Juniperus — 42 species
Botanical species in the genus Juniperus recorded in the PlantPeers database.
Juniperus ashei
Juniperus ashei
Family: Cupressaceae
Cultivation
Juniperus ashei is a moderately cold-hardy plant, able to tolerate temperatures down to around -15°c when dormant. It is found in a continental climate, with warm summers and cold winters, drier with hotter summers in the south of its range. Succeeds in most soils if they are well drained, preferring a neutral or slightly alkaline soil.
Full cultivation guide →
Juniperus barbadensis
Juniperus barbadensis
Family: Cupressaceae
Cultivation
Juniperus barbadensis is a plant of the moist tropics, it can withstand only occasional, very light frosts with temperatures falling to around zero. Grows best in a fertile, well drained soil and a sunny position. Established plants are very drought tolerant.
Full cultivation guide →
Juniperus bermudiana
Juniperus bermudiana
Family: Cupressaceae
Cultivation
A plant of the subtropical Islands of Bermuda, where the climate is mild and frost-free. It is often grown as an ornamental in the tropics and subtropics, and is also surprisingly successful in the temperate zone. In Britain, for example, as well as succeeding in the mildest regions of the country, it is also being grown successfully at Hillier's Arboretum in Hampshire where winter frosts are common and temperatures can occasionally fall to around -8°c Juniperus bermudiana is grown as an ornamental and timber tree outside its native range.
Full cultivation guide →Juniperus californica
Juniperus californica
Family: Cupressaceae
Cultivation
Juniperus californica is adapted to one of the driest habitats in which Juniperus can still survive well. In much of its range there is a long, dry summer period and rains occur only in winter, in some interior desert valleys rain is erratic and in these areas the junipers may be associated with deeper water sources in alluvial fans. The plant requires hot summers and generally does not thrive in moist climates, even where the winters are mild.
Full cultivation guide →Juniperus cedrus
Juniperus cedrus
Family: Cupressaceae
Cultivation
Although native to the mild climates of the Canary Islands and Madeira, Juniperus cedrus is surprisingly hardy and able to tolerate temperatures down to at least -5°c for short periods. It can be grown outdoors in the milder regions of the temperate zone, with a tree growing more than 10 metres tall at Mount Usher in Ireland. In the Canary Islands this species has become adapted to different habitats.
Full cultivation guide →Juniperus chinensis
Juniperus chinensis
Family: Cupressaceae
Cultivation
Juniperus chinensis is a very cold-hardy plant, able to tolerate temperatures down to around -30°c when dormant. Succeeds in most soils if they are well drained, preferring a neutral or slightly alkaline soil. Succeeds in chalky soils.
Full cultivation guide →Juniperus coahuilensis
Juniperus coahuilensis
Family: Cupressaceae
Cultivation
Juniperus coahuilensis is a plant of the high desert. Requires a sunny position, growing mainly on dry, well-drained soils in the wild, often rocky or poor. Roseberry juniper is unusual in that it sprouts from the stump after burning or cutting.
Full cultivation guide →Juniperus communis
Juniperus communis
Family: Cupressaceae
Cultivation
Juniperus communis is a very cold-hardy plant, able to tolerate temperatures down to around -40°c when fully dormant. However, although the fully dormant plant is very cold-tolerant, the young growth in spring can be damaged by late frosts. An easily grown plant, it succeeds in hot dry soils and in poor soils.
Full cultivation guide →Juniperus deppeana
Juniperus deppeana
Family: Cupressaceae
Cultivation
Juniperus deppeana is not a very cold-hardy plant, able to tolerate short-lived temperatures down to around -8°c when fully dormant. It is native to semi-arid and sub-humid areas where mean annual rainfall is around 300 - 560mm; growing well in regions with hot, dry summers and able to withstand winter frost well. It does not do well in moist or cool climates, even if the winters are mild.
Full cultivation guide →Juniperus drupacea
Juniperus drupacea
Family: Cupressaceae
Cultivation
Juniperus drupacea is a moderately cold-hardy plant, able to tolerate temperatures down to around -15°c when fully dormant. Requires a sunny position. Succeeds in dry soils, tolerating drought once it is established.
Full cultivation guide →Juniperus excelsa
Juniperus excelsa
Family: Cupressaceae
Cultivation
Juniperus excelsa is found mainly in the continental climate of western Asia with hot, dry summers and moderately cold winters. It grows mainly in regions where the mean annual precipitation is within the range 500 - 1,000mm. It is a moderately cold-hardy plant, able to tolerate temperatures down to around -20°c for short periods when dormant.
