North America Native Plant

Largebract Spiderling

Botanical name: Boerhavia wrightii

USDA symbol: BOWR

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Largebract Spiderling: A Charming Desert Native for Water-Wise Gardens If you’re looking for a delicate yet resilient native plant that thrives in hot, dry conditions, meet the largebract spiderling (Boerhavia wrightii). This unassuming annual might not win any flashy flower contests, but it’s got personality and purpose that make it ...

Largebract Spiderling: A Charming Desert Native for Water-Wise Gardens

If you’re looking for a delicate yet resilient native plant that thrives in hot, dry conditions, meet the largebract spiderling (Boerhavia wrightii). This unassuming annual might not win any flashy flower contests, but it’s got personality and purpose that make it a wonderful addition to drought-tolerant landscapes.

What Is Largebract Spiderling?

Largebract spiderling is a native annual plant that calls the American Southwest home. True to its spiderling name, this low-growing plant spreads across the ground with a somewhat sprawling habit, creating a delicate carpet of small heart-shaped leaves and tiny flowers. Despite its diminutive size, this little native packs a punch when it comes to drought tolerance and ecological value.

Where Does It Grow Naturally?

This southwestern native thrives across five states: Arizona, California, Nevada, New Mexico, and Texas. It’s perfectly adapted to the desert and semi-desert regions where summer heat and winter cold can both be extreme, and rainfall is precious and unpredictable.

Why You Might Want to Grow Largebract Spiderling

Here’s what makes this native plant special:

  • Ultra drought-tolerant: Once established, it needs virtually no supplemental watering
  • Pollinator magnet: The small flowers attract bees, butterflies, and other beneficial insects
  • Self-seeding: As an annual, it readily self-sows for next year’s display
  • Low maintenance: Perfect for gardeners who want beauty without fuss
  • Native plant benefits: Supports local ecosystems and wildlife

What Does It Look Like?

Largebract spiderling won’t overwhelm your garden with bold colors, but its subtle beauty is quite charming. The plant produces clusters of tiny white to pale pink flowers that seem to float above the foliage. The heart-shaped leaves are small and somewhat succulent, helping the plant conserve precious moisture. It typically grows low to the ground, spreading rather than growing tall, making it an excellent ground cover option.

Perfect Garden Settings

This native thrives in:

  • Desert and xeriscape gardens
  • Rock gardens
  • Native plant landscapes
  • Naturalistic prairie-style gardens
  • Areas with poor, sandy, or rocky soil
  • Spots where other plants struggle with heat and drought

Growing Conditions and Care

Sunlight: Full sun is essential – this plant loves basking in bright, hot sunshine.

Soil: Well-draining soil is crucial. Sandy, rocky, or gravelly soils work perfectly. Heavy clay or constantly moist soil will likely kill it.

Water: Minimal watering once established. In fact, overwatering is more likely to harm this plant than underwatering.

Climate: Best suited for USDA hardiness zones 8-11, where it can complete its annual lifecycle.

Planting and Care Tips

  • Seeding: Direct sow seeds in spring after the last frost date
  • Spacing: Seeds can be scattered broadly as plants will find their own spacing
  • Watering: Water lightly until germination, then reduce to minimal amounts
  • Fertilizing: No fertilizer needed – rich soil can actually harm desert natives
  • Maintenance: Let plants go to seed naturally for next year’s crop

A Few Things to Consider

While largebract spiderling is wonderful for the right setting, it might not be the best choice if you’re looking for showy blooms or plants that thrive in rich, moist garden soil. This is definitely a plant for those who appreciate subtle beauty and want to support native ecosystems with minimal effort.

The flowers and overall appearance are quite small and delicate, so it works best in naturalistic settings rather than formal flower beds where you want bold color impact.

The Bottom Line

Largebract spiderling is a perfect choice for gardeners who want to embrace native plants, create habitat for pollinators, and enjoy a beautiful landscape that works with nature rather than against it. If you’re gardening in the Southwest and looking for authentic regional character with minimal water needs, this charming little native deserves a spot in your landscape.

Once you see how effortlessly it grows and how much the local wildlife appreciates it, you’ll wonder why more gardeners don’t know about this delightful desert dweller.

Largebract Spiderling

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Caryophyllales

Family

Nyctaginaceae Juss. - Four o'clock family

Genus

Boerhavia L. - spiderling

Species

Boerhavia wrightii A. Gray - largebract spiderling

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