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Euphorbia cyathophora

Euphorbia cyathophora
summer poinsettia
The flowers may not be all that exciting to us, but they attract lots of pollinating insects

Synonym(s) Euphorbia heterophylla; Poinsettia cyathophora
Common name summer poinsettia
Family euphorbiaceae
Life cycle annual
Flowers orange bracts
Size 2-3'
Light sun
Cultural notes ordinary garden soil
From seed germinate at room temperature. self-seeds moderately in our garden

Self-sowing annual, which I'm always happy to see return. Even before it does its poinsettia thing, I enjoy the slightly glossy, interestingly cut leaves. These make them easy to identify in the garden, which is a good thing, because it seems to pop up in different places different years. It doesn't grow much until early summer, but then it climbs and fills out rapidly – so I do find myself selectively pulling some that get in the way of other plants. The bright orange-red leaf surfaces appear in August, alongside the flowers which aren't nearly as showy. A mass planting looks very festive in late summer! In years with cool summers, the seeds don't ripen, at least not on the majority of the plants I check – but somehow, some volunteers always emerge the next year.

Euphorbia cyathophora
Seedling popping up in a driveway crack

We left this plant behind in our Pennsylvania garden (and wish it well); we don't grow it in Houston.

One or more images of this plant are included in my stock photo catalog

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