg