Garden Cosmos
Cosmos bipinnatus
Found in garden edges, roadsides, disturbed areas, commonly cultivated horticulturally, sometimes escaped. FloraQuest, phone app (app page) What its natural habitat tells you
Not native to Florida. How scores work Is it native here?
Profile 71%
- Height
- 2–4 feet
- Spread
- 2–3 feet
- Light
- Full sun, Partial shade
- Soil moisture
- Dry to average

At a glance
- Life cycle
- Annual
Not yet recorded · Leaves · Bloom
Bloom: recorded only in the FloraQuest: Carolinas, Georgia (Southeastern Flora Team) phone app (app page).
Leaves: no source found yet.
This plant is missing most of its facts, so Quercus is looking them up in old botany books.
Recorded in 3 Florida counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.
Roadsides, fields and disturbed ground
Ground opened by people: roadsides, old fields, pastures, fencerows and lots.
Who uses this plant?
5CaterpillarsGenus host records with ranges including FL
Genus host records with ranges including FL · Cosmos
- Homoeosoma electellaSunflower Moth
- Papaipema cataphractaBurdock Border, Potato-Stalk Borer
- Papilio polyxenesBlack Swallowtail, Celery Caterpillar, Fennel Worm, Desert Black Swallowtail, Parsnip Swallowtail
- Rachiplusia ouGray Looper
- Spodoptera ornithogalliYellow-Striped Armyworm Moth, Cotton Cutworm
4Specialist beesPollen specialists
Pollen specialists · Cosmos
- Dieunomia heteropoda
- Megachile pugnata
- Melissodes dentiventris
- Melissodes trinodis
Plant details
- Family
- Asteraceae
- Hardiness
- Zones 2a–11b
- Soil pH
- Neutral to alkaline
- Flower color
- Yellow, pink, purple or white
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Flower color · “Yellow, pink, purple or white” · NC Extension Plant Toolbox
- Hardiness · “Zones 2a–11b” · NC Extension Plant Toolbox
- Height · “2–4 feet” · NC Extension Plant Toolbox
- Life cycle · “Annual” · NC Extension Plant Toolbox
- Light · “Full sun (6 or more hours of direct sunlight a day); Partial shade (direct sunlight only part of the day, 2-6 hours)” · NC Extension Plant Toolbox
- Soil · “Occasionally dry” · NC Extension Plant Toolbox
- Soil pH · “Neutral to alkaline” · NC Extension Plant Toolbox
- Spread · “2–3 feet” · NC Extension Plant Toolbox
Also known as
Cosmos
Conservation status
| Florida rank | SNA |
|---|---|
| Global rank | GNR |
| FL status | Not verified |
| Federal status | Not verified |
Native alternatives
Find natives for your gardenSources
- Atlas of Florida Plants
- USDA PLANTS
- NatureServe Explorer
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications

