Hydrangea petiolaris is native to the woodlands of Japan, the Korean peninsula, and on Sakhalin island of easternmost Siberia in the Russian Far East. It grows up trees and rock faces in its native Asian habitats, climbing by means of small aerial roots on the stems.
Hydrangea petiolaris also called as the climbing hydrangea, Hydrangea anomala subsp. petiolaris, is a species of the genus Hydrangea. This species was described by Philipp Franz von Siebold & Joseph Gerhard Zuccarini in 1839.
IDENTIFY HYDRANGEA PETIOLARIS PLANT
Hydrangea petiolaris is native to the woodlands of Japan, the Korean peninsula, and on Sakhalin island of easternmost Siberia in the Russian Far East. It grows up trees and rock faces in its native Asian habitats, climbing by means of small aerial roots on the stems.
The climbing hydrangea is a vigorous woody climbing plant, growing to 20 m height with 2–8 cm, glabrous or pilose petiole and has deciduous, ovate, 4–11 cm long and 3–8 cm broad leaves with a heart-shaped base, coarsely serrated margin and acute apex.
Hydrangea anomala subsp. petiolaris blooms in mid summer from the corymbose cymes inflorescences, to 30 cm wide in fruit, pubescent, apex arcuate. Each corymb includes a small number of peripheral sterile white flowers 2.5-4.5 cm across, and numerous small, off-white fertile flowers 1–2 mm diameter.
HYDRANGEA PETIOLARIS PLANT CARE AND CULTURE
Cultural information should only be used as a guide, and should be to be adapted to suit you. Your physical location; where you grow your plants, how much time you have to devote to their care, and many other factors, will need to be taken into account. Only then can you decide on the cultural methods that best suit you and your plants.
Light:
Hydrangea petiolaris love the warm morning sun, but they dislike the heat of the afternoon (can grow in full sun with adequate soil moisture). The best place to plant this species is in a sheltered location with sunny mornings and shady afternoons. Avoid planting directly underneath trees, which can lead to competition for water and nutrients. Although they can be successfully grown in full shade, they will not bloom well.
Temperature:
Keep the climbing hydrangea in a cool location, from 18° to 24°C. This plant grow well and are reliably winter hardy. Cold winters and late spring frosts can often kill flower buds, preventing plants from blooming in the spring.
Substrate, growing media:
Hydrangea anomala subsp. petiolaris are best planted in soil that has been amended with adequate amounts of organic matter, such as compost, leaf mold, or well-composted manure. While most hydrangeas grow better in soil that is lower in pH (acidic), they will tolerate higher pH soils (alkaline) quite well.
Watering and humidity:
Hydrangea petiolaris prefer consistent moisture but dislike wet feet. Mulch to help conserve moisture and cool the root system. A two- to three-inch layer of mulch will help to conserve moisture.
Fertilizer:
Fertilizing is generally not recommended unless a nutrient deficiency is observed. This plants may need little fertilizer in rich soil with organic matter applied yearly. Avoid using too much nitrogen - this can encourage foliage growth at the expense of blooms.
Pruning:
Hydrangea petiolaris can be left unpruned and only blackened winter-injured tips removed in the spring. Dead or diseased branches can be pruned out at any time of the year.
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