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Home/Home & Garden/Home & Garden/Garden/Gardening/Fertilisers & Plant Food/Flower Fertilisers
Hydrangea Colourant 500g Enthusiast Range Enhances Blue Colour in Hydrangeas Easy to Use Garden Formula for Vibrant Blooms (1) — image 1
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Hydrangea Colourant 500g Enthusiast Range Enhances Blue Colour in Hydrangeas Easy to Use Garden Formula for Vibrant Blooms (1)

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About this item
  • Transforms Pink Hydrangeas to Blue & Mauve Shades: Specially formulated to change pink hydrangeas into stunning blue or mauve blooms for a vibrant garden display.
  • Optimized Colour Results by Variety: Pale pink hydrangeas turn blue most effectively, while darker pink varieties develop beautiful mauve or soft blue tones.
  • Dual-Action Colour & Soil Enhancer: Enriched with aluminium and iron sulphates to intensify flower colour while improving soil condition and supporting healthy plant growth.
  • Ideal for Pots, Beds & Borders: Suitable for both potted hydrangeas and outdoor plants, making it a versatile solution for all gardening setups.
  • Works Best in Acidic Soil Conditions: Delivers optimal results in acidic soils; for alkaline soils, simply increase application to achieve desired colour transformation.
  • Easy to Apply & Fast Dissolving: Easily dissolves in hot water and can be mixed into soil or used as a liquid feed for convenient, long-lasting results.
  • Large 500g Pack – Cost-Effective Solution: Generous 500g size treats multiple plants or larger garden areas, offering excellent value for regular use.
  • Flexible Application Method: Use during planting by mixing into soil or dilute and apply weekly during the growing season for continuous colour enhancement.
  • Trusted & Reliable Performance: Proven formula delivers consistent, high-quality results across different hydrangea varieties.
  • Safe Usage Guidelines: Always follow pack instructions. Wear gloves and eye protection, and keep out of reach of children for safe handling.
Product details
Brand
ASA
Manufacturer
ASA
Size
500g
Weight
0.50 kg
Part number
357622

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10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
★★★★★
Excellent
4.5 average rating
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S
Sigalit
🇮🇱 · January 2026
★★★★★

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025
★★★★★

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

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Hydrangea Colourant 500g Enthusiast Range Enhances Blue Colour in Hydrangeas Easy to Use Garden Formula for Vibrant Blooms (1) | Bigamart