North America Native Plant

Boxthorn Fiddlewood

Botanical name: Citharexylum brachyanthum

USDA symbol: CIBR3

Life cycle: perennial

Habit: shrub

Native status: Native to the lower 48 states  

Synonyms: Citharexylum spathulatum Moldenke & Lundell (CISP)   

Boxthorn Fiddlewood: A Rare Texas Native Worth Growing Responsibly If you’re looking to add a unique native shrub to your Texas landscape, boxthorn fiddlewood (Citharexylum brachyanthum) might just be the hidden gem you’ve been searching for. This charming perennial shrub brings both beauty and ecological value to the garden, though ...

Rare plant alert!

Region: Conservation status by state

Status: S2S3Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Boxthorn Fiddlewood: A Rare Texas Native Worth Growing Responsibly

If you’re looking to add a unique native shrub to your Texas landscape, boxthorn fiddlewood (Citharexylum brachyanthum) might just be the hidden gem you’ve been searching for. This charming perennial shrub brings both beauty and ecological value to the garden, though its rarity means you’ll want to source it thoughtfully.

What Is Boxthorn Fiddlewood?

Boxthorn fiddlewood is a multi-stemmed woody shrub that typically grows 13 to 16 feet tall, though it can sometimes reach greater heights depending on growing conditions. As a true Texas native, this perennial plant has adapted perfectly to the Lone Star State’s challenging climate. You might also see it listed under its botanical synonym, Citharexylum spathulatum.

Where Does It Grow Naturally?

This distinctive shrub calls Texas home, naturally occurring in the southern regions of the state and extending into northeastern Mexico. Its limited native range makes it a special addition to any native plant collection.

A Word About Rarity

Here’s something important to know: boxthorn fiddlewood has a Global Conservation Status of S2S3Q, which indicates it may be uncommon to rare in its native range. If you’re interested in growing this plant, please source it only from reputable native plant nurseries that propagate their stock responsibly rather than collecting from wild populations.

Why Grow Boxthorn Fiddlewood?

Despite its rarity—or perhaps because of it—there are compelling reasons to include this native in your landscape:

  • Pollinator magnet: The small, fragrant white flower clusters attract butterflies, bees, and other beneficial insects
  • Low maintenance: Once established, it’s quite drought tolerant and requires minimal care
  • Native authenticity: Perfect for authentic Texas native plant gardens
  • Wildlife value: Provides habitat and food sources for local wildlife
  • Unique character: Its relative rarity makes it a conversation starter in any garden

Growing Conditions and Care

Boxthorn fiddlewood thrives in USDA hardiness zones 9-10, making it well-suited for South Texas and other warm climates. Here’s what it needs to flourish:

  • Sunlight: Full sun to partial shade
  • Soil: Well-draining soil is essential—it won’t tolerate soggy conditions
  • Water: Drought tolerant once established, though regular watering during the first year helps establishment
  • Maintenance: Light pruning after flowering keeps it looking tidy

Perfect Landscape Applications

This versatile shrub works beautifully in several garden styles:

  • Native plant gardens where authenticity matters
  • Drought-tolerant xeriscaping projects
  • Wildlife and pollinator gardens
  • Mixed shrub borders for texture and seasonal interest

The Bottom Line

Boxthorn fiddlewood offers Texas gardeners a chance to grow something truly special—a native shrub that supports local ecosystems while adding unique character to the landscape. Just remember to source it responsibly from reputable nurseries that propagate rather than wild-collect their plants. With proper care and the right growing conditions, this rare native can thrive in your garden while helping preserve a piece of Texas’s natural heritage.

Whether you’re creating a dedicated native plant space or simply want to add some authentic Texas flair to your landscape, boxthorn fiddlewood deserves serious consideration—just make sure you’re doing right by this uncommon treasure.

Boxthorn Fiddlewood

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

Lamiales

Family

Verbenaceae J. St.-Hil. - Verbena family

Genus

Citharexylum L. - fiddlewood

Species

Citharexylum brachyanthum (A. Gray) A. Gray - boxthorn fiddlewood

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