Back to growing guides
H
FlowersHardyPerennial (long-lived)
Hydrangea
Hydrangea is a deciduous flowering shrub grown for large heads or panicles of bloom and bold foliage. Different groups suit different sites, but in general they are valued for long display, generous garden presence and reliable flowering once established.
Basic information
Category
Flowers
Lifecycle
Perennial (long-lived)
Hardiness
Hardy
Planting partners
0 companions · 0 crops to avoid
Growth profile
Plant spacing
180 cm
Row spacing
200 cm
Height
180 cm
Spread
180 cm
Calendar
JJan
FFeb
MMar
AApr
MMay
JJun
JJul
AAug
SSep
OOct
NNov
DDec
Sow Indoors
Sow Outdoors
Plant Out
Flowering / Harvest
Timings based on average frost dates in the UK. Sign up to set your frost dates.
Care tips
Match pruning to the hydrangea type you are growing, because some flower on old wood while others bloom on new growth. Keep roots cool and moist with mulch, water during dry spells, and avoid excessive exposure that scorches leaves or damages flower buds.
Common pests
Aphids, vine weevil in pots, leaf spot, mildew in stress.
Companions
No companion crops have been added yet.
Don’t grow with
No crops to avoid have been added yet.