Translate this page:

Summary

Physical Characteristics

Metrosideros is an evergreen Shrub growing to 10 m (32ft 10in).
See above for USDA hardiness. It is hardy to UK zone 9. It is in leaf all year, in flower in July. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: mildly acid and neutral soils. It cannot grow in the shade. It prefers moist soil.

UK Hardiness Map US Hardiness Map

Synonyms

Metrosideros hyssopifolia.

Plant Habitats

Edible Uses

None known

References More on Edible Uses

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.

An essential oil obtained from the fresh leaves and twigs is antibacterial[152]. It is used in the treatment of headaches[152]. One report says that the oil is very similar to tea tree oil, obtained from M. alternifolia[254]. The uses of that oil are as follows:- Tea tree, and in particular its essential oil, is one of the most important natural antiseptics and it merits a place in every medicine chest[254]. It is useful for treating stings, burns, wounds and skin infections of all kinds[254]. An essential oil obtained from the leaves and twigs is strongly antiseptic, diaphoretic and expectorant[156, 157, 238]. It stimulates the immune system and is effective against a broad range of bacterial and fungal infections[238]. Internally, it is used in the treatment of chronic and some acute infections, notably cystitis, glandular fever and chronic fatigue syndrome[254]. It is used externally in the treatment of thrush, vaginal infections, acne, athlete's foot, verrucae, warts, insect bites, cold sores and nits[238]. It is applied neat to verrucae, warts and nits, but is diluted with a carrier oil such as almond for other uses[238]. The oil is non-irritant[238]. Another report says that high quality oils contain about 40% terpinen-4-ol, which is well tolerated by the skin and 5% cineol which is irritant. However, in poor quality oils the levels of cineol can exceed 10% and in some cases up to 65%[254]. The essential oil is used in aromatherapy. Its keyword is 'Antiseptic'[210].

References More on Medicinal Uses

The Bookshop: Edible Plant Books

Our Latest books on Perennial Plants For Food Forests and Permaculture Gardens in paperback or digital formats.

Edible Tropical Plants

Food Forest Plants for Hotter Conditions: 250+ Plants For Tropical Food Forests & Permaculture Gardens.

Edible Temperate Plants

Plants for Your Food Forest: 500 Plants for Temperate Food Forests & Permaculture Gardens.

PFAF have eight books available in paperback and digital media.

More Books

PFAF have eight books available in paperback and digital formats. Browse the shop for more information.

Shop Now

Other Uses

An essential oil from the leaves has a nutmeg scent[156]. It is used medicinally[152]. Plants can be used for hedging in climates that are suitable for them[157]. Wood - very durable in damp ground or wet conditions[167].

Special Uses

References More on Other Uses

Cultivation details

Requires a fertile, well-drained moisture retentive lime-free soil in full sun[182]. Prefers a soil that does not contain much nitrogen[188]. This species is not very cold-hardy in Britain, though it should succeed outdoors in the mildest areas of the country. Plants tolerate temperatures down to at least -7°c in Australian gardens[157] but this cannot be translated directly to British gardens due to our cooler summers and longer, colder and wetter winters. One report says that it can tolerate occasional lows to about -5°c[260]. Plants can be difficult to establish[167]. The flowers are fragrant[245]. Seed takes about 12 months to develop on the plant, the woody seed capsules persist for 3 or more years[200]. Any pruning is best done after the plants have flowered with the intention of maintaining a compact habit[200]. Hybridizes freely with other members of this genus[200]. Plants in this genus are notably resistant to honey fungus[200].

References Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

Type a value in the Celsius field to convert the value to Fahrenheit:

Celsius Fahrenheit:

The PFAF Bookshop

Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants, Edible Perennials, Edible Trees,Edible Shrubs, Woodland Gardening, and Temperate Food Forest Plants. Our new book is Food Forest Plants For Hotter Conditions (Tropical and Sub-Tropical).

Shop Now

Plant Propagation

Seed - surface sow in spring or autumn onto a pot of permanently moist soil in a warm greenhouse. Emmerse in 5cm of water and do not water from overhead. Grow on until the seedlings are 0.5cm tall then remove from the water and pot up a week later. Seedlings are liable to damp off when grown this way, sowing the seed thinly, good ventilation and hygiene are essential for success[200]. Grow the plants on for at least their first winter in a greenhouse and then plant them out in late spring or early summer, after the last expected frosts. Consider giving the plants some protection from the cold for their first few winters outdoors. Cuttings of half-ripe lateral shoots with a heel, July/August in a frame[200].

Other Names

If available other names are mentioned here

Native Plant Search

Search over 900 plants ideal for food forests and permaculture gardens. Filter to search native plants to your area. The plants selected are the plants in our book 'Plants For Your Food Forest: 500 Plants for Temperate Food Forests and Permaculture Gardens, as well as plants chosen for our forthcoming related books for Tropical/Hot Wet Climates and Mediterranean/Hot Dry Climates. Native Plant Search

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 itâ€™s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants

Latin Name	Common Name	Habit	Height	Hardiness	Soil	Shade	Moisture	Edible	Medicinal	Other
Metrosideros excelsa	Pohutukawa	Tree	7.0	7-10	LMH	N	M	1	1	3
Metrosideros robusta	Northern Rata	Tree	6.0	8-11	LMH	N	M	1	0	3
Metrosideros umbellata	Southern Rata	Tree	15.0	8-11	LMH	N	M	0	0	3

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

Metrosideros - Sm.