Full cultivation guide →Juniperus flaccida
Juniperus flaccida
Family: Cupressaceae
Cultivation
Juniperus flaccida grows mainly in regions with hot summers, mild winters and low to medium rainfall. Where it grows in the Chisos Mountains of Mexico, for example, mean annual precipitation ranges from 220 - 680mm, with most falling in the warmer part of the year; temperatures rarely fall as low as freezing; and summer temperatures routinely exceed 40°c. It succeeds outdoors in the milder regions of the temperate zone, where it has been known to tolerate short-lived temperatures down to around -8°c, and has been grown outdoors successfully in the moister, maritime climate of southwestern England.
Full cultivation guide →Juniperus foetidissima
Juniperus foetidissima
Family: Cupressaceae
Cultivation
Juniperus foetidissima is native to hot, dry summer regions from the Mediterranean region with its mild, moist winters, with transitions to more continental interior regions where winters are drier and colder. The plant is known to tolerate short-lived temperatures down to around -8°c in cultivation. The mean annual precipitation within its native range can vary from 400 - 1,000mm.
Full cultivation guide →Juniperus horizontalis
Juniperus horizontalis
Family: Cupressaceae
Cultivation
Juniperus horizontalis is a very cold-hardy plant, able to tolerate temperatures down to around -30°c when fully dormant. It occurs in areas with continental climates that are typically dry and often experience great annual and diurnal temperature variations. Succeeds in a sunny position in most soils so long as they are well drained, preferring a neutral or slightly alkaline soil and succeeding on chalk.
Full cultivation guide →Juniperus indica
Juniperus indica
Family: Cupressaceae
Cultivation
Juniperus indica is a moderately cold-hardy plant, able to tolerate temperatures down to around -20°c when fully dormant. The climate where it grows is high montane to alpine with a pronounced monsoon phase delivering heavy precipitation (much as snow) from May to October (Spring to early winter). Requires a sunny position in a well-drained soil.
Full cultivation guide →Juniperus komarovii
Juniperus komarovii
Family: Cupressaceae
Cultivation
Juniperus komarovii is a moderately cold-hardy plant, able to tolerate temperatures down to around -20°c when fully dormant.
Full cultivation guide →Juniperus monosperma
Juniperus monosperma
Family: Cupressaceae
Cultivation
Juniperus monosperma is native to a semi-arid, continental climate, with hot summers and cold winters. Most rainfall arrives in the summer with erratic and local storms from the Gulf of Mexico. Mean annual rainfall in Arizona is around 250 - 380mm and the growing season is around 120 days.
Full cultivation guide →Juniperus monticola
Juniperus monticola
Family: Cupressaceae
Cultivation
Juniperus monticola is a moderately cold-hardy plant, able to tolerate temperatures down to around -15°c when fully dormant. Despite high precipitation on the mountains where this plant grows, the environment is decidedly xeric due to the porosity of volcanic substrates, but snowmelt may provide a relatively reliable, slow-release moisture source in spring and early summer. Requires a sunny position.
Full cultivation guide →Juniperus occidentalis
Juniperus occidentalis
Family: Cupressaceae
Cultivation
Juniperus occidentalis is a very cold-hardy plant, able to tolerate temperatures down to around -25°c when fully dormant. The climate in its native range varies from semi-arid in the rain shadow of the Cascades (with an annual precipitation from 150 - 450mm) in the north to mesic in the Sierras, with precipitation mostly in the form of winter snow. Succeeds in most soils, including chalk, so long as they are well drained, preferring a neutral or slightly alkaline soil.
Full cultivation guide →Juniperus osteosperma
Juniperus osteosperma
Family: Cupressaceae
Cultivation
Juniperus osteosperma is a very cold-hardy plant, able to tolerate temperatures down to around -25°c when fully dormant. It is native to higher elevations and semi-arid to arid, continental climates with hot, dry summers. Mean annual precipitation is usually within the range 300 - 450mm, with extremes from 250 - 500mm.
Full cultivation guide →Juniperus oxycedrus
Juniperus oxycedrus
Family: Cupressaceae
Cultivation
Juniperus oxycedrus is largely restricted to regions with a Mediterranean climate, but in the Balkans and the Iberian Peninsula it may occur in more continental conditions. It requires warm to hot summers in order to thrive and dislikes moist to wet climates. The subspecies badia and oxycedrus are tolerant of frost, unlike the subspecies macrocarpa and transtagana, and have been known to survive temperatures falling to around -15°c for short periods.
Full cultivation guide →Juniperus phoenicea
Juniperus phoenicea
Family: Cupressaceae
Cultivation
Juniperus phoenicea is not a very cold-hardy plant, able to tolerate short-lived temperatures down to around -5°c when fully dormant. It is native mainly to coastal regions of the western Mediterranean, though can also be found further inland, experiencing hot, dry summers and cool, moist winters. It can succeed in regions where the annual precipitation is only 200mm.
Full cultivation guide →Juniperus pinchotii
Juniperus pinchotii
Family: Cupressaceae
Cultivation
Juniperus pinchotii is a moderately cold-hardy plant, able to tolerate temperatures down to around -15°c when fully dormant. The climate is warm to cool temperate, with long dry spells and mostly summer rain coming as scattered storms Requires an open, sunny position in a well-drained soil. The plant grows in the wild on shallow, rocky soils (often alkaline) that cannot support much vegetation.
Full cultivation guide →Juniperus polycarpos
Juniperus polycarpos
Family: Cupressaceae
Cultivation
Juniperus polycarpos is generally found at medium to higher elevations in the semi-arid, temperate-continental enviroments of western to central Asia. It experiences hot, dry summers and cool to cold winters. Mean annual precipitation is around 500 - 1,000mm.
Full cultivation guide →
Juniperus procera
Juniperus procera
Family: Cupressaceae
Cultivation
Juniperus procera is a tropical highland species, where it is commonly found at elevations between 1,800 - 2,800 metres, though it also occurs in the broader range of 1,000 - 3,500 metres. It is found in areas where the mean annual temperature ranges from 5 - 20°c. Plants from the higher parts of its range have proven to be surprisingly cold tolerant, able to withstand short periods with temperatures down to at least -5°c, and are growing outdoors in the milder regions of the temperate zone.
Full cultivation guide →Juniperus pseudosabina
Juniperus pseudosabina
Family: Cupressaceae
Cultivation
Juniperus pseudosabina is a very cold-hardy plant, able to tolerate temperatures down to around -30°c when fully dormant. The climate is extreme continental with short, hot, dry summers and long, cold, snowy winters. The species occurs in a continental climate at high elevations in mountains similar to the European Alps and should be hardy even in high latitudes Requires a sunny position and a well-drained soil.
Full cultivation guide →Juniperus recurva
Juniperus recurva
Family: Cupressaceae
Cultivation
Juniperus recurva is a moderately cold-hardy plant, able to tolerate temperatures down to around -15°c when dormant. It grows wild in the wetter areas of the Himalayas; at elevations up to 4,600 metres. This is one of the few junipers that require a good amount of rainfall and thrive best in a maritime, cool but mild climates, Succeeds in most soils if they are well drained, preferring a neutral or slightly alkaline soil and succeeding on chalk.
Full cultivation guide →Juniperus rigida
Juniperus rigida
Family: Cupressaceae
Cultivation
Juniperus rigida is a very cold-hardy plant, able to tolerate temperatures down to around -25°c when fully dormant. It grows wild in a mesic climate with abundant rainfall throughout the year. Succeeds in most soils if they are well drained, preferring a neutral or slightly alkaline soil and succeeding on chalk.
Full cultivation guide →Juniperus rigida conferta
Juniperus rigida conferta
Family: Cupressaceae
Cultivation
Juniperus rigida conferta is a very cold-hardy plant, able to tolerate temperatures down to around -25°c when fully dormant. Requires a sunny position. Succeeds in hot, dry sandy soils and in maritime exposure.
Full cultivation guide →Juniperus sabina
Juniperus sabina
Family: Cupressaceae
Cultivation
Juniperus sabina is a very cold-hardy plant, able to tolerate temperatures down to around -35°c when fully dormant. This species is most abundant on sunny, dry slopes in mountains with a mesic climate like the Alps; its drought tolerance accounts for its wider distribution in Asia into the Artemisia steppe and desert zones Succeeds in most soils if they are well drained, preferring a neutral or slightly alkaline soil. Prefers a limestone soil.
Full cultivation guide →Juniperus saltuaria
Juniperus saltuaria
Family: Cupressaceae
Cultivation
Juniperus saltuaria is not a very cold-hardy plant, able to tolerate short-lived temperatures down to around -8°c when fully dormant. Found in the wild mainly in rocky areas, such as at the foot of limestone cliffs and crags and in deep gorges, most abundantly on steep sunny slopes, but also found in deeper mountain soils on less steep slopes. This species is not very drought tolerant and needs abundant seasonal rainfall or snowmelt if it is to thrive.
