Euphorbia martinii Ascot Rainbow PP 21401 Sinningia the stalks are topped with

the stalks are topped with short but attractive spikes of small white flowers

When winter temperatures stay above 15 degrees F

This dazzling yucca has labored in obscurity due to its very slow growth habit

The clumps are topped in midsummer with 5" spikes of lavender flowers

followed by blackberry-like ornamental seed pods

Euphorbia martinii Ascot Rainbow PP 21401 Sinningia the stalks are topped withFolks who have trialed Euphorbia 'Ascot Rainbow' have been most impressed, especially after it survived a harsh south Michigan winter. Euphorbia x martinii 'Ascot Rainbow' (Euphorbia characias x Euphorbia amygdaloides 'Rubra') was discovered by David Glenn in Australia, but was granted permanent garden worker status in the US. The 20" tall, branching, evergreen stalks are adorned with narrow, glaucous leaves, each edged in an attractive yellow border.