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Juniperus communis nana - Syme.

Common Name Juniper
Family Cupressaceae
USDA hardiness Coming soon
Known Hazards Although the fruit of this plant is quite often used medicinally and as a flavouring in various foods and drinks, large doses of the fruit can cause renal damage. Juniper should not be used internally in any quantities by pregnant women[65, 165].
Habitats Rocks and moors on mountains and lowland bogs in N. Wales, N. England and Scotland[17].
Range Northern temperate zone, incl Britain, south to the mountains of N. Africa, Himalayas and California
Edibility Rating    (3 of 5)
Other Uses    (0 of 5)
Weed Potential No
Medicinal Rating    (3 of 5)
Care
Fully Hardy Well drained soil Moist Soil Semi-shade Full sun
Juniperus communis nana Juniper


Juniperus communis nana Juniper

 

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Summary


Physical Characteristics

 icon of manicon of shrub
Juniperus communis nana is an evergreen Shrub growing to 9 m (29ft 6in) at a slow rate.
It is hardy to zone (UK) 2 and is not frost tender. It is in leaf all year, in flower from May to June, and the seeds ripen in October. The species is dioecious (individual flowers are either male or female, but only one sex is to be found on any one plant so both male and female plants must be grown if seed is required). and is pollinated by Wind. The plant is not self-fertile.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils, prefers well-drained soil and can grow in heavy clay and nutritionally poor soils. Suitable pH: acid, neutral and basic (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 and can tolerate drought. The plant can tolerate maritime exposure.

Synonyms

J. nana. Willd. J. sibirica. Burgsdorf.

Habitats

Woodland Garden Sunny Edge; Ground Cover;

Edible Uses

Edible Parts: Fruit.
Edible Uses: Coffee;  Condiment;  Tea.

Fruit - raw or cooked[2, 5, 9, 15]. It is usually dried [12]. The fruit is often used as a flavouring in sauerkraut, stuffings, vegetable pates etc, and is an essential ingredient of gin[183]. The aromatic fruit is used as a pepper substitute according to one report[183]. An essential oil is sometimes distilled from the fruit to be used as a flavouring[183]. Average yields are around 1%[7]. The cones are about 4 - 8mm in diameter and take 2 years to mature[200]. Some caution is advised when using the fruit, see the notes above on toxicity. The roasted seed is a coffee substitute[177]. A tea is made by boiling the leaves and stems[161]. A tea made from the berries has a spicy gin-like flavour[183].

Medicinal Uses



Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.

Antiseptic;  Aromatic;  Carminative;  Diaphoretic;  Diuretic;  Rubefacient;  Stomachic;  Tonic.


Juniper fruits are commonly used in herbal medicine, as a household remedy, and also in some commercial preparations. They are especially useful in the treatment of digestive disorders plus kidney and bladder problems[4]. The fully ripe fruits are strongly antiseptic, aromatic, carminative, diaphoretic, strongly diuretic, rubefacient, stomachic and tonic[4, 7, 9, 21, 46, 165, 240, 254]. They are used in the treatment of cystitis, digestive problems, chronic arthritis, gout and rheumatic conditions[254]. They can be eaten raw or used in a tea[222], but some caution is advised since large doses can irritate the urinary passage[4]. Externally, it is applied as a diluted essential oil, having a slightly warming effect upon the skin and is thought to promote the removal of waste products from underlying tissues[254]. It is, therefore, helpful when applied to arthritic joints etc[254]. The fruits should not be used internally by pregnant women since this can cause an abortion[9]. The fruits also increase menstrual bleeding so should not be used by women with heavy periods[254]. When made into an ointment, they are applied to exposed wounds and prevent irritation by flies[4]. The essential oil is used in aromatherapy. Its keyword is 'Toxin elimination'[210].

Other Uses

Fibre;  Fuel;  Hair;  Incense;  Repellent;  Resin;  Strewing;  Tinder.

A decoction of the branches is used as an anti-dandruff shampoo[172]. Yields the resin 'Sandarac', used in the production of a white varnish[74]. The stems were at one time used as a strewing herb[14]. The whole plant can be burnt as an incense and fumigant[66, 102, 146]. It makes a good insect repellent[102, 172]. The bark is used as cordage[61] and as a tinder[172]. An excellent fuel wood[66]. Many forms of this species are good ground cover plants for sunny situations[208].

Cultivation details

Succeeds in hot dry soils and in poor soils. Succeeds in most soils so long as they are well drained[186], preferring a neutral or slightly alkaline soil. Does well in chalky soils[1]. Grows well in heavy clay soils. Tolerates a pH range from 4 to 8[186]. Succeeds in light woodland but dislikes heavy shade[186]. Established plants are very tolerant of drought[186]. Although the fully dormant plant is cold-tolerant throughout Britain, the young growth in spring can be damaged by late frosts. A very polymorphic species, there is a huge range of cultivars of widely diverse habits[11, 81]. At least some forms tolerate maritime exposure[186], there is a thriving colony in an exposed position at Land's End in Cornwall[81]. Seed takes 2 - 3 years to ripen on the plant[11]. Plants are usually very slow growing, often only a few centimetres a year[186]. Resists honey fungus[88]. Plants are sometimes attacked by a rust, this fungus has an aecidial stage on hawthorn (Crataegus spp.)[1]. Dioecious. Male and female plants must be grown if seed is required.

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Propagation

The seed requires a period of cold stratification. The seed has a hard seedcoat and can be very slow to germinate, requiring a cold period followed by a warm period and then another cold spell, each of 2 - 3 months duration[78, 81]. Soaking the seed for 3 - 6 seconds in boiling water may speed up the germination process[11]. The seed is best sown as soon as it is ripe in a cold frame. Some might germinate in the following spring, though most will take another year. Another possibility is to harvest the seed 'green' (when the embryo has fully formed but before the seedcoat has hardened). The seedlings can be potted up into individual pots when they are large enough to handle. Grow on in pots until large enough, then plant out in early summer. When stored dry, the seed can remain viable for several years[1]. Cuttings of mature wood, 5 - 10cm with a heel, September/October in a cold frame. Plant out in the following autumn[1, 78]. Layering in September/October. Takes 12 months[78].

Other Names

If available other names are mentioned here

Found In

Countries where the plant has been found are listed here if the information is available

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants
Latin NameCommon NameEdibility RatingMedicinal Rating
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Juniperus communisJuniper, Common juniper33
Juniperus confertaShore Juniper20
Juniperus deppeanaAligator Juniper30
Juniperus drupaceaSyrian Juniper30
Juniperus excelsaGrecian Juniper21
Juniperus horizontalisCreeping Juniper, Horizontal Juniper21
Juniperus monospermaOne-Seed Juniper32
Juniperus occidentalisWestern Juniper32
Juniperus osteospermaDesert Juniper, Utah juniper22
Juniperus oxycedrusPrickly Juniper, Cade juniper01
Juniperus recurvaHimalayan Juniper11
Juniperus rigidaTemple Juniper, Needle Juniper21
Juniperus sabinaSavine, Tam Juniper02
Juniperus scopulorumRocky Mountain Juniper, Weeping Rocky Mountian Juniper, Colorado Red Cedar32
Juniperus silicicolaSouthern Redcedar, Juniper, Southern Red Cedar22
Juniperus squamataFlaky Juniper01
Juniperus tetragona 20
Juniperus virginianaPencil Cedar, Eastern redcedar, Southern redcedar, Silver Cedar, Burk Eastern Red Cedar, Silver East22

 

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Botanical References

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