North America Non-native Plant

Hamilton’s Spindletree

Botanical name: Euonymus hamiltonianus maackii

USDA symbol: EUHAM2

Life cycle: perennial

Habit: shrub

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

Synonyms: Euonymus hamiltoniana Wall ssp. maackii (Rupr.) Kom., orth. var. (EUHAM)   

Hamilton’s Spindletree: A Non-Native Shrub with Seasonal Charm If you’ve ever wondered about that eye-catching shrub with the brilliant fall colors and curious pink fruits, you might be looking at Hamilton’s spindletree (Euonymus hamiltonianus maackii). This deciduous shrub has been making itself at home in parts of the Midwest, though ...

Hamilton’s Spindletree: A Non-Native Shrub with Seasonal Charm

If you’ve ever wondered about that eye-catching shrub with the brilliant fall colors and curious pink fruits, you might be looking at Hamilton’s spindletree (Euonymus hamiltonianus maackii). This deciduous shrub has been making itself at home in parts of the Midwest, though it’s originally from much farther away.

What Is Hamilton’s Spindletree?

Hamilton’s spindletree is a perennial shrub that typically grows as a multi-stemmed woody plant, usually staying under 13-16 feet tall. Don’t let the scientific name intimidate you – this plant is also known by the synonym Euonymus hamiltoniana Wall ssp. maackii, but Hamilton’s spindletree rolls off the tongue much easier!

Where Does It Come From?

Here’s where things get interesting: Hamilton’s spindletree isn’t actually native to North America. This Asian native originally hails from eastern regions of China, Korea, and eastern Russia. However, it has established itself as a non-native species in parts of the United States, specifically in Illinois, Indiana, and Michigan, where it reproduces on its own without human help.

The Appeal Factor

So what makes this shrub catch people’s attention? Hamilton’s spindletree puts on quite a show, especially in fall when its foliage transforms into stunning shades of orange and red. But the real conversation starter comes with its unique fruits – small pink-red capsules that split open to reveal bright orange seeds. It’s like nature’s own little surprise package!

Growing Conditions and Care

If you’re considering adding Hamilton’s spindletree to your landscape, here’s what you need to know about keeping it happy:

  • Hardiness: Thrives in USDA zones 3-7, making it quite cold-tolerant
  • Light requirements: Adaptable from partial shade to full sun
  • Soil needs: Not particularly picky about soil types, though moderate moisture is preferred
  • Maintenance: Generally low-maintenance once established
  • Pruning: If needed, prune in late winter before new growth begins

Garden Role and Design Uses

Hamilton’s spindletree works well in several landscape scenarios. It’s particularly suited for woodland gardens, naturalized areas, and mixed shrub borders where its seasonal interest can shine. The shrub provides structure during the growing season and becomes a real showstopper in autumn.

Benefits for Wildlife and Pollinators

While Hamilton’s spindletree does produce small flowers that can provide nectar for various insects, the wildlife benefits aren’t as well-documented as they are for native alternatives.

Should You Plant It?

Since Hamilton’s spindletree is non-native but doesn’t appear to be classified as invasive or noxious in most areas, the choice is really yours. It can certainly add seasonal interest to your landscape and isn’t particularly difficult to grow. However, if you’re passionate about supporting local ecosystems, you might want to consider native alternatives that provide similar aesthetic appeal while offering greater benefits to local wildlife.

Some native alternatives to consider include native viburnums, elderberries, or native dogwoods, which can provide similar seasonal interest while supporting local pollinators and wildlife more effectively.

The Bottom Line

Hamilton’s spindletree is an adaptable shrub that can add color and interest to your garden, particularly in fall. While it’s not native to North America, it’s established itself in certain regions and can be a reasonable choice for gardeners looking for low-maintenance seasonal appeal. Just remember to consider how your plant choices fit into the bigger picture of supporting local ecosystems – sometimes the most beautiful gardens are the ones that work hand-in-hand with nature’s original plan!

Hamilton’s Spindletree

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Celastrales

Family

Celastraceae R. Br. - Bittersweet family

Genus

Euonymus L. - spindletree

Species

Euonymus hamiltonianus Wall. - Hamilton's spindletree

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