The hydrangea is a shrub belonging to the saxifragaceous family. The most important species are characterized by inflorescences.
1. Taxonomy and Origin
3. Edaphoclimatic Requirements
5. Growing techniques
6. Pests, illnesses and physiopathology
1. TAXONOMÍA Y ORIGEN
Hydrangea Growing. Photo: Steven Isaacson
[click to enlarge image]
There are two types of flowers:
- Sterile: colourful with petaloid tetramer calyx and located on the periphery of the inflorescence.
- Hermaphrodites: Small size and without ornamental value.
Two types of plants by the number of flower buds:
- Unifloral: A single flower bud.
- Plurifloral: Various flower buds. They can be one or two depending on the required time for flowering.
Las características morfológicas de las especies más cultivadas son:
- H. hortensis (Common Hydrogenea): Compact rounded shrub, native of Japan. It grows between 1.5-2 meters. It has cylindrical and slightly woody stems. It is deciduous and has large leaves with toothed margins. It has sterile flowers with large sepals and clustered in inflorescences..
- H. quercifolia (Hortensia leaves in oak colour) rounded and irregular growth similar to oak leaves. It is native to the northern part of the American continent. The heads of the flowers are initially white but as time progresses, they turn to pinkish colours until they finally turn to brown. The foliage also undergoes changes in colour according to how the fall progresses.
- H. paniculata: It is a large hydrangea (can reach up to six meters high). It comes from East Asia. Its peculiarity is that it has pyramidal heads of flowers with panicles composed of flowers with or without bracts. It has white flowers with pink tones. It flowers between the months of July to October.
- H. arborescens: Shrub with large ovate-lanceolate leaves. It produces large white inflorescences in July.
- H. sargentiana: Inflorescences with fertile flowers in lilac colour and sterile white flowers. Its leaves are dark green on top and light green on the underside. It is coated with abundant fuzz.
3. EDAPHOCLIMATIC REQUIREMENTS
5. GROWING TEHNIQUES
6. PESTS, ILLNESSES AND PHYSIOPATHOLOGY
If you enjoyed this article, please sharing it!
Sign up to our newsletter
© Copyright Infoagro Systems, S.L.