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| Category: Succulent |
| Family: Euphorbiaceae (Spurges) |
| Origin: Madagascar |
| Evergreen: Yes |
| Flower Color: Yellow |
| Bloomtime: Year-round |
| Synonyms: [E. 'Supergrandiflora Yellow'] |
| Parentage: (Euphorbia lophogona x E. millii) |
| Height: 2-3 feet |
| Width: 2-3 feet |
| Exposure: Full Sun |
| Seaside: Yes |
| Summer Dry: Yes |
| Irrigation (H2O Info): Low Water Needs |
| Winter Hardiness: 25-30° F |
| May be Poisonous (More Info): Yes |
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Euphorbia x lomi 'Yellow' (Supergrandiflora Yellow) - This evergreen succulent shrub grows to 2 to 3 feet tall with gray spiny stems that sparsely hold small oblong pale green leaves at the tips. Also at the tips of the branches are the pairs of yellow flowers (bracts). The supergrandiflora series was bred in Thailand by crossing Euphorbia lophogona with Euphorbia millii and selections were made for good color and large bracts. These hybrids are correctly known as Euphobia x lomi, a hybrid epithet formed from the first two letters of the parent species, but are generally marketed as Supergrandiflora Hybrids. The cultivar 'Yellow' has much larger flower bracts (the colorful petal-like leaves that surround the true flowers) than those typically surrounding the flowers of the common red crown of thorns. These bracts are yellow with a tinge of green on the margin and can be present year-round in mild climates but are most abundant in the spring. It has low water needs and does best in the full sun or light shade. Hardy to about 28 degrees F. A great container plant, in a rock garden or trained up as a small wall covering. Tolerates seaside conditions.
The information about Euphorbia x lomi 'Yellow' that is displayed on this web page is based on research conducted in our nursery's horticultural library and from reliable online resources. We will also include observations made about this plant as it grows in our nursery gardens and other gardens that we have visited, as well how the crops have performed in containers in our nursery field. We also incorporate comments that we receive from others and welcome hearing from anyone with additional information, particularly if they share cultural information that aids others growing this plant.
Please note that after 46 years in business, San Marcos Growers will be discontinuing nursery operations by the end of 2025 and the property will be developed for affordable housing.
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