Skip to main content

Florida Keys Hempvine

Mikania cordifolia

Last reviewed: September 2026

Florida Keys Hempvine (Mikania cordifolia)
Photo: (c) Jay Horn, some rights reserved (CC BY)

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 452 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

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.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

Ready to grow Florida Keys Hempvine? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Planning a bed around it? Start a free plan with this plant

Not sure where to start? Take the 2-minute yard quiz