Field ManualAll plants

African Daisy
Osteospermum L.
- Container Plant
- Long Bloomer
Pet & Human Safety
People: No hazard foundPets: Not on the ASPCA lists as we read them
No source we checked assesses this plant for pets, so the app makes no pet claim either way.
PlotAndPetal cannot tell you whether a plant you found can be eaten. Only someone who can see the plant can identify it.
Poison control
If someone has collapsed, cannot be woken, is having a seizure or has trouble breathing, call 911 now. For any other possible poisoning, call Poison Help: 1-800-222-1222.
Emergency number source: U.S. federal law (47 U.S.C. § 251(e)(3)), read 2026-10-07.
Naturalist Lore
Historical Background & Breeding Lore
The history of this plant and its name, and how it was bred, where we have them.
Get the app: coming soonCare
- Hardiness zones
UK RHS hardiness rating H3 for the cultivar 'Nairobi Purple' (RHS, UK system; the rating varies by cultivar).
- Light
full sun
- Water needs
moderate
- Mature size
Colorado State lists hybrids at 8-14 inches tall; UNL lists 9-18 inches (Nebraska source, under the name Osteospermum / Cape daisy); RHS gives 10-50 cm tall and spread for 'Nairobi Purple'.
- Family
Asteraceae (RHS)
How to prepare the soil, when and what to feed, and how and when to prune where that applies.
Get the app: coming soonAnatomy & Guilds
Botanical Anatomy & Characteristics
How the flowers and leaves are built and which pollinators visit, where we have them.
Get the app: coming soonField Doctor
Field Doctor
What can go wrong with this plant and what to do about it, where we have them.
Get the app: coming soonVintage Plates
Vintage Plates
Old botanical drawings from public libraries are in the app, for plants where we have them.
Get the app: coming soonSources
- RHS Plant Finder, Osteospermum 'Nairobi Purple' (one cultivar; used for whole-genus UK notes)
- Colorado State University Extension, Herbaceous Perennials table
- University of Nebraska-Lincoln Extension G1774, annual flowers table
- ASPCA, Toxic and Non-toxic Plants: African Daisy (Gerbera jamesonii), a different plant, read to rule out a match