How Much Water Do Sundevil Flowers Need?

Characteristics

• Madagascar periwinkles, like the Sun Devil series, are grown as annuals in cold winter climates. They are low-growing, branching plants with large, five-petaled flowers in shades of white, rose and pink, sometimes with a contrasting central blotch or eye. The glossy leaves are 2- to 3-inches long.

Water Needs

• Sun Devil periwinkles, like other members of the Catharanthus species, require regular supplemental water only, usually for about a month, until they become established. This series of F1 hybrids was specifically bred for hardiness, especially resistance to heat and drought conditions.

Considerations

• These plants thrive best in relatively poor, dry, free-draining soil. Bad drainage or too much watering reduces vigor and leads to rot. Amending the soil with sand, grit or fine gravel increases drainage.