North America Non-native Plant

Endive Daisy

Botanical name: Rhagadiolus stellatus

USDA symbol: RHST3

Life cycle: annual

Habit: forb

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Synonyms: Rhagadiolus edulis Gaertn. (RHED3)   

Endive Daisy: A Mediterranean Charmer for California Gardens Meet the endive daisy (Rhagadiolus stellatus), a delightful little annual that’s made itself quite at home in California’s Mediterranean climate. This cheerful member of the sunflower family might not be a California native, but it’s certainly found its niche in the Golden ...

Endive Daisy: A Mediterranean Charmer for California Gardens

Meet the endive daisy (Rhagadiolus stellatus), a delightful little annual that’s made itself quite at home in California’s Mediterranean climate. This cheerful member of the sunflower family might not be a California native, but it’s certainly found its niche in the Golden State’s diverse landscapes.

What Exactly Is Endive Daisy?

Don’t let the name fool you – endive daisy isn’t actually related to the leafy endive you might toss in your salad, nor is it a true daisy. This low-growing annual forb produces small, bright yellow composite flowers that eventually transform into distinctive star-shaped seed heads. It’s these stellar seed structures that give the plant its species name stellatus, meaning star-like.

You might also encounter this plant listed under its synonym Rhagadiolus edulis, though endive daisy seems to be the most commonly used common name.

Where You’ll Find It Growing

Originally hailing from the Mediterranean region, endive daisy has established itself in California, where the climate closely mimics its ancestral home. It’s considered a non-native species that reproduces on its own and has naturalized in various California habitats.

Garden Appeal and Landscape Role

While endive daisy might not win any showstopper of the year awards, it has its own subtle charm. The plant forms low rosettes of leaves close to the ground, with small yellow flowers appearing on short stems. What really catches the eye are those star-shaped seed heads – they’re quite architectural and add interesting texture to the garden even after the flowers fade.

This makes endive daisy particularly suited for:

  • Mediterranean-style gardens
  • Drought-tolerant landscapes
  • Naturalized wildflower areas
  • Rock gardens
  • Areas where you want low-maintenance ground coverage

Growing Conditions and Care

One of endive daisy’s most appealing traits is its easy-going nature. This annual thrives in USDA hardiness zones 8-10, making it well-suited to California’s climate. Here’s what it needs to flourish:

  • Sunlight: Full sun exposure
  • Soil: Well-draining soil (it’s not picky about soil type)
  • Water: Drought tolerant once established, though regular watering during germination helps
  • Maintenance: Minimal – this is a plant it and forget it kind of species

Planting and Propagation

As an annual, endive daisy completes its entire life cycle in one growing season, but the good news is that it readily self-seeds. You can start plants from seed in fall or early spring, scattering them directly where you want them to grow. The seeds don’t need much fussing over – just light coverage with soil and consistent moisture until germination.

Once established, you’ll likely find volunteer seedlings popping up in subsequent years, as this plant is quite good at perpetuating itself.

Wildlife and Pollinator Benefits

Those cheerful yellow flowers aren’t just for show – they attract various small pollinators including bees and beneficial insects. While we don’t have extensive data on its specific wildlife benefits, most plants in the sunflower family provide some value to local ecosystems.

Should You Plant Endive Daisy?

This is where things get a bit nuanced. Endive daisy isn’t listed as invasive or noxious, and it seems to coexist peacefully with other plants rather than aggressively taking over. However, as a non-native species, it’s worth considering whether there might be native alternatives that could provide similar benefits while supporting local ecosystems more directly.

If you’re drawn to low-growing annuals with interesting seed heads, consider native California options like:

  • California goldfields (Lasthenia californica)
  • Elegant clarkia (Clarkia unguiculata)
  • Various native lupines

That said, if you already have endive daisy in your garden or you’re particularly drawn to its Mediterranean character, there’s no urgent need to remove it. Just be mindful of its non-native status and perhaps balance it with native plantings elsewhere in your landscape.

The Bottom Line

Endive daisy is an undemanding little annual that can add subtle charm to Mediterranean-style gardens and naturalized areas. While it’s not native to California, it appears to be a well-behaved garden resident that offers some benefits to pollinators. Whether you choose to include it in your garden ultimately depends on your gardening philosophy and landscape goals – just remember that native alternatives might provide even greater ecological value.

Endive Daisy

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

Rhagadiolus Juss. - rhagadiolus

Species

Rhagadiolus stellatus (L.) Gaertn. - endive daisy

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