Alert: Limited Online Availability

Now that fall is here, we have limited our stock for online purchase. Find Monrovia plants at your local garden center. Pre-order for 2023 will be available later this year. ×

We no longer grow this plant.
This page is for reference only.  To find other great selections that are available, please use our Plantfinder

Duet® Jessamine

Gelsemium rankinii & Gelsemium sempervirens

A combination of two well-mannered, moderate growing climbers prized for its spectacular display of fragrant, bright yellow flowers and an extended bloom period! Suitable for a trellis or arbor, fences and walls, or as a groundcover. Evergreen to semi-evergreen.
There are very few rules in gardening, but perhaps the most important one is to work within your zone. Choosing plants that grow and thrive in your particular climate is the very first step toward having a beautiful garden . Learn More

Your climate might be too cold for this plant:


Full sun, Partial sun

Keep soil moist, but not soggy.


Due to the seasonal nature of plants, availability at your local garden center is not guaranteed. Give them a call before visiting.

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Botanical Pronunciationjel-SE-mi-um RAN-kin-eye, jel-SEM-ee-um sem-per-VEY-renz
Average Size at MaturityFast growing vine; twining stems reach 10 to 15 ft. tall, 7 to 12 ft. wide.
Bloom TimeSpring, repeating in late summer to fall.
Deciduous/ EvergreenSemi-evergreen
Flower AttributeFragrant, Long Bloom Season, Showy Flowers
Flower ColorYellow
Foliage ColorGreen
Garden StyleCottage, Rustic
Growth RateFast
Landscape UseContainer, Espalier, Privacy Screen, Ground Cover
Light NeedsFull sun, Partial sun
Special FeatureEasy Care, North American Native Selection, Fast Growing
Water NeedsModerate
Watering NeedsKeep soil moist, but not soggy.
Companion PlantsBougainvillea (Bougainvillea); Hibiscus (Hibiscus); Jatropha (Jatropha); Climbing Rose (Rosa); Star Jasmine (Trachelospermum)

Thrives in enriched, slightly acidic, evenly moist, well-drained soil. Water deeply, regularly during first growing season to establish extensive root system. Provide support such as trellis or arbor, or allow to ramble on the ground. Prune annually to control size. Sap may irritate; protect skin when pruning. Not fit for human or animal consumption.

This Plant's Growing Zones: 7-9

USDA Cold Hardiness Zone Map

Your USDA Cold Hardiness Zone:

Your climate may be too cold for this plant