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Euphorbia tetragona - Haw.

Common Name Naboom
Family Euphorbiaceae
USDA hardiness 6-9
Known Hazards The sap contains a latex which is toxic on ingestion and highly irritant externally, causing photosensitive skin reactions and severe inflammation, especially on contact with eyes or open cuts. The toxicity can remain high even in dried plant material[200]. Prolonged and regular contact with the sap is inadvisable because of its carcinogenic nature[214].
Habitats Not known
Range S. Africa - Cape Province
Edibility Rating    (1 of 5)
Other Uses    (2 of 5)
Weed Potential No
Medicinal Rating    (1 of 5)
Care (info)
Fully Hardy Well drained soil Moist Soil Semi-shade Full sun
Euphorbia tetragona Naboom


Frank Vincentz: http://commons.wikimedia.org/wiki/User:Ies
Euphorbia tetragona Naboom

 

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Summary


Physical Characteristics

 icon of manicon of cone
Euphorbia tetragona is an evergreen Tree growing to 10 m (32ft 10in).
See above for USDA hardiness. It is hardy to UK zone 7 and is not frost tender. The species is hermaphrodite (has both male and female organs).
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers dry or moist soil.

UK Hardiness Map US Hardiness Map

Synonyms

Plant Habitats

Woodland Garden Sunny Edge; Dappled Shade;

Edible Uses

Edible Parts: Nectar
Edible Uses:

The flowers are rich in nectar and this is sometimes used in confectionery[183].

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.
Miscellany

One report says that this species also supplies the drug, though it fails to say what the drug is or its medicinal actions[4].

References   More on Medicinal Uses

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Other Uses

Miscellany

Wildlife - The flowers are rich in nectar. Dynamic accumulator.

Special Uses

Dynamic accumulator

References   More on Other Uses

Cultivation details

Prefers a light well-drained moderately rich loam in an open position[200]. Succeeds in dry soils[1]. According to [200] this species is hardy to climatic zone 7 (tolerating temperatures down to about -10°c). This statement must be viewed with some scepticism, the plant is unlikely to be at all frost-tolerant. Hybridizes with other members of this genus[200]. The ripe seed is released explosively from the seed capsules[200]. Members of this genus are rarely if ever troubled by browsing deer or rabbits[233]. This genus has been singled out as a potential source of latex (for making rubber) for the temperate zone, although no individual species has been singled out[141].

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

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

Fahrenheit:

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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).

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Plant Propagation

Seed - sow spring in a shaded position in a greenhouse[200]. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts.

Other Names

If available other names are mentioned here

Native Range

AFRICA: Ethiopia, South Africa

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 :

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123

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.

 

Expert comment

Author

Haw.

Botanical References

200

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