North America Non-native Plant

Parasoltree

Botanical name: Firmiana

USDA symbol: FIRMI

Life cycle: perennial

Habit: shrub

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Parasoltree (Firmiana): An Asian Import Making Its Mark in American Gardens If you’ve ever spotted a tree with impressively large, heart-shaped leaves that seem almost tropical in appearance, you might have encountered a parasoltree. This Asian native has quietly established itself across much of the southeastern United States, bringing its ...

Parasoltree (Firmiana): An Asian Import Making Its Mark in American Gardens

If you’ve ever spotted a tree with impressively large, heart-shaped leaves that seem almost tropical in appearance, you might have encountered a parasoltree. This Asian native has quietly established itself across much of the southeastern United States, bringing its own unique charm to the American landscape.

What Exactly Is a Parasoltree?

The parasoltree (Firmiana) is a perennial shrub that typically grows as a multi-stemmed woody plant, usually reaching heights of 13 to 16 feet, though it can grow taller under the right conditions. Originally from Asia, this non-native species has made itself quite at home in American soil, reproducing naturally without human intervention across multiple states.

Where You’ll Find Parasoltrees Growing

These adaptable plants have spread throughout much of the southeastern United States, currently thriving in Alabama, Arkansas, California, Florida, Georgia, Louisiana, Maryland, Mississippi, North Carolina, South Carolina, Tennessee, Texas, and Virginia. Their ability to establish in such diverse climates speaks to their remarkable adaptability.

The Visual Appeal: What Makes Parasoltrees Stand Out

Parasoltrees are real showstoppers in the landscape, thanks to several distinctive features:

  • Enormous heart-shaped leaves that can reach up to a foot across
  • Smooth, attractive bark that adds winter interest
  • Bright yellow fall foliage that creates a stunning seasonal display
  • Unique, papery seed pods that persist into winter
  • Small, fragrant flowers that appear in summer

Growing Conditions and Care

One of the parasoltree’s greatest strengths is its adaptability. These plants are surprisingly easy-going about their living conditions:

  • Sunlight: Full sun to partial shade
  • Soil: Adaptable to various soil types
  • Water: Moderate water needs; drought tolerant once established
  • USDA Hardiness Zones: 7-10
  • Maintenance: Minimal pruning required

Role in Garden and Landscape Design

Parasoltrees work best as specimen plants or shade trees in larger landscapes. Their substantial size and tropical appearance make them excellent focal points in:

  • Urban landscapes where their pollution tolerance is valued
  • Large residential properties with space to accommodate their size
  • Parks and public spaces
  • Areas where you want to create a bold, architectural statement

Benefits for Wildlife and Pollinators

While parasoltrees do produce small flowers that can attract some pollinators during their blooming period, their wildlife value is generally considered moderate compared to native alternatives.

Should You Plant a Parasoltree?

Here’s where things get interesting. Parasoltrees aren’t native to North America, but they’re not currently classified as invasive either. They’re essentially landscape refugees that have found a new home. If you’re considering adding one to your property, here are some things to think about:

Reasons you might choose a parasoltree:

  • You want a unique, conversation-starting tree
  • You need something tough and adaptable
  • You appreciate bold, tropical-looking foliage
  • You have a large space that can accommodate its size

Reasons you might choose native alternatives instead:

  • You want to support local ecosystems and wildlife
  • You prefer plants with established relationships with native pollinators
  • You’re committed to using only indigenous species

Native Alternatives to Consider

If you love the parasoltree’s bold foliage but prefer native options, consider these alternatives:

  • Catalpa (Catalpa bignonioides) – native with large, heart-shaped leaves
  • Redbud (Cercis canadensis) – smaller heart-shaped leaves with stunning spring flowers
  • Tulip Tree (Liriodendron tulipifera) – large leaves with unique shape and size

The Bottom Line

Parasoltrees are undeniably striking plants that can add dramatic flair to the right landscape. While they’re not native, they’re also not currently considered problematic. If you do decide to plant one, you’ll get a low-maintenance tree with year-round interest and the kind of bold presence that makes neighbors stop and ask, What is that amazing tree? Just make sure you have the space for it to spread its impressive canopy and show off those spectacular leaves.

Parasoltree

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Malvales

Family

Sterculiaceae Vent. - Cacao family

Genus

Firmiana Marsili - parasoltree

Species

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