Hydrangeas are among the most beloved flowering shrubs in British gardens, but many enthusiasts unknowingly sabotage their plants' potential by skipping one vital step before planting.
The Hydrangea Planting Secret
Gardening specialists are urging enthusiasts to test their soil pH before planting these show-stopping shrubs. "It's the difference between mediocre and magnificent blooms," explains horticulturist Michael Perry.
Why Soil pH Matters
The acidity or alkalinity of your soil directly influences hydrangea flower colour:
- Acidic soils (pH below 6): Produce stunning blue blooms
- Alkaline soils (pH above 7): Yield beautiful pink flowers
- Neutral soils: Often create purple shades or a mix of colours
How to Test and Adjust Your Soil
- Purchase a simple pH testing kit from any garden centre
- Take samples from several spots in your planting area
- For bluer flowers: Add aluminium sulphate to acidify soil
- For pinker blooms: Work in garden lime to increase alkalinity
"This simple step takes minutes but affects years of flowering," Perry emphasises. "It's particularly crucial for those planting new hydrangeas this season."
Additional Care Tips
Beyond pH management, experts recommend:
- Choosing a spot with morning sun and afternoon shade
- Ensuring excellent drainage to prevent root rot
- Applying mulch annually to retain moisture
- Pruning at the correct time for your hydrangea variety
With these simple preparations, your hydrangeas can become the envy of the neighbourhood, producing vibrant blooms season after season.