Full cultivation guide →Juniperus scopulorum
Juniperus scopulorum
Family: Cupressaceae
Cultivation
Juniperus scopulorum is a very cold-hardy plant, able to tolerate temperatures down to around -35°c when fully dormant. It grows in a mostly continental climate, dry (in the rain shadow of coastal mountain ranges and in the SW) or subhumid with scattered summer storms, and has extreme differences in temperature between summer and winter. It can succeed with only 250mm of rainfall in a year, and is also found in areas with 660mm.
Full cultivation guide →Juniperus semiglobosa
Juniperus semiglobosa
Family: Cupressaceae
Cultivation
Juniperus semiglobosa is a very cold-hardy plant, able to tolerate temperatures down to around -30°c when fully dormant. The climate is alpine-continental, with hot, dry summers especially in the interior valleys and on S-facing mountain slopes, and cold winters, often with perpetual snowfields above the juniper zone supplying moisture through prolonged melting and seepage. Found in the wild on both calcareous and siliceous soils.
Full cultivation guide →Juniperus seravschanica
Juniperus seravschanica
Family: Cupressaceae
Cultivation
Juniperus seravschanica is native to the continental temperate climate of western and central Asia with its hot, dry summers and cold winters. It usually grows in regions where the mean annual precipitation is in excess of 500mm, much of it falling as snow. Winter temperatures can fall as low as -20°c.
Full cultivation guide →Juniperus squamata
Juniperus squamata
Family: Cupressaceae
Cultivation
Juniperus squamata is a very cold-hardy plant, able to tolerate temperatures down to around -25°c when fully dormant. The climate is high montane to alpine with strong monsoon influence, which however diminishes towards the northeast of its range. Succeeds in most soils if they are well drained, preferring a neutral or slightly alkaline soil and succeeding on chalk.
Full cultivation guide →Juniperus taxifolia
Juniperus taxifolia
Family: Cupressaceae
Cultivation
Juniperus taxifolia is not a very cold-hardy plant, able to tolerate short-lived temperatures down to around -5°c when fully dormant. Requires a sunny position and a well-drained soil. The plant is obviously subjected to strong and moist, salt-laden ocean winds in the wild.
Full cultivation guide →Juniperus thurifera
Juniperus thurifera
Family: Cupressaceae
Cultivation
Juniperus thurifera requires hot summers if it is to thrive, and is not a very cold-hardy plant, able to tolerate short-lived temperatures down to around -8°c when fully dormant. The climate in which it grows ranges from continental, semi-arid, with cold winters (in the Atlas Mountains) to continental-Mediterranean, with long dry summers. Requires a sunny position and a well-drained soil.
Full cultivation guide →Juniperus tibetica
Juniperus tibetica
Family: Cupressaceae
Cultivation
Juniperus tibetica is a moderately cold-hardy plant, able to tolerate temperatures down to around -20°c when fully dormant. The climate, mostly in the monsoon shadow of the main crest of the Himalayas, is continental with extremes of solar radiation and frost. Requires a sunny position and a well-drained soil.
Full cultivation guide →Juniperus turbinata
Juniperus turbinata
Family: Cupressaceae
Cultivation
Juniperus turbinata is not a very cold-hardy plant, able to tolerate short-lived temperatures down to around -5°c when fully dormant. It is native mainly to coastal regions of the western Mediterranean, though can also be found further inland, experiencing hot, dry summers and cool, moist winters. It can succeed in regions where the annual precipitation is only 200mm.
Full cultivation guide →Juniperus virginiana
Juniperus virginiana
Family: Cupressaceae
Cultivation
Juniperus virginiana is a very cold-hardy plant, able to tolerate temperatures down to around -30°c when fully dormant. It grows in areas where the mean annual precipitation can range from 380 - 1,520mm. Requires a sunny position.
Full cultivation guide →Juniperus virginiana silicicola
Juniperus virginiana silicicola
Family: Cupressaceae
Cultivation
Juniperus virginiana silicicola is not a very cold-hardy plant, able to tolerate short-lived temperatures down to around -8°c when dormant. The climate is subhumid to humid, with a mean annual precipitation in the range 1,000 - 1,600mm and very mild winters. Requires a sunny position.
Full cultivation guide →