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Wafer-ash

Ptelea trifoliata

Last reviewed: September 2026

Ptelea trifoliata is a small deciduous tree with clusters of fragrant greenish white flowers from May through July, growing well in dry woodlands and rocky slopes with full sun to partial shade.

Wafer-ash (Ptelea trifoliata)
Photo: (c) Tom Norton, some rights reserved (CC BY)

Toxicity unknown

Wafer-ash (Ptelea trifoliata) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

The USDA PLANTS Database (opens in new tab) does not flag Wafer-ash as toxic to livestock.

Light

full sun

Water

low

Size

180"–300" H × 180"–300" W

Bloom

May, Jun, Jul

Native to

AL, AR, AZ, CO and 35 more states

Pollinators

bees, butterflies, beetles

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Wafer-ash is a small native tree that grows 15-25 feet tall and wide, forming a rounded canopy. It produces clusters of small greenish-white flowers in late spring and summer, followed by distinctive papery, circular seed pods. This drought-tolerant tree adapts well to various soil conditions and provides good shade for smaller spaces.

Growing Wafer-ash

Grow Wafer-ash in full sun and low water. Mature plants reach 180 to 300 inches tall and spread 180 to 300 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Wafer-ash is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.

Works well in: front yard, foundation, street edge, mid zone.

  • Seed pods may be considered messy by some HOAs

Wildlife value

Host plant for Giant Swallowtail butterfly.

The flowers attract bees, butterflies, and beetles during the long blooming period from May through July. The seeds provide food for birds and small mammals.

Common questions

When does Ptelea trifoliata bloom?
Ptelea trifoliata typically flowers from May through July, producing small clusters of greenish white blossoms with a citrus-like fragrance.
What pollinators visit Ptelea trifoliata flowers?
The flowers draw bees, butterflies and beetles, which visit for nectar and pollen during the summer bloom period.
How much water does Ptelea trifoliata need once established?
Once established, this tree tolerates low water levels and prefers dry to medium moisture sites with well drained soil.
What light conditions suit Ptelea trifoliata best?
It grows best in full sun but also tolerates partial sun and partial shade, making it suitable for woodland edges and open slopes.
Is Wafer-ash toxic to livestock?
The USDA PLANTS Database does not flag Wafer-ash as toxic to livestock.
Is Wafer-ash HOA-friendly?
Wafer-ash is generally an HOA-friendly choice in the right placement, with low maintenance.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

Ready to grow Wafer-ash? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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