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Hydrangea serrata - (Thunb.)Ser.

Common Name Hydrangea, Mountain Hydrangea, Sawtooth Hydrangea
Family Hydrangeaceae
USDA hardiness 5-9
Known Hazards None known
Habitats Woodland to 1500 metres[184] in the mountains of C. and S. Japan[58].
Range E. Asia - Japan.
Edibility Rating    (2 of 5)
Other Uses    (3 of 5)
Weed Potential No
Medicinal Rating    (0 of 5)
Care (info)
Fully Hardy Moist Soil Semi-shade Full sun
Hydrangea serrata Hydrangea, Mountain Hydrangea, Sawtooth Hydrangea


http://commons.wikimedia.org/wiki/User:Stan_Shebs
Hydrangea serrata Hydrangea, Mountain Hydrangea, Sawtooth Hydrangea
http://commons.wikimedia.org/wiki/User:Stan_Shebs

 

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Summary

Bloom Color: Blue, Pink. Main Bloom Time: Early summer, Early spring, Late summer, Late spring, Mid summer, Mid spring. Form: Rounded.


Physical Characteristics

 icon of manicon of shrub
Hydrangea serrata is a deciduous Shrub growing to 2 m (6ft) by 1 m (3ft 3in) at a medium rate.
See above for USDA hardiness. It is hardy to UK zone 6 and is not frost tender. It is in flower from July to August. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils and can grow in very acid soils.
It can grow in semi-shade (light woodland) or no shade. It prefers moist soil. The plant can tolerates strong winds but not maritime exposure.

UK Hardiness Map US Hardiness Map

Synonyms

H. macrophylla acuminata.

Habitats

Woodland Garden Sunny Edge; Dappled Shade; Shady Edge; Hedge;

Edible Uses

Edible Parts: Leaves  Shoots
Edible Uses:

Young leaves and shoots - cooked[105]. These leaves do not become sweet like those of sspp thunbergii or amagiana or those of H. macrophylla[174].

References   More on Edible Uses

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.


None known

References   More on Medicinal Uses

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Other Uses

Hedge  Hedge

Can be grown as a low hedge[29], it is quite wind tolerant.

Special Uses

Hedge  Hedge

References   More on Other Uses

Cultivation details

Landscape Uses:Container, Seashore, Specimen. Tolerates most soil[200], thriving in a well-drained loamy soil[1], but resenting dryness at the roots[11, 200]. Succeeds in full sun or semi-shade[200], but if it is grown in a low rainfall area then it requires shade at the hottest part of the day[11]. Does well on very acid soils with a pH around 4.5[200]. Tolerates alkaline soils, but it may become chlorotic on shallow soils over chalk[200]. The colour of the flowers reflects the pH of the soil the plant is growing in, the flowers are pink in a neutral to alkaline soil and blue in an acid soil[200]. Plants are hardy to about -25°c when dormant but the young growth in spring can be killed by late frosts. A very ornamental plant, there are many named varieties[182]. Considerable difficulties exist in the nomenclature for this species and H. microphylla. They are treated here in accordance with "Bean's Manual of Trees and Shrubs", though many botanists view H. serrata as no more than a sub-species of H. macrophylla. This species is notably susceptible to honey fungus[200]. Special Features: Not North American native, Blooms are very showy.

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

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Propagation

Seed - surface sow in a greenhouse in spring[113]. Cover the pot with paper until the seed germinates[78]. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Cuttings of half-ripe wood, 8cm long, July/August in a frame. Overwinter in a greenhouse and plant out in late spring[78]. Cuttings of mature wood in late autumn in a frame[200]. Mound layering in spring. Takes 12 months[78]. Leaf-bud cuttings of the current seasons growth in a frame[200].

Other Names

If available other names are mentioned here

Found In

Countries where the plant has been found are listed here if the information is available

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

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Philadelphus purpurascens Shrub4.0 5-9  LMHSNDM001
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Platycrater arguta Shrub1.0 7-10  LMHSM103
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Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

 

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Author

(Thunb.)Ser.

Botanical References

1158200

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