North America Non-native Plant

Osteospermum Spinescens

Botanical name: Osteospermum spinescens

USDA symbol: OSSP2

Native status: Not native but doesn't reproduce and persist in the wild

Osteospermum spinescens: A Botanical Mystery Worth Investigating If you’ve stumbled across the name Osteospermum spinescens in your gardening research, you’re not alone in scratching your head. This particular plant name presents quite the puzzle for gardeners and botanists alike, and there’s a good reason why you might be having trouble ...

Osteospermum spinescens: A Botanical Mystery Worth Investigating

If you’ve stumbled across the name Osteospermum spinescens in your gardening research, you’re not alone in scratching your head. This particular plant name presents quite the puzzle for gardeners and botanists alike, and there’s a good reason why you might be having trouble finding information about it.

The Mystery of the Missing Daisy

Osteospermum spinescens belongs to the Osteospermum genus, commonly known as African daisies – those cheerful, colorful flowers that many gardeners adore. However, here’s where things get interesting (and a bit frustrating): this specific species name doesn’t appear in major botanical databases or horticultural references.

The genus Osteospermum is well-documented and includes many popular garden varieties, but spinescens seems to be either an obsolete name, a very rare localized species, or possibly a misidentification. Without reliable documentation, it’s impossible to provide accurate information about its native range, growing requirements, or garden performance.

What This Means for Gardeners

If you’re looking to add this particular plant to your garden, here’s what you need to know:

  • Verify the plant name with your supplier or nursery
  • Ask for additional identifying information or photos
  • Consider that it might be sold under a different or more current botanical name
  • Request information about the plant’s origin and growing requirements from your source

Better Alternatives: Proven Osteospermum Species

Rather than hunting for this elusive species, consider these well-documented and readily available Osteospermum options that will definitely deliver the African daisy charm you’re likely seeking:

  • Osteospermum ecklonis – The classic white African daisy with purple undersides
  • Osteospermum fruticosum – A shrubby variety with excellent drought tolerance
  • Osteospermum jucundum – Features lovely pink to purple blooms

Growing African Daisies Successfully

While we can’t provide specific care instructions for O. spinescens, most Osteospermum species share similar growing requirements:

  • Full sun exposure for best flowering
  • Well-draining soil (they hate wet feet!)
  • Moderate water once established
  • Regular deadheading to encourage continued blooming
  • Protection from harsh frost in colder climates

The Bottom Line

Before investing time and money in Osteospermum spinescens, do your detective work. Contact botanical gardens, extension services, or horticultural societies for clarification. In the meantime, there are plenty of proven African daisy species that will give you that burst of color and Mediterranean flair you’re after – without the guesswork!

Remember, successful gardening often means working with plants that have established track records. Sometimes the most mysterious plant names lead us to discover even better alternatives that are right under our noses.

Osteospermum Spinescens

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Osteospermum L. - daisybush

Species

Osteospermum spinescens Thunb.

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA