Hydrangea paniculata 'Tardiva'
Common Name(s):
Panicle hydrangea
Tardiva hydrangea
Synonym:
Tardiva panicle hydrangea
Flower:
White
Blooms :
Jul
to:
Sep
Fertile flowers small and not noticeable, sterile flowers have colored sepals that are larger and showy
Botanical Description
Fragrant?
NO
Family:
Hydrangeaceae
Med - Lg Shrub (usually >3' and never < 1.5')
Foliage:
Green
Leaves oval-ovate, dark green above and lighter beneath up to 6" long
Fall Color?
YES
Spent flowers turn pinkish purple
Deciduous
Photo by:
Heading 6
Persistent flowers, structural form
Oregon Native?
NO
West State Native?
NO
Origins:
China, Japan
Site Selection
Minimum USDA Hardiness Zone:
3
Water Needs:
M
Sun Needs:
Partial Sun
Deer Resistant?
NO
Firewise?
NO
Height:
8-12'
Spread:
7-10'
Growth Rate:
Fast
Native Habitat:
Mesic forests, along streams
Soil:
Rich well-drained soils
Care Recommendations
Maintenance Level:
Medium
Fertilizer:
Single application of slow-release organic or rose fertilizer in spring
Mulch:
Pine bark chips, compost or leaf mulch
Prune to maintain height at around 6', give full sun with afternoon shade, prefers consistent water, prune late winter/early spring, apply slow-release fertilizer in spring
Long Term:
Winter:
Should be well-watered before ground freezes,, should have a 2-3" layer of mulch for root protection
Spring:
Prune dead or crossing branches for shape and to encourage large blooms, fertilize, provide consistent moisture, mulch as needed
Summer:
Ensure consistent moisture, in hot climates provide afternoon shade,
Fall:
Ensure plant is well watered, apply 2-3" layer of mulch, do not prune
General Care Comments:
Keep pruned to maintain shape and size
Common Problems
May suffer leaf scortch in hot dry summers if planted in full sun
Diseases:
Bud blight, bacterial wilt, leaf spot, powdery mildew
Insects:
Aphids, spider mite, scale, Japanese beetles
Environmental Problems:
Can self seed if not pruned
Pests:
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