| Hydrangea serrata | |
|---|---|
| |
| H. serrata | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Cornales |
| Family: | Hydrangeaceae |
| Genus: | Hydrangea |
| Species: | H. serrata
|
| Binomial name | |
| Hydrangea serrata (Thunb.) Ser.
| |
| Synonyms | |
| |
Hydrangea serrata is a species of flowering plant in the family Hydrangeaceae, native to mountainous regions of Korea and Japan. Common names include mountain hydrangea and tea of heaven. Growing to 1.2 m (4 ft) tall and broad, it is a deciduous shrub with oval leaves and panicles of blue and pink flowers in summer and autumn (fall).[1] It is widely cultivated as an attractive ornamental shrub throughout the world in areas with suitable climate and soil.
YouTube Encyclopedic
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Mountain Hydrangea or Lace-cap Hydrangea - Hydrangea serrata - How to grow Hydrangea serrata
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Hydrangea Serrata Lacecap Bluebird 5 gal
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30 Seconds with Tuff Stuff™ Mountain Hydrangea
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Hydrangea macrophylla 'Lacecap'
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"Underused and Unusual Hydrangeas for Gardens"
Transcription
The Mountain Hydrangea. This is Hydrangea serrata, "bluebird". It's native to Eastern Asia, Korea, China & Japan. As it's common name would suggest, in the higher elevations. It's a very hardy plant. Much more hardy than some of the other Hydrangeas that you find. Some of the things like about it; look at this blue, how can you argue? This is called the Lace-Cap type of bloom. There are several different types of hydrangea blooms. This lace cap as you can see is a sort of almost flat-topped cluster, that includes some sterile flowers around the edges and the flowers that produce pollen and later produce seed are the smaller ones in the middle. It's a more delicate flower than the large, rounded - what they call mop, Hydrangeas. Another aspect of this plant that I really like is it stays low. You never have to prune this plant for size, it gets two to four feet in height with a width about the same and it's a very nicely controlled, a civilized plant for the shrub border. In Japan they make a tea out of the leaves. It is called amacha. In Korea they also use this tea. There is a slightly sweet taste to the leaves. It's a very important cultural, iconic value. In fact, they serve this tea especially on Buddha's birthday. Hydrangea serrata can be found by mail order and also in the better nurseries in your area. It likes full sun to partial shad. Really likes afternoon shade to keep it a little cool on the hot Summer days. A well drained, average garden soil is just fine for this plant. This is a very low maintenance, carefree plant. It is not bothered by any pests or diseases. It's very easy to maintain. The pruning is very simple. This plant blooms on last year's wood. So you don't want to prune much of this anyway in the Spring. You want to prune it after it's finished flowering in the late Summer or early Fall. If you prune it at all, what you can do is take off the flower clusters to the last viable leaf junction. I have this plant situated in the shrub border here at Marsh Botanical Garden. This shrub border is obscuring this chain link fence behind me. I have this planted next to a purple leaf smoke tree, Cotinus coggygria, 'purple cloak'. I have paillarded this plant very close to the ground to keep it very small. Ilove the plant combination, this blue and the purple, the chartreuse leaf of the hydrangea. It doesn't even really need to be blooming. In addition, there is a small plant behind the Cotinus that adds a silver element, that's Lamb's Ears, Stachys. Great plant combination.
Taxonomy
Considerable difficulties exist in the nomenclature for H. serrata and closely associated hydrangeas. It is treated here as an individual species in accordance with van Gelderen and van Gelderen.[2] Many botanists, however, view it as no more than a subspecies of H. macrophylla.[3]
Characteristics
Hydrangea serrata is similar to H. macrophylla except it is a smaller more compact shrub with smaller flowers and leaves; it is also more hardy. With a rounded habit, it features dark green, serrated (toothed), ovate leaves to 15 cm (6 in) long, and clusters of long-blooming blue or pink lacy flowerheads in mid- to late summer. Both showy sterile florets and less showy fertile florets appear in each cluster. The flowers are perfect, having both male and female parts; they are insect-pollinated.
