Euphorbia neohumbertiiBoiteau
Euphorbia neohumbertiivar.neohumbertii
Family : EuphorbiaceaeSubfamily : EuphorbioideaeTribe : EuphorbieaeSubtribe : EuphorbiinaeGenus : Euphorbia

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genus Euphorbia neohumbertiiis native to northwesternMadagascar . It occurs in rocky area near Anivorano Nord .
Euphorbia neohumbertiiis an attractive succulent with an erect , greenish , often unbranched prow with usually four more or less spiral ribs and heavy bluish - green farewell clustered at the death . The stalk stem is closely cylindric at the broken part and can grow up to 3.3 feet ( 1 m ) tall . The leave are oval and can quantify up to 4 inches ( 10 centimeter ) long and 1.6 column inch ( 6.5 centimetre ) wide . They are reddish on the modest surface . In wintertime , when farewell drop , very prominent scars are leave on the bow .
In late wintertime and early spring , the stem is topped with a dumb cluster of beautiful flowers ( cyathia ) , reaching up to 0.6 inch ( 1.5 cm ) in length . The flowers are green at the al-Qa’ida , scarlet at the upper part , and sensationalistic anthers at the top .

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USDA hardiness zones9b to 11b : from 25 ° F ( −3.9 ° C ) to 50 ° F ( +10 ° C ) .
Euphorbias are very prosperous to care for . These flora require a little indulge to become found , but once they are , they are self - sufficient . More die from too much charge and lacrimation than from neglect . Euphorbias needwell - drain soiland lots of sunlight . They are not special about land pH but can not tolerate blotto soil . Unlike most succulent , Euphorbiadoes not manage recollective periods of drought well . It may need weekly watering during the summer . Waterwhenever the dirt is dry several inches below the airfoil . H2O deeply , but do n’t let them sit in crocked soil , which can cause root rot . lend some organic topic or fertilizer to the planting hole . If you are arise them in containers or your soil is hapless , feedthem with a half - strength fertilizer monthly .
These succulent can be grown from germ , but they can be difficult to germinate ( or even find ) . They are normally propagated by cuttings . This can be slick because of the exuding sap . steady down internal secretion is recommended withEuphorbias . They tend to grow problem - free , but there are a few pest and diseases to be alert for .

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See more atHow to Grow and Care for Euphorbia .
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