North America Native Plant

Squarebud Daisy

Botanical name: Tetragonotheca texana

USDA symbol: TETE2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Squarebud Daisy: A Delightful Texas Native Worth Discovering If you’re looking to add a touch of Lone Star charm to your garden, meet the squarebud daisy (Tetragonotheca texana) – a cheerful native perennial that’s as unique as its name suggests. This delightful Texas wildflower might not be the most famous ...

Squarebud Daisy: A Delightful Texas Native Worth Discovering

If you’re looking to add a touch of Lone Star charm to your garden, meet the squarebud daisy (Tetragonotheca texana) – a cheerful native perennial that’s as unique as its name suggests. This delightful Texas wildflower might not be the most famous bloom in the state, but it certainly deserves a spot in your native plant wish list.

What Makes Squarebud Daisy Special?

The squarebud daisy gets its quirky common name from its distinctive square-shaped flower buds that appear before the bright yellow blooms unfold. As a member of the sunflower family, this herbaceous perennial produces cheerful daisy-like flowers that bring sunny disposition to any garden space. The plant is a true forb – meaning it’s a soft-stemmed flowering plant without woody tissue, perfect for adding texture and color to naturalized areas.

Where Does It Call Home?

This charming native is exclusively Texan, found primarily in the eastern and southeastern regions of the state. As a plant that’s perfectly adapted to Texas conditions, it knows how to handle the heat, humidity, and occasional drought that characterize much of the region.

Why Plant Squarebud Daisy?

There are several compelling reasons to consider adding this native beauty to your landscape:

  • True Texas native: Support local ecosystems by choosing plants that naturally belong in your area
  • Pollinator magnet: The bright yellow flowers attract native bees, butterflies, and other beneficial insects
  • Low maintenance: Once established, this perennial requires minimal care and attention
  • Drought tolerant: Perfect for water-wise gardening in Texas climates
  • Unique character: Those square buds make for interesting conversation starters in the garden

Perfect Garden Spots

Squarebud daisy shines in several garden settings:

  • Native wildflower gardens
  • Prairie and meadow plantings
  • Naturalized landscape areas
  • Native plant borders and mixed perennial beds
  • Wildlife habitat gardens

Growing Conditions and Care

This adaptable native is surprisingly easy to please. Squarebud daisy thrives in USDA hardiness zones 8-9, making it well-suited for most of Texas. Here’s what it needs to flourish:

Sunlight: Prefers full sun but can tolerate partial shade, especially during the hottest part of the day.

Soil: Adaptable to various soil types including clay and sandy soils. Good drainage is appreciated, but the plant is quite forgiving.

Water: Drought tolerant once established, but benefits from occasional deep watering during prolonged dry spells.

Spacing: Allow room for natural spreading, as this perennial can expand through underground rhizomes over time.

Planting and Care Tips

Getting started with squarebud daisy is refreshingly straightforward:

  • Plant in spring or fall when temperatures are moderate
  • Water regularly during the first growing season to help establish strong roots
  • Once established, reduce watering frequency – this native prefers occasional deep drinks over frequent shallow watering
  • Allow the plant to naturalize and spread gradually for best results
  • Minimal fertilization needed – native soils typically provide adequate nutrition
  • Deadhead spent flowers to encourage continued blooming, or leave them for wildlife

A Note About Sourcing

Since squarebud daisy is a specialized Texas native, you might need to seek out native plant nurseries or specialty wildflower suppliers. Always choose responsibly sourced plants or seeds, and consider connecting with local native plant societies for the best sources in your area.

The Bottom Line

Squarebud daisy may be a lesser-known native, but that’s part of its charm. By choosing this authentic Texas wildflower, you’re not just adding beauty to your garden – you’re supporting local ecosystems, providing for pollinators, and celebrating the unique botanical heritage of the Lone Star State. Plus, those distinctive square buds are sure to spark curiosity and conversation among fellow garden enthusiasts!

Squarebud 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

Tetragonotheca L. - nerveray

Species

Tetragonotheca texana Engelm. & A. Gray ex A. Gray - squarebud daisy

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