North America Native Plant

Wilcox’s Phlox

Botanical name: Phlox drummondii wilcoxiana

USDA symbol: PHDRW

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Phlox drummondii Hook. var. wilcoxiana (Bogusch) Whitehouse (PHDRW2)   

Wilcox’s Phlox: A Hidden Gem for Texas Native Gardens If you’re on the hunt for a charming native wildflower that’s as tough as it is beautiful, let me introduce you to Wilcox’s phlox (Phlox drummondii wilcoxiana). This delightful little annual might not be the showiest plant in your garden, but ...

Wilcox’s Phlox: A Hidden Gem for Texas Native Gardens

If you’re on the hunt for a charming native wildflower that’s as tough as it is beautiful, let me introduce you to Wilcox’s phlox (Phlox drummondii wilcoxiana). This delightful little annual might not be the showiest plant in your garden, but it’s got character, resilience, and a special place in Texas’s natural heritage.

What Makes Wilcox’s Phlox Special?

Wilcox’s phlox is a native Texas annual that belongs to the forb family—basically, it’s a non-woody flowering plant that completes its entire life cycle in one growing season. Don’t let its modest stature fool you; this little wildflower packs a punch when it comes to supporting local ecosystems and adding authentic Texas charm to your landscape.

You might also see this plant referred to by its scientific synonym, Phlox drummondii Hook. var. wilcoxiana, but let’s stick with the simpler name, shall we?

Where Does It Call Home?

This phlox is a true Texan through and through. It’s found exclusively in the Lone Star State, making it a genuinely local choice for native plant enthusiasts. When you plant Wilcox’s phlox, you’re not just adding a pretty flower to your garden—you’re preserving a piece of Texas’s natural heritage.

Why Your Garden (and Local Wildlife) Will Love It

Here’s where Wilcox’s phlox really shines:

  • Pollinator magnet: Butterflies, bees, and other small pollinators absolutely adore phlox flowers
  • Low maintenance: Once established, it’s remarkably drought-tolerant and self-sufficient
  • Natural reseeding: This thoughtful little plant will often reseed itself, giving you more flowers next year
  • Authentic native appeal: Perfect for wildflower meadows, naturalized areas, and native plant collections

Growing Wilcox’s Phlox Successfully

The beauty of native plants is that they’re already adapted to local conditions, and Wilcox’s phlox is no exception. Here’s how to give it the best start:

Ideal Growing Conditions

  • Sunlight: Full sun to partial shade (it’s pretty flexible!)
  • Soil: Well-drained soils are essential—soggy roots are this plant’s kryptonite
  • Climate: Thrives in USDA hardiness zones 8-10, perfect for most of Texas
  • Water: Drought-tolerant once established, but appreciates occasional watering during dry spells

Planting and Care Tips

The best time to plant Wilcox’s phlox is in fall, which allows the seeds to experience the natural winter chill they need for spring germination. Direct seeding works beautifully—just scatter the seeds in your chosen spot and let nature do the rest.

Once your phlox is growing, resist the urge to coddle it. These hardy natives prefer a hands-off approach. Avoid overwatering and heavy fertilization, which can actually weaken the plant and make it more susceptible to problems.

Perfect Garden Companions

Wilcox’s phlox plays well with other Texas natives. Consider pairing it with bluebonnets, Indian paintbrush, or native grasses for a authentic wildflower meadow look. It’s also lovely in native plant borders or as part of a pollinator garden.

The Bottom Line

While Wilcox’s phlox might not be the flashiest flower in the nursery catalog, it offers something more valuable: authenticity, ecological benefits, and the satisfaction of growing a truly local plant. If you’re working on a native Texas landscape or simply want to support local pollinators with minimal effort, this charming little annual deserves a spot in your garden.

Remember, gardening with natives isn’t just about the plants—it’s about connecting with your local ecosystem and creating spaces where both people and wildlife can thrive. Wilcox’s phlox is a perfect ambassador for that mission.

Wilcox’s Phlox

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

Solanales

Family

Polemoniaceae Juss. - Phlox family

Genus

Phlox L. - phlox

Species

Phlox drummondii Hook. - annual phlox

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