envii SeaFeed Xtra – Organic Seaweed Fertiliser, Liquid Outdoor Plant Food Ideal for all Plants, Lawns, Gardens and House Plants, Rich in Additional Nutrients - 1 Litre Makes up to 500L
envii
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Vitax Hydrangea Colourant – Transform Pink Hydrangeas to Blue, Ideal for Acid Soil, Easy-to-Use for Indoor & Outdoor Plants, 2 Pack (500g)
You might also be interested in these hydrangea blue fertiliser.
Amazon Plant Service Hydrangea fertiliser (700g) (200g) – 900 g Bin Plus Hydrangea Blue
Combination pack with 700 g fertiliser plus 200 g alum for blue colouring in extra bag
£ 11.21
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Flower 40570 – Blue Brightener for Hydrangeas, 600 g
Intensifies and sets the Blue Colour Of The Hydrangea
£ 21.63
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Hydrangea Feed – 1L Liquid Plant Fertiliser for Vibrant Blooms & Healthy Growth | Enriched Plant Food for Acid-Loving Shrubs | Ideal for Pots & Borders
AXpower Inspirational Technology Empowering People
£ 12.95
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1L, Hydrangea Liquid Plant Food, Concentrated Feed for Vibrant Blooms & Healthy Growth, Supports Blue & Pink Varieties, Ideal for Garden Shrubs & Containers
SuperGift.com
£ 13.97
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Elixir Gardens® Hydrangea Colourant by Westland | Jumbo 500g Tube
Changes the colour of hydrangea blooms from pink to blue
£ 10.85
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Acid Loving Plant Fertilizer, Enhances Blue Hydrangeas, 14×20cm, Acid Fertilizer, Aluminum Sulfate, Enhanced Soil Amendments, For Home Garden Outdoor Pond Beginner Family Friends
Generic
£ 5.79
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Tech Aluminium Sulphate Hydrangea Azalea Blossom Blue Insulating Salt Flocculant 1 kg
Area of application: hydrangea and azaleas - Use aluminium sulfate to support the blue colouring of flowers and fruits of blueberries, bog beets, azaleas and rhododendrons. Hydrangeas bloom intensely blue below a pH of 4
£ 20.88
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Home Fittings ® Vitax Hydrangea Colourant 250g Changes Pink Hydrangeas to Blue Enhances Blue Colour Soil Acidifier Aluminium Sulphate
Home Fittings
£ 10.95
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Hydrangea Blueing Plant Acidifier - Aluminum Sulfate Soil PH Lowerer For Gardens & Ponds | Turns Hydrangeas Blue, 100g Dilutable Formula For Safe Use
