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Native Plant Society of Texas

Prairie Celestials

Nemastylis geminiflora

Other common name(s):

Celestials, Prairie Pleatleaf

Family:

Iridaceae (Iris Family)

Plant Ecoregion Distribution Map

This map uses data from the US EPA. EPA  servers have been offline frequently so maps may not display. We are working on a solution.

Central Great Plains, Cross Timbers, East Central Texas Plains, Edwards Plateau, Texas Blackland Prairies, Western Gulf Coastal Plain
Broken Red Plains, Limestone Plains
Carbonate Cross Timbers, Eastern Cross Timbers, Grand Prairie, Limestone Cut Plain, Western Cross Timbers
Bastrop Lost Pines, Floodplains and Low Terraces2, Northern Post Oak Savanna, Northern Prairie Outliers, San Antonio Prairie, Southern Post Oak Savanna
Balcones Canyonlands, Edwards Plateau Woodland, Llano Uplift
Floodplains and Low Terraces1, Northern Blackland Prairie, Southern Blackland Prairie
Flatwoods, Floodplains and Low Terraces3, Pleistocene Fluvial Terraces, Red River Bottomlands, Southern Tertiary Uplands, Tertiary Uplands

Plant Characteristics

Growth Form

Herbaceous

Height

.5
to
1
ft.

Spread

.25
to
.5
ft.

Leaf Retention

Deciduous

Lifespan

Perennial

Habitat and Care Requirements

Soil Type(s)

Clay, Dry, Limestone, Loam, Sand, Well Drained

Light Requirement

Sun, Part Shade

Water Requirement

Medium

Native Habitat

Grassland, Savanna

Bloom and Attraction

Bloom Color

Blue

Bloom Season

Spring

Seasonal Interest

Nectar, Pollen

Wildlife Benefit

Bees, Butterflies, Nectar Insects

Maintenance

Drought resistant and low maintenance. Overwatering can result in root rot. Grows in a variety of soils. Can be used in the garden: wildflower meadow, shortgrass meadow, ground cover. Native habitat: prairie, plains, meadows, pastures, savannas.

Description

Blooms March-May. Stems sturdy, usually branched, mainly from the base. Leaf blade narrow, linear. Flowers are star-shaped with 6 petals. Bloom period about 2 weeks, with each flower surviving only one day, opening in the morning and closing late afternoon. The bulbs colonize over time. The fruit is a capsule.
Previous Scientific Name(s): Ixia acuta, Nemastylis acuta

References

Learn about how to propagate Texas native plants.

Material Treatment Method Collection References
Bulb Division Separate bulbs with care, replant in well-drained soil, in a sunny location. Place each corm 2-3 inches deep and 6-8 inches apart. Maintain adequate moisture to support rooting. After the foliage has yellowed and died back in late summer or early fall, carefully dig up your Prairie Celestial plants. You’ll find small, bulb-like structures clustered around the base of the original corm. These are the new corms, ready to grow into new plants. 1) https://www.picturethisai.com/wiki/Nemastylis_geminiflora.html#:~:text=Propagation:%20Prairie%20pleatleaf%20can%20be,Hydrangea%20macrophylla 2) https://propagate.one/how-to-propagate-nemastylis-geminiflora/
Seed Stratification Seeds can be somewhat slow to germinate. Don’t despair if you don’t see sprouts immediately in the spring. Be patient and maintain consistent moisture, and you will be rewarded with delicate seedlings. Prairie Celestial seeds benefit from a period of cold stratification to mimic natural winter conditions. In fall, sow the seeds directly in your garden or in pots filled with a well-draining seed starting mix. Gently press the seeds into the soil, but avoid burying them too deep. Over winter, the cold temperatures will work their magic, preparing the seeds for germination in the spring. Keep a watchful eye on your plants in late spring or early summer as the flowers fade. You’ll notice small seed capsules developing where the blooms once were. Allow these capsules to dry completely on the plant, turning brown and papery. Once dry, carefully collect the capsules and extract the small, black seeds within. https://propagate.one/how-to-propagate-nemastylis-geminiflora/

About the Region

2026 Fall Symposium Logo

This low-elevations region of Texas extends inland from the barrier islands, about 60 or so miles, and stretches from Brownsville to Louisiana. In total, it covers about 9.5 million acres, with a high point of 150 feet in elevation. More than 1000 species of plants can be found in this region. On the southern end, species more common in Mexico (such as Sabal mexicana) and Central America occur.

The barrier islands provide us with dune systems, and clay flats to the inland side, which have species found in these areas alone. Many plants here, such as Ipomoea pes-caprae (beach morning glory), can be found throughout tropical regions of the globe. I’ve encountered the same species on the beaches of Guam.

Once inland, vast marshes and wet prairies occur. Occasionally, oak (Quercus fusiformis) groves can be found. Common grasses include species of Bothriochloa, Paspalum, and Sporobolus; eastern gamagrass (Tripsacum dactyloides); and switchgrass (Panicum species). Many rivers and creeks cut through the Gulf Prairies, and along these riparian areas various species of trees, Sabal minor, and other plants adapted to clay soils can be found. Due to overgrazing, farming, and fire suppression, woody species such as mesquite (Prosopis glandulosa) and huisache (Acacia farnesiana), and invasive species such as chinaberry (Melia azedarach), Brazilian pepper (Schinus terebinthifolius), and Chinese tallow (Sapium sebiferum) have increased and displaced our native flora.

Source: Wildflowers of Texas by Michael Eason