Florida Keys Hempvine
Mikania cordifolia
Last reviewed: August 2026
Toxicity unknown
Florida Keys Hempvine (Mikania cordifolia) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
part sun
Water
medium
Size
36"–120" H × 24"–72" W
Bloom
Jun, Jul, Aug, Sep
Native to
AL, FL, GA, LA and 2 more states
Pollinators
bees, butterflies
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 445 programs across 44 states, each with a link to the provider and the date we last checked it.
Find rebates in your areaBrowse plants for this ecoregion
A climbing vine that can reach 10 feet tall with heart-shaped leaves. It produces clusters of small white flowers from summer through early fall that attract numerous pollinators. This vigorous grower needs strong support structures and regular pruning to maintain shape.
In an HOA neighborhood
Florida Keys Hempvine takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Can appear unruly and weedy without constant maintenance
- Vigorous growth may be seen as invasive-looking
- Name includes 'hempvine' which could raise concerns
Wildlife value
The abundant summer and fall blooms provide nectar for bees and butterflies during peak growing season. Its dense growth habit can also provide nesting sites for small birds.
Common questions
- How much sun does Florida Keys Hempvine need?
- Florida Keys Hempvine grows best in part sun conditions.
- When does Florida Keys Hempvine bloom?
- Florida Keys Hempvine blooms in June, July, August, and September.
- Where is Florida Keys Hempvine native?
- Florida Keys Hempvine (Mikania cordifolia) is native to AL, FL, GA, LA and 2 more states, per the World Checklist of Vascular Plants (Kew).
- What pollinators does Florida Keys Hempvine attract?
- Florida Keys Hempvine draws bees and butterflies.
- Is Florida Keys Hempvine HOA-friendly?
- Florida Keys Hempvine takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow Florida Keys Hempvine? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Not sure where to start? Take the 2-minute yard quiz