Gelsemium rankinii
Rankin's swamp trumpet flower
Flower Colors
Description
A vigorous twining evergreen perennial to up to 6m, with slender twining stems bearing glossy green narrowly ovate leaves and small clusters of funnel-shaped, bright yellow flowers marked with orange in throat
Mature Height
8m
Mature Spread
2.5m
Plant Characteristics
Foliage
Evergreen
Growth Habit
Climbing
Growth Speed
Very Fast · 1.1 m/yr
Soil Texture
ChalkClayLoamSand
Soil pH
AcidAlkalineNeutral
Soil Moisture
Moist but well-drained
Hardiness (RHS)
H5
Hardiness (USDA)
Zones 7-9
Flowering Season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Key Features
City and courtyard gardensClimber and wall shrubsConservatory and greenhouseWall side borders