The Ultimate Guide to Hydrangea Care
Hydrangeas are among the most beloved flowering shrubs in British gardens, renowned for their spectacular blooms and lush foliage. With proper care, these stunning plants can thrive and become the centrepiece of your outdoor space. Here's everything you need to know to keep your hydrangeas looking their best.
Choosing the Right Location
Hydrangeas flourish in dappled shade with some morning sun. While they can tolerate full sun in cooler regions, afternoon shade is essential in warmer areas to prevent scorching. These plants prefer sheltered spots away from strong winds that can damage their delicate flowers.
Soil Requirements
These acid-loving plants thrive in moist, well-drained soil rich in organic matter. The soil pH significantly affects bloom colour in certain varieties:
- Acidic soil (pH below 6): Produces blue flowers
- Alkaline soil (pH above 7): Results in pink blooms
- Neutral soil: Creates purple or mixed-colour flowers
Watering Essentials
Hydrangeas have high water requirements, especially during dry spells. Water deeply at least twice a week, ensuring the soil remains consistently moist but not waterlogged. Mulching with organic matter helps retain moisture and regulate soil temperature.
Pruning Techniques
Pruning requirements vary by hydrangea type:
- Mophead and lacecap varieties: Prune lightly in spring, removing only dead wood and old flower heads
- Paniculata and arborescens types: Can be cut back harder in late winter to early spring
Feeding Your Hydrangeas
Apply a balanced, slow-release fertiliser in early spring. For blue-flowering varieties, use an ericaceous feed to maintain soil acidity. Avoid high-nitrogen fertilisers which promote leaf growth at the expense of flowers.
Winter Protection
In colder regions, protect hydrangeas with a thick layer of mulch around the base. For potted specimens, consider moving them to a sheltered location or wrapping the container with insulating material.
Troubleshooting Common Problems
Watch for these common issues:
- Wilting leaves: Usually indicates underwatering or excessive sun exposure
- Yellowing foliage: May suggest nutrient deficiencies or improper soil pH
- Lack of blooms: Often caused by incorrect pruning or insufficient sunlight
With these expert tips, your hydrangeas will reward you with breathtaking blooms season after season, creating a stunning focal point in your garden.
