Plant Profile: Euphorbia characias subsp. wulfenii

A variant of Euphorbia characias, this subspecies is characterized by its compact growth and vibrant flowers. Typically, it reaches heights of 2 to 3 feet and spreads 1 to 2 feet wide. In spring, it showcases large clusters of chartreuse, cup-shaped blooms that rise above the foliage. The striking blue-green leaves are arranged in whorls and may remain evergreen in milder winter climates. When the stem is broken, it releases a milky sap that can irritate the skin and eyes, so it's advisable to wear gloves and eye protection. After flowering, it's best to trim the stems back, as the plant will readily self-seed.

This species is particularly prone to overwatering and can suffer from root rot if planted in poorly draining soil. It thrives in a Mediterranean climate but may struggle in hot, humid conditions. It is an excellent option for dry, sunny locations, raised beds, and xeriscape gardens, and it can also be cultivated in containers.

For further details on Euphorbia characias, please refer to additional resources.