Hydrangea

Hydrangea aspera

Physical Characteristics

Hydrangea aspera is a deciduous Shrub growing to 4 m (13ft) by 4 m (13ft) at a medium rate. See above for USDA hardiness. It is hardy to UK zone 7 and is not frost tender. It is in flower from July to September, and the seeds ripen from September to November. The species is hermaphrodite (has both male and female organs). Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils and can grow in very acid and very alkaline soils. It can grow in semi-shade (light woodland) or no shade. It prefers dry or moist soil.

Distribution

E. Asia - China to the Himalayas.

Habitats

Woodland Garden Sunny Edge; Dappled Shade; Shady Edge;

Edible Uses

Edible Parts: Edible Uses: Tea The leaves are used as a tea substitute[177, 183]. Some caution is advised, see the notes above on toxicity.

Medicinal Uses

None known

Known Hazards

There is a report that the fresh plant contains the toxin hydrogen cyanide[243]. In small quantities, hydrogen cyanide has been shown to stimulate respiration and improve digestion, it is also claimed to be of benefit in the treatment of cancer. In excess, however, it can cause respiratory failure and even death.