Hydrangeas are a genus of hardy deciduous and evergreen shrubs with attractive foliage and large flowers in pink, white or blue. Many cultivars are now available and most are tolerant of part shade.

Hydrangeas have two flowering types; 'Round head' (resembling pom poms) and 'mophead' (resembling an upturned mop).

The colour of the mophead hydrangea flowers are dependant on the soil pH, blue in acidic soil and pink in alkaline soil.

Hydrangea flower

Hydrangea are deciduous or evergreen shrubs, small trees and climbers hydrangeas are commonly grown for their mophead flower arrangements that are known to change colour depending on the soil type. Fully hardy to frost hardy and relatively easy to grow hydrangeas will thrive in almost anywhere in the garden.
Plant in partial shade in a moist but well-drained soil, it is possible to plant in full sun in areas that are slightly cooler. Work organic matter into the soil before initial planting and periodically afterwards, plant in autumn and spring and expect flowers late spring to late autumn. Try to choose a site that is protected from cold winds and do not allow the area to dry out. If using a mophead variety be prepared for a colour change, this is due to the pH of the soil, if you know the pH of your soil prior to purchasing your plants you can choose the colours accordingly.

Gardening Shop UK - Hydrangea

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