Potato Fertiliser. NPK 14-14-21 Professional Grade

Professional 14-14-21 Potato Fertiliser for Exceptional Crop Performance

Unlock the full potential of your potato crops with our advanced Potato Fertiliser 14-14-21, expertly formulated to deliver balanced nutrition and dependable results. Whether you’re a dedicated home gardener or a commercial grower, this premium fertiliser provides the essential nutrients potatoes require for vigorous growth, strong roots, and superior tuber formation.

Balanced Nutrition for Strong, Healthy Plants

This specialist blend delivers equal proportions of nitrogen, phosphorus, and potassium—with a boosted potassium level—to support optimal plant development at every stage. The 14-14-21 formula promotes strong foliage, robust roots, and enhanced tuber quality, ensuring your potatoes develop evenly and resist common stress factors.

Key Benefits

Balanced, Slow-Release Nutrition

• Supplies essential nutrients in a carefully balanced ratio to encourage uniform plant health and consistent growth.

Enhanced Tuber Size and Quality

• High potassium content strengthens tuber structure, improves skin finish, and supports a more abundant harvest.

Highly Water-Soluble for Fast Nutrient Uptake

• Ensures nutrients become immediately available, improving absorption and overall plant performance.

Superior Root and Shoot Development

• Ideal for encouraging strong establishment and supporting vigorous top growth.

Product Specifications

• Formulation: NPK 14-14-21

• Nitrogen Type: Ammoniacal for healthy foliage

• Phosphorus Type: Fully soluble to support strong root systems

• Potassium Type: Water-soluble for tuber resilience

• Pack Sizes: 1kg, 2kg, and 5kg options available

How to Apply

• Soil Preparation: Mix 50g per m² into the soil before planting.

• During Planting: Add a small amount into furrows and blend with soil.

• Mid-Season Boost: Side-dress 4–6 weeks after planting to maintain nutrient flow.

Ideal For

Gardeners and growers who require a reliable, high-performance fertiliser that produces consistent and professional-grade results.

Care Instructions

• Storage: Keep sealed in a cool, dry place.

• Application Safety: Avoid direct contact with seeds or young seedlings to prevent nutrient burn.

Looking for more professional-grade garden essentials? Explore our full range of nutrient products on our gardening supplies internal category page.