Euphorbia geroldii (Thornless Euphorbia)

Euphorbia geroldii (Thornless Euphorbia) red flower plant with thin stems and green leaves
Euphorbia geroldii (Thornless Euphorbia) growing in a dark container with numerous small red flowers
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Euphorbia geroldii

Botanical name: Euphorbia geroldii

Common name: Thornless Euphorbia

Family: Euphorbiaceae

Origin: Madagascar

USDA Plant Hardiness Map

USDA Zone: 9-11

Small plant 2-5 ftPlant used for bonsaiPlant form: Small; suitable for bonsai
Plant mature sizeMature height: 2-5 ft
Full sunSemi-shadeSun exposure: Full sun or bright light indoor; semi-shade
Subtropical plant. Mature plant cold hardy at least to 30s F for a short timeCold tolerance: Tolerates light freezing to about 30°F for short periods (mature plants). Young plants must be protected.
Watering: Moderate. Water when top soil feels dryWatering: Moderate
Red, crimson, vinous flowersFlower color: Red, crimson, vinous
Suitable forSuitable for: Outdoors in the suitable USDA zone; small gardens, containers, and indoor growing
Plant attracts butterflies, hummingbirdsWildlife: Attracts butterflies and hummingbirds

This semi-succulent shrub blooms all summer with bright red flowers in pairs with yellow centers. With wider leaves than Euphorbia millii and no spine, it prefers semi-shade and likes more moisture than other similar Euphorbias.

Native to Madagascar, like its spiny cousin Euphorbia millii, but much rarer in cultivation.

Discovered in the 19th century, it's one of the very few thornless Euphorbias in this group.

Flowers nearly year-round in warm climates, not just summer, especially if kept moist.

The flowers are actually bracts (modified leaves), and they appear in pairs around the true tiny yellow center.

It tolerates containers very well, making it popular for bonsai and small space gardening.

While thornless, it still produces the typical Euphorbia milky sap, which is irritating if it touches skin.

In its natural habitat, it's endangered due to deforestation and over-collection, which makes cultivated plants even more valuable to collectors.

Compared to Euphorbia millii, it prefers a bit more shade and water, giving it a softer, lusher look.

Similar plants: Euphorbia geroldii (Thornless Euphorbia)

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Image gallery: 13 images
Euphorbia geroldii (Thornless Euphorbia) orange flower on green leaves branch
Euphorbia geroldii (Thornless Euphorbia) orange flower clusters on dark green foliage
Euphorbia geroldii (Thornless Euphorbia) red flowers on a woody green branched plant
Euphorbia geroldii (Thornless Euphorbia) growing in a terra cotta pot with small red flowers.
Euphorbia geroldii (Thornless Euphorbia) plant with red flowers and green leaves in a close up
Euphorbia geroldii (Thornless Euphorbia) with small red flowers and dark green foliage on many thin branches.
Euphorbia geroldii (Thornless Euphorbia) with thin grey branches and tiny red flower plant
Euphorbia geroldii (Thornless Euphorbia) growing in thin grey stems with small green leaves and red flower
Euphorbia geroldii (Thornless Euphorbia) with orange flowers and thick dark green oval leaves on plant
Euphorbia geroldii (Thornless Euphorbia) stems carry orange flowers nestled among dense dark green foliage throughout branches
Euphorbia geroldii (Thornless Euphorbia) orange flower on green plant, close up.
Euphorbia geroldii (Thornless Euphorbia) orange flower clusters amid waxy green leaves on branch.
Euphorbia geroldii (Thornless Euphorbia) red flower close up on green foliage background
Euphorbia geroldii (Thornless Euphorbia) flower with vivid red petals and tiny yellow centers.
Euphorbia geroldii (Thornless Euphorbia) red flower close up with shiny green leaves on a plant
Euphorbia geroldii (Thornless Euphorbia) flower with vivid red petals and a small yellow center point
Euphorbia geroldii (Thornless Euphorbia) red flowers with yellow centers on a leafy green plant
Euphorbia geroldii (Thornless Euphorbia) with small vibrant red flowers against glossy rounded green leaves
Euphorbia geroldii (Thornless Euphorbia) red flower close up with green leaves for plant identification purposes.
Euphorbia geroldii (Thornless Euphorbia) flower with vibrant red petals and yellow centers amidst deep green foliage.
Euphorbia geroldii (Thornless Euphorbia) plant with red flowers and dark green foliage in a pot.
Euphorbia geroldii (Thornless Euphorbia) growing in black plastic containers with thin stems and numerous red flowers.
Euphorbia geroldii (Thornless Euphorbia) red flower close up with dark green leaves
Euphorbia geroldii (Thornless Euphorbia) red flower with yellow centers and dark green oval leaves.
Euphorbia geroldii (Thornless Euphorbia) plant with red flowers on thin brown branches and green leaves.
Euphorbia geroldii (Thornless Euphorbia) plant stems covered in many small red flowers and green leaves.


Link to this plant:
https://toptropicals.com/catalog/uid/euphorbia_geroldii.htm
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