treeN. America Native

Native Flame American Hornbeam

Carpinus caroliniana 'Native Flame'

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Tree

Height

300 inches

Width

210 inches

Light

Full Sun, Partial Sun, Shade

Zones

4, 5, 6, 7, 8, 9

Water

Moderate to high

Humidity

Prefers high

Lifespan

50-150 years

Native To

Eastern North America

Toxicity

Non-toxic

The Story

Plant Bio

Carpinus caroliniana, also known as musclewood or ironwood, is a slow-growing, deciduous understory tree native to eastern North America. It is prized for its smooth, gray, fluted bark that resembles flexed muscles. 'Native Flame' is a cultivar selected for its consistently brilliant orange-red to red fall color, which is more reliable and vibrant than the species. It also has a more uniform, upright oval shape.

Bloom Period:

EarlyLate

Uses & Benefits:

A superb small ornamental tree valued for its unique, fluted, muscle-like gray bark that provides year-round interest. The 'Native Flame' cultivar adds spectacular and reliable orange-red fall color to its list of attributes.

Its small stature and high shade tolerance make it an excellent choice for planting under the canopy of larger trees, in tight spaces, or in naturalized woodland settings. The wood is extremely hard and dense, hence the name 'ironwood'.

As a native tree, it supports local ecosystems. The seeds (nutlets) are eaten by various songbirds, grouse, and small mammals. Its dense foliage provides cover and nesting sites for birds.

Marketplace

Where to Buy

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Planting

How to Grow

Choose a site from full sun to shade with moist, well-drained soil.
Dig a hole two to three times wider than the root ball.
Set the tree so the root flare is visible at the soil line.
Backfill with native soil, watering gently to remove air pockets.
Water regularly for the first few years, especially in dry weather.
Apply a 2-3 inch layer of organic mulch around the base.

Pro Tip

This tree thrives in moist, rich soil. Mulching with leaf mold or compost will help it establish and mimic its native woodland conditions.

Keep It Thriving

Care Guide

Do

Provide consistent moisture, especially when planted in full sun.
Mulch annually to keep the root zone cool and moist.
Be patient; it is a slow-growing but long-lived tree.
Appreciate its unique muscular bark, especially in winter.

Don't

Don't let the soil dry out completely for extended periods.
Avoid planting in hot, dry, exposed sites without supplemental water.
Don't perform heavy pruning, as it has a beautiful natural form.
Avoid damaging the thin bark with mowers or string trimmers.

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Mulch
Plant
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Stunning understory tree for woodland gardensSmall specimen tree with brilliant fall colorShade-tolerant tree for naturalized areas

Companion Plants

Fagus grandifolia Acer saccharum Lindera benzoin Polystichum acrostichoides Asarum canadense

Multiply

Propagation Methods

Good to Know

Common Questions

Native Flame American Hornbeam questions

What zones can Native Flame American Hornbeam grow in?

Native Flame American Hornbeam is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Native Flame American Hornbeam deer resistant?

Yes — Native Flame American Hornbeam is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Native Flame American Hornbeam bloom?

Native Flame American Hornbeam typically blooms in mid-spring through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Native Flame American Hornbeam need full sun?

Native Flame American Hornbeam does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.