Rhododendron — 38 species
Botanical species in the genus Rhododendron recorded in the PlantPeers database.
Rhododendron adamsii
Rhododendron adamsii
Family: Ericaceae
Cultivation
Rhododendron adamsii is native to the cold temperate zone of northern Asia where it can experience winter temperatures down to -30°c or lower. Rhododendron species generally succeed when grown in a non-compacted, humus rich lime free soil and a position with some shade, preferably light woodland shade. They strongly dislike soils of a dry arid nature, heavy soils or clays.
Full cultivation guide →Rhododendron albiflorum
Rhododendron albiflorum
Family: Ericaceae
Cultivation
Rhododendron albiflorum is very cold-hardy, tolerating temperatures down to around -30°c when fully dormant. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Rhododendron species generally succeed when grown in a non-compacted, humus rich lime free soil and a position with some shade, preferably light woodland shade.
Full cultivation guide →Rhododendron anthopogon
Rhododendron anthopogon
Family: Ericaceae
Cultivation
Rhododendron anthopogon is a plant of high elevations in the Himalayas, generally growing well in the temperate zone in areas where winter temperatures do not usually fall below around -15°c. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Succeeds in a most humus-rich lime-free soils except those of a dry arid nature or those that are heavy or clayey.
Full cultivation guide →Rhododendron arboreum
Rhododendron arboreum
Family: Ericaceae
Cultivation
Rhododendron arboreum is moderately cold-hardy, tolerating temperatures down to between -10 and -15°c when fully dormant. The pink flowered form is hardier than the red. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring.
Full cultivation guide →Rhododendron aureum
Rhododendron aureum
Family: Ericaceae
Cultivation
Rhododendron aureum is a very cold-tolerant plant, when fully dormant it can withstand temperatures down to about -40°c. The plant usually comes into growth with the first mild weather in late winter or early spring - although it is very cold-tolerant when dormant, the flowers and young growth are very susceptible to damage by late frosts in regions where these are likely to occur after the new growth has commenced. Succeeds in a most humus-rich lime-free soils except those of a dry arid nature or those that are heavy or clayey.
Full cultivation guide →Rhododendron brachycarpum
Rhododendron brachycarpum
Family: Ericaceae
Cultivation
Rhododendron brachycarpum is a moderately cold-hardy plant, able to tolerate temperatures down to around -20°c when fully dormant. Rhododendron species generally succeed when grown in a non-compacted, humus rich lime free soil and a position with some shade, preferably light woodland shade. They strongly dislike soils of a dry arid nature, heavy soils or clays.
Full cultivation guide →Rhododendron calendulaceum
Rhododendron calendulaceum
Family: Ericaceae
Cultivation
Rhododendron calendulaceum is very cold-hardy, tolerating temperatures down to around -25°c when fully dormant. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Rhododendron species generally succeed when grown in a non-compacted, humus rich lime free soil and a position with some shade, preferably light woodland shade.
Full cultivation guide →Rhododendron campanulatum
Rhododendron campanulatum
Family: Ericaceae
Cultivation
Rhododendron campanulatum is native to higher elevations in the Himalayas, where it can be found at elevations up to 4,400 metres. A moderaely cold-tolerant plant, when fully dormant it can withstand temperatures down to about -25°c. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring.
Full cultivation guide →Rhododendron cinnabarinum
Rhododendron cinnabarinum
Family: Ericaceae
Cultivation
Rhododendron cinnabarinum is native to moderate to high elevations of the Himalayas, where it can be found at elevations up to metres 4,000 metres. A moderately cold-tolerant plant, when fully dormant it can withstand temperatures down to about -20°c. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring.
Full cultivation guide →Rhododendron columbianum
Rhododendron columbianum
Family: Ericaceae
Cultivation
Rhododendron columbianum is hardy to about -15°c. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Requires a lime-free loam or peaty soil.
Full cultivation guide →Rhododendron falconeri
Rhododendron falconeri
Family: Ericaceae
Cultivation
Rhododendron falconeri is native to the temperate zone of, where it can be found at elevations up to metres. It is not a very cold-tolerant plant, when fully dormant it can withstand temperatures down to about -10°c. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring.
Full cultivation guide →Rhododendron ferrugineum
Rhododendron ferrugineum
Family: Ericaceae
Cultivation
Rhododendron ferrugineum is a very cold-tolerant plant, when fully dormant it can withstand temperatures down to about -30°c. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. It grows best in areas with cold winters and summers that are not hot and dry.
Full cultivation guide →Rhododendron fulgens
Rhododendron fulgens
Family: Ericaceae
Cultivation
Rhododendron fulgens is a moderately cold-tolerant plant, when fully dormant it can withstand temperatures down to about -15°c. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Rhododendron species generally succeed when grown in a non-compacted, humus rich lime free soil and a position with some shade, preferably light woodland shade.