Cultivation
Hydrangea serrata is best grown in rich, medium moisture, well-drained soils in partial shade. It tolerates full sun only if grown with consistently moist soils. Soil pH affects the flower color in the same manner as it does with H. macrophylla — namely, bluish in highly acidic soils and lilac to pink in slightly acidic to alkaline soils. Limited colour change can be achieved with pink and blue varieties on neutral soils by the careful use of soil additives.[4] The flowers occur on old wood, and little pruning is needed. It may be pruned after flowering by cutting back flowering stems to a pair of healthy buds. Weak or winter-damaged stems can be pruned in early spring.
It is winter hardy to USDA Zone 6, and it can be grown in USDA Zone 5 with protection (e.g., mulch and burlap wrap). It may lose significant numbers of flower buds or die to the ground in harsh winters, impairing or decimating the bloom for the coming year. Plants are hardy to about −13 °F (−25 °C) when dormant, but the young growth in spring can be killed by late frosts.
Hydrangea serrata makes a good specimen or accent plant for protected locations near homes or patios. It can be grown as a low hedge, and it is quite wind tolerant.
Propagation
Seeds can be surface sown in a greenhouse in spring. When large enough, seedlings may be outplanted into individual pots. Softwood cuttings can be rooted during summer, as can hardwood cuttings during fall and winter. Mound layering can be accomplished in the spring.
Problems
Some susceptibility occurs to honey fungus, bud blight, bacterial wilt, leaf spot, and powdery mildew. Aphids are occasional summer pests.
Cultivars
Numerous cultivars have been selected for garden use, of which the following have gained the Royal Horticultural Society's Award of Garden Merit:-[5]
Other uses
The leaves of mountain hydrangea contain phyllodulcin, a natural sweetener, and are used to make regionally popular herbal teas[2] (sugukcha in Korea and amacha in Japan). Amacha tea is used in Japan in the celebration of Buddha's birth.[citation needed]
Chemistry
Phyllodulcin is an isocoumarin found in H. serrata.[17]
References
- ^ RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 978-1405332965.
- ^ a b C.J. van Gelderen; D.M. van Gelderen. 2004. Encyclopedia of Hydrangeas. Timber Press. 280 p.
- ^ Sandra Reed; Timothy Rinehart. Hydrangea Macrophylla and Serrata - Should We Lump 'em Or Split 'em?
- ^ "Changing the color of hydrangeas". Hydrangeas! hydrangeas!. Retrieved 23 June 2013.
- ^ "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 51. Retrieved 3 March 2018.
- ^ "RHS Plant Selector - Hydrangea serrata 'Bluebird'". Retrieved 6 September 2020.
- ^ "RHS Plant Selector - Hydrangea serrata 'Diadem'". Retrieved 1 August 2020.
- ^ "RHS Plantfinder - Hydrangea serrata 'Grayswood'". Retrieved 7 March 2018.
- ^ "RHS Plantfinder - Hydrangea serrata 'Kiyosumi'". Retrieved 7 March 2018.
- ^ "RHS Plant Selector - Hydrangea serrata 'Miranda'". Retrieved 7 September 2020.
- ^ "RHS Plantfinder - Hydrangea serrata 'Miyama-yae-murasaki'". Retrieved 7 March 2018.
- ^ "RHS Plant Selector - Hydrangea serrata 'Preziosa'". Retrieved 7 September 2020.
- ^ "RHS Plant Selector - Hydrangea serrata 'Rosalba'". Retrieved 7 September 2020.
- ^ "RHS Plantfinder - Hydrangea serrata 'Shirofuji'". Retrieved 7 March 2018.
- ^ "RHS Plantfinder - Hydrangea serrata 'Shojo'". Retrieved 7 March 2018.
- ^ "RHS Plant Selector - Hydrangea serrata 'Tiara'". Retrieved 7 September 2020.
- ^ Accumulation of phyllodulcin in sweet-leaf plants of Hydrangea serrata and its neutrality in the defence against a specialist leafmining herbivore. Mami Ujihara, Masateru Shinozaki and Makoto Kato, Researches on population ecology, Volume 37, Number 2, pp. 249-257, doi:10.1007/BF02515827
External links
- "Hydrangea macrophylla subsp. serrata". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture.
- Plant Guide: Hydrangea serrata (Mountain Hydrangea)
- Plants for a Future: Hydrangea serrata.
- Missouri Botanical Garden: Hydrangea serrata
This page was last edited on 8 May 2022, at 04:53