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Products > Athanasia dentata
 
Athanasia dentata - Toothed-leaf Athanasia

Note: This plant is no longer in stock. This is an archive page preserved for informational use.  
Image of Athanasia dentata
 
Habit and Cultural Information
Category: Shrub
Family: Asteraceae (Sunflowers)
Origin: South Africa (Africa)
Evergreen: Yes
Flower Color: Yellow
Bloomtime: Spring/Summer
Height: 3-4 feet
Width: 3-4 feet
Exposure: Full Sun
Seaside: Yes
Summer Dry: Yes
Irrigation (H2O Info): Low Water Needs
Winter Hardiness: 20-25° F
Athanasia dentata (Toothed-leaf Athanasia) - a fast growing upright densely foliaged subshrub that grows 3 to 4 feet tall with attractive small green recurving leaves are serrated along the margins and arranged tightly on the nearly vertical slender branches. In spring into mid-summer appear the bright golden yellow disk flowers are held in flat heads (compound corymbs) at branch tips. These flowers with 30 to 60 tiny individual florets held in 15 to 20 button-like heads are very showy against the green foliage and are honey scented.

Plant in full sun in well-draining soil and given only occasional to infrequent irrigation - this is a drought tolerant plant that can grow in near seaside conditions and is cold hardy to 20-25 degrees F. A great plant with flowers that are long-lasting on a garden plant or in the vase as a cut flower and it attracts honey bees, butterflies and other pollinators.

Athanasia dentata occurs from the Cape Peninsula and East Cape in South Africa on dry, sandy coastal slopes. The name for the genus comes from the Greek words 'a' meaning "without" and 'thanatos' meaning "death" in reference to the persistent dry around the flowers, which remain on the plant long after it has finished flowering. The specific epithet means "toothed" in reference to the serrations on the leaves.

We thank Ryan Deering, the horticulturist at the University of California Davis Arboretum for recommending this plant and providing the stock plants for us to take cutting from in 2022. Ryan noted that this plant had then been growing in their arboretum for over ten years and that it has always looked attractive and not seeded out anywhere. He noted that they also have the related Hymenolepis crithmifolia in the garden and while it extremely showy, for them it gets a bit large and needs to be cut back hard every few years but Athanasia dentata does not require this. 

The information displayed on this page about Athanasia dentata is based on the research we have conducted about it in our nursery library as well as from information provided by reliable online resources. We also include our own observations made about this plant as it grows in the nursery gardens and other gardens visited, as well how the crops of this plant have performed in the containers in our nursery field. We will also incorporate comments that we have received from others and welcome hearing from anyone with information about this plant, particularly if it includes cultural information that will aid others to better grow it.

 
San Marcos Growers, established in 1979, closed for regular business on December 23rd 2025 as the property will be developed for affordable housing.
The gates are closed but we will be open by appointment only as we liquidate remaining plants, supplies and equipment. Our remaining plants are listed on our Live Inventory Page.