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Unique lime-neutralising formula
Changes pink hydrangeas to blue
Helps produce plants with strong growth and good foliage
Hydrangea macrophylla are famed for their ability to produce different coloured flowers depending on the soil pH (acidity of the soil). In acid soils flowers will be blue, while neutral or alkaline soils will encourage pink flowers.
Hydrangea Colourant contains aluminium sulphate and iron which will increase the acidity of the soil, turning pink flowered varieties to blue.
Simply dissolve 50g into 2.5 litres of water and drench the soil at the base of the plant. Use every month during the growing season for best results.
2 x 100g Packs (KB0193)
1 x 100g Pack (13079)
Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.
Orders for packets of seed incur a delivery charge of £2.99.
Orders which include any other products will incur a delivery charge of £6.99.
Where an order includes both packets of seeds and other products, a maximum delivery charge of £7.99 will apply - regardless of the number of items ordered.
Large items may incur a higher delivery charge - this will be displayed in your shopping basket.
Please see our Delivery page for further details, and more information on different charges that may apply to certain destinations.
For more information on how we send your plants please visit our Helpful Guide on plant sizes.
Maxicrop Original Seaweed Extract
2 Options From£11.99
3 Options From£18.99
IncrediFeed Hanging Basket & Tub Drip Feeder
2 Options From£6.00
2 Options From£12.99
2 Options From£9.49
2 Options From£6.99
incredibloom® and incredcrop® duo
Chempak High Potash Feed - Formula 4
Chempak® Ericaceous Fertiliser
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