North America Native Plant

Wishbone-bush

Botanical name: Mirabilis laevis var. villosa

USDA symbol: MILAV

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Hesperonia aspera (Greene) Standl. (HEAS3)  âš˜  Hesperonia bigelovii (A. Gray) Standl. (HEBI6)  âš˜  Mirabilis aspera Greene (MIAS)  âš˜  Mirabilis bigelovii A. Gray (MIBI8)  âš˜  Mirabilis bigelovii A. Gray var. aspera (Greene) Munz (MIBIA)  âš˜  Mirabilis bigelovii A. Gray var. bigelovii (MIBIB)   

Wishbone-Bush: A Hidden Gem for Water-Wise Gardens If you’re looking for a hardy native plant that thrives with minimal fuss, let me introduce you to wishbone-bush (Mirabilis laevis var. villosa). This unassuming perennial might not be the showiest plant in the nursery, but it’s exactly the kind of reliable, drought-tolerant ...

Wishbone-Bush: A Hidden Gem for Water-Wise Gardens

If you’re looking for a hardy native plant that thrives with minimal fuss, let me introduce you to wishbone-bush (Mirabilis laevis var. villosa). This unassuming perennial might not be the showiest plant in the nursery, but it’s exactly the kind of reliable, drought-tolerant native that smart gardeners are adding to their landscapes.

What is Wishbone-Bush?

Wishbone-bush is a native perennial herb that belongs to the four o’clock family. Don’t let the herb classification fool you – this isn’t something you’d toss in your pasta sauce. In botanical terms, it’s simply a non-woody plant that dies back to the ground each winter and returns from its roots in spring.

This southwestern native has earned its place in the landscape through sheer determination and adaptability. While it may have been known by various names throughout history (including several scientific synonyms), wishbone-bush has remained consistently valuable to gardeners who appreciate tough, water-smart plants.

Where Does Wishbone-Bush Call Home?

Wishbone-bush is native to the American Southwest, specifically thriving in Arizona, California, and Nevada. This limited but strategic range tells us everything we need to know about its preferences – it’s built for hot, dry conditions and alkaline soils that would stress many other plants.

Why Choose Wishbone-Bush for Your Garden?

Here’s where wishbone-bush really shines. This plant is the definition of low-maintenance gardening:

  • Drought tolerance: Once established, it needs minimal supplemental watering
  • Native status: Supporting local ecosystems while requiring fewer resources
  • Perennial nature: Returns year after year without replanting
  • Evening blooms: Small, delicate flowers that open in the evening, adding subtle beauty to twilight gardens
  • Pollinator support: Night-blooming flowers attract moths and other nocturnal pollinators

Perfect Garden Settings

Wishbone-bush isn’t trying to be the star of your garden – it’s more like the reliable supporting actor that makes everything else look good. Consider it for:

  • Xeriscapes: Ideal for water-wise landscapes
  • Rock gardens: Thrives in well-draining, rocky conditions
  • Desert gardens: Natural fit for southwestern-style landscaping
  • Naturalized areas: Perfect for low-maintenance, natural-looking spaces

Growing Wishbone-Bush Successfully

The beauty of wishbone-bush lies in its simplicity. This plant practically grows itself once you understand its basic needs:

Hardiness: Suitable for USDA zones 7-10, making it perfect for much of the Southwest and mild winter areas.

Soil requirements: Well-draining soil is non-negotiable. If your soil holds water after rain, add sand, gravel, or plant in raised beds. Clay soil is wishbone-bush’s kryptonite.

Sun exposure: Full sun to partial shade works well, though it performs best with at least 6 hours of direct sunlight.

Watering: Here’s where many gardeners go wrong – less is more. Water deeply but infrequently during establishment, then back off significantly. Overwatering is the quickest way to kill this drought-adapted native.

Planting and Care Tips

Best planting time: Spring or early fall when temperatures are moderate

Spacing: Give plants adequate room for air circulation – crowded conditions can lead to problems

Fertilizing: Skip it. This native is adapted to lean soils and too much nutrition can actually weaken the plant

Pruning: Minimal pruning needed. Simply cut back dead stems in late winter or early spring

Supporting Local Wildlife

While wishbone-bush may seem modest, it plays an important role in supporting local ecosystems. Its evening-opening flowers provide nectar for moths and other nocturnal insects, contributing to the complex web of relationships that keep desert ecosystems healthy.

Is Wishbone-Bush Right for Your Garden?

If you’re in the Southwest looking for a reliable, water-wise native plant that won’t demand constant attention, wishbone-bush deserves consideration. It’s not going to win any flashy garden contests, but it will quietly do its job year after year, supporting local wildlife while requiring minimal resources.

Remember, successful gardening isn’t always about the most spectacular plants – sometimes it’s about choosing the right plant for the right place. For hot, dry locations where you want something genuinely native and drought-tolerant, wishbone-bush might just be the perfect supporting player your garden needs.

Wishbone-bush

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

Mirabilis L. - four o'clock

Species

Mirabilis laevis (Benth.) Curran - desert wishbone-bush

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