Full cultivation guide →Rhododendron griersonianum
Rhododendron griersonianum
Family: Ericaceae
Cultivation
Rhododendron griersonianum can withstand temperatures down to about -10°c when fully dormant. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Succeeds in a most humus-rich lime-free soils except those of a dry arid nature or those that are heavy or clayey.
Full cultivation guide →Rhododendron groenlandicum
Rhododendron groenlandicum
Family: Ericaceae
Cultivation
Rhododendron groenlandicum is hardy to at least -15°c. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Requires a lime-free loam or peaty soil.
Full cultivation guide →Rhododendron hirsutum
Rhododendron hirsutum
Family: Ericaceae
Cultivation
Rhododendron hirsutum is a very cold-tolerant plant, when fully dormant it can withstand temperatures down to about -30°c. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Rhododendron species generally succeed when grown in a non-compacted, humus rich lime free soil and a position with some shade, preferably light woodland shade.
Full cultivation guide →Rhododendron hodgsonii
Rhododendron hodgsonii
Family: Ericaceae
Cultivation
Rhododendron hodgsonii is not a very cold-tolerant plant, when fully dormant it can withstand short periods with temperatures down to about -10°c Although somewhat cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Rhododendron species generally succeed when grown in a non-compacted, humus rich lime free soil and a position with some shade, preferably light woodland shade. They strongly dislike soils of a dry arid nature, heavy soils or clays.
Full cultivation guide →Rhododendron indicum
Rhododendron indicum
Family: Ericaceae
Cultivation
Rhododendron indicum is native to the warm temperate zone of southern Japan, where it can be found at elevations up to 1,100 metres. Somewhat variable in cold-tolerance, when fully dormant that are some forms that can withstand temperatures down to about -20°c. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring.
Full cultivation guide →Rhododendron kaempferi
Rhododendron kaempferi
Family: Ericaceae
Cultivation
Rhododendron kaempferi is a moderately cold-hardy plant, tolerating temperatures down to about -20°c when fully dormant,though it may become deciduous in cold winters. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Succeeds in a most humus-rich lime-free soils except those of a dry arid nature or those that are heavy or clayey.
Full cultivation guide →Rhododendron kesangiae
Rhododendron kesangiae
Family: Ericaceae
Cultivation
Rhododendron kesangiae is native to higher elevations of the temperate zone of,northern India and Bhutan where it can be found at elevations up to 4,000 metres. A moderately cold-tolerant plant, when fully dormant it can withstand temperatures down to about -18°c Although somewhat cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Rhododendron species generally succeed when grown in a non-compacted, humus rich lime free soil and a position with some shade, preferably light woodland shade.
Full cultivation guide →Rhododendron lapponicum
Rhododendron lapponicum
Family: Ericaceae
Cultivation
Rhododendron lapponicum is a very cold-hardy plant, able to tolerate temperatures down to around -40°c when fully dormant. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. The plant rarely does well in milder regions of the temperate zone, it probably requires exceptionally cool, moist conditions and a long period of snow-cover in the winter.
Full cultivation guide →Rhododendron lepidotum
Rhododendron lepidotum
Family: Ericaceae
Cultivation
Rhododendron lepidotum is a very cold-hardy plant, able to tolerate temperatures down to around -30°c when fully dormant. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Rhododendron species generally succeed when grown in a non-compacted, humus rich lime free soil and a position with some shade, preferably light woodland shade.
Full cultivation guide →Rhododendron lowndesii
Rhododendron lowndesii
Family: Ericaceae
Cultivation
Rhododendron lowndesii is native to the higher elevations of the Himalayas, where it can be found at elevations up to 4,500 metres. A moderately cold-tolerant plant, when fully dormant it can withstand temperatures down to about -20°c. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring.
Full cultivation guide →Rhododendron lutescens
Rhododendron lutescens
Family: Ericaceae
Cultivation
Rhododendron lutescens is a somewhat cold-hardy plant, able to tolerate temperatures down to around -8 to -15°c when fully dormant. This is one of the earliest Rhododendron species to come into flower and new growth in the Spring. Although cold-tolerant when dormant, the flowers and young growth are very susceptible to damage by any frosts that occur at this time.
Full cultivation guide →Rhododendron luteum
Rhododendron luteum
Family: Ericaceae
Cultivation
Hardy to about -30°c. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Succeeds in a most humus-rich lime-free soils except those of a dry arid nature or those that are heavy or clayey.
Full cultivation guide →Rhododendron maximum
Rhododendron maximum
Family: Ericaceae
Cultivation
Rhododendron maximum is a very cold-hardy plant, able to tolerate temperatures down to around -30°c when fully dormant. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Succeeds in a most humus-rich lime-free soils except those of a dry arid nature or those that are heavy or clayey.
