Genus: Spurge

Euphorbia

Photo/Illustration: 
Jennifer Benner
Spurge (Euphorbia)
yew-FOR-bee-ah
Euphorbiaceae
This genus is extremely varied in its plant forms and habitats, ranging from large, succulent trees and tiny, compact succulents to herbaceous perennials and semi- or evergreen, herbaceous shrubs. Their unique flower structure consists of conspicuous leaf bracts of yellow, red, purple, brown, or green, with tiny, male and female floral parts in contrasting colors. Many species are notable for these peculiar flowers, as well as their handsome foliage and their remarkable form.
Noteworthy characteristics:  The herbaceous species are well suited to a rock garden, mixed border, or to naturalizing. The succulents are well suited to a dry tropical garden and warm or temperate greenhouse. Their milky sap may cause irritation to skin, and severe discomfort if ingested
Care:  Depends upon the species.
Propagation: 

Sow seed of annuals in situ, seed of tender succulents when ripe, and seed of hardy perennials when ripe or in spring. Divide perennials in early spring.

Problems: 

Nematodes, spider mites, aphids, mealybugs, fungal and bacterial diseases.

Species, varieties and clutivars for genus Euphorbia

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Euphorbia 'Black Bird'
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Euphorbia 'Diamond Frost'
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Euphorbia 'Helena’s Blush™'
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Euphorbia 'Jade Dragon'
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Wood spurge
Euphorbia amygdaloides
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Mrs. Robb's bonnet
Euphorbia amygdaloides var. robbiae
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Wood spurge
Euphorbia amygdaloides ‘Rubra’
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Candelilla
Euphorbia antisyphilitica
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Euphorbia characias
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Tropical smoke bush
Euphorbia cotinifolia
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Euphorbia dulcis
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Euphorbia dulcis 'Chameleon'
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Euphorbia griffithii
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Euphorbia griffithii 'Fireglow'
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Diamond Frost® euphorbia
Euphorbia inneuphdia
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Myrtle spurge
Euphorbia myrsinites
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Euphorbia palustris
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Cushion spurge
Euphorbia polychroma
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Euphorbia rigida
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Pencil tree
Euphorbia tirucalli