Full cultivation guide →Rhododendron molle
Rhododendron molle
Family: Ericaceae
Cultivation
Rhododendron molle is a moderately cold-hardy plant, able to tolerate temperatures down to around -10 to -15°c when fully dormant. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Succeeds in a most humus-rich lime-free soils except those of a dry arid nature or those that are heavy or clayey.
Full cultivation guide →Rhododendron molle japonicum
Rhododendron molle japonicum
Family: Ericaceae
Cultivation
Rhododendron molle japonicum is a moderately cold-hardy plant, able to tolerate temperatures down to around -20°c when fully dormant. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Succeeds in a most humus-rich lime-free soils except those of a dry arid nature or those that are heavy or clayey.
Full cultivation guide →Rhododendron mucronulatum
Rhododendron mucronulatum
Family: Ericaceae
Cultivation
Rhododendron mucronulatum is a very cold-hardy plant, able to tolerate temperatures down to around -25°c when fully dormant. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Succeeds in a most humus-rich lime-free soils except those of a dry arid nature or those that are heavy or clayey.
Full cultivation guide →Rhododendron myrtifolium
Rhododendron myrtifolium
Family: Ericaceae
Cultivation
Rhododendron myrtifolium is a very cold-tolerant plant, when fully dormant it can withstand temperatures down to about -25°c. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Rhododendron species generally succeed when grown in a non-compacted, humus rich lime free soil and a position with some shade, preferably light woodland shade.
Full cultivation guide →Rhododendron periclymenoides
Rhododendron periclymenoides
Family: Ericaceae
Cultivation
Rhododendron periclymenoides is a very cold-tolerant plant, when fully dormant it can withstand temperatures down to about -35°c. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Rhododendron species generally succeed when grown in a non-compacted, humus rich lime free soil and a position with some shade, preferably light woodland shade.
Full cultivation guide →Rhododendron ponticum
Rhododendron ponticum
Family: Ericaceae
Cultivation
Rhododendron ponticum is a very cold-tolerant plant, when fully dormant it can withstand temperatures down to about -15°c. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Succeeds in full sun, but is also very tolerant of deep shade, even almost closed canopy conditions do not prevent this species from growing.
Full cultivation guide →Rhododendron schlippenbachii
Rhododendron schlippenbachii
Family: Ericaceae
Cultivation
Rhododendron schlippenbachii is native to the temperate zone in a region where summers are hot and dry whilst the winters can be very cold. It is very cold-tolerant, when fully dormant it can withstand temperatures down to about -30°c, but it requires a clear distinction between the seasons. In areas where there can be mild spells in winter, or cold spells in the spring, it will come into growth with the early warmth only for its flowers and young leaves to be destroyed by any subsequent frost.
Full cultivation guide →Rhododendron setosum
Rhododendron setosum
Family: Ericaceae
Cultivation
Rhododendron setosum is native to higher elevations in the Himalayasf, where it can be found at elevations up to 4,800 metres. A moderately cold-tolerant plant, when fully dormant it can withstand temperatures down to about -20°c. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring.
Full cultivation guide →Rhododendron thomsonii
Rhododendron thomsonii
Family: Ericaceae
Cultivation
Rhododendron thomsonii is a moderately cold-hardy plant, able to tolerate temperatures down to around -20°c when fully dormant. Although cold-tolerant when dormant, the flowers and young growth of this species are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Rhododendron species generally succeed when grown in a non-compacted, humus rich lime free soil and a position with some shade, preferably light woodland shade.
Full cultivation guide →Rhododendron tomentosum
Rhododendron tomentosum
Family: Ericaceae
Cultivation
Rhododendron tomentosum is a moderately cold-hardy plant, able to tolerate temperatures down to around -15°c when fully dormant. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Requires a lime-free loam or peaty soil.
Full cultivation guide →Rhododendron weyrichii
Rhododendron weyrichii
Family: Ericaceae
Cultivation
Rhododendron weyrichii is a moderately cold-hardy plant, able to tolerate temperatures down to around -20°c when fully dormant. Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Rhododendron species generally succeed when grown in a non-compacted, humus rich lime free soil and a position with some shade, preferably light woodland shade.
Full cultivation guide →Rhododendron yedoense
Rhododendron yedoense
Family: Ericaceae
Cultivation
Rhododendron yedoense is native to the temperate zone of Korea, where it can be found at elevations up to1,800 metres. A very cold-tolerant plant, when fully dormant it can withstand temperatures down to about -30°c Although cold-tolerant when dormant, the flowers and young growth of Rhododendrons are very susceptible to damage by late frosts in regions where these are likely to occur after new growth has commenced in the spring. Rhododendron species generally succeed when grown in a non-compacted, humus rich lime free soil and a position with some shade, preferably light woodland shade.
Full cultivation guide →