Native plants for wetlands, fields or forests and an eclectic mix of other botanic delights

Ptelea trifoliata

Photo Credit:
H. Zell, CC BY-SA 3.0 , via Wikimedia Commons
Photo Credit:
H. Zell, CC BY-SA 3.0 , via Wikimedia Commons
In Stock
Hop Tree
Plant this as a larval plant for the Giant Swallowtail and the Eastern Black Swallowtail.
Mature Size:
' Height /
' Spread
Expected Size:
Light Preference:
Sun to Part Sun
Soil Preference:
Moist to Dry
$20.50/1 gal.

Ptelea trifoliata, commonly called the Hop Tree, is a dense, rounded, eastern native, deciduous shrub or small tree which occurs in open woods, glades, ravines, thickets and prairies. It typically grows to 10'-20' tall, features compound, trifoliate, shiny, dark green leaves (each leaflet is 2-5" long) which turn greenish yellow in autumn. Terminal clusters (cymes) of tiny white flowers appear in late spring, but are not particularly showy. Carrion flies pollinate the flowers. Flowers give way to pendulous seed clusters, each seed being encased in a thin, circular, winged disc (1" diameter samara). The seeds mature to brown in late summer and persist through most of the winter. This tree has some descriptive common names inluding hop tree (in reference to a prior use of the seeds as a substitute for hops), and wafer ash (in reference to the thin, wafer-like appearance of the seed.

It is one of the few native trees that hosts caterpillars of the Giant Swallowtail and the Eastern Black Swallowtail.  Brewmasters use its fruit is a substitute for hops in beer-making. The species is easily grown in average, dry to medium, well-drained soils in part shade to full shade. It tolerates full sun, and is adaptable to wide range of growing conditions. (Another host tree for the black swallowtail is Prickly Ash, Zanthoxylum americanum, which grows from zone 3 to below the Mason-Dixon line and west to Nebraska.) Other host plants of the black swallowtail include Cow Parsnip, Dill, Fennel, Forked Scaleseed, Golden Alexanders, Northern Water Hemlock (poisonous), Parsley, Parsnip, Poison Hemlock, Queen Anne’s Lace, Rue, and Yarrow.

Ptelea adapts to almost any soil and sun situation. There are no serious insect or disease problems, although there is some susceptibility to leaf spotting.

This tree or multi-stemmed large shrub can be used as a specimen or in groups. It can be effective as a large, informal hedge or screen.

Information adapted from: Missouri Botanical Garden

Second Photo Courtesy of: SEWilco, CC BY-SA 3.0 <>, via Wikimedia Commons

Missouri Botanical Garden
No additional images.
Photo(s) Credit:
SEWilco, CC BY-SA 3.0 <>, via Wikimedia Commons

Prices listed are subject to change, based upon size change and availability.

We are a small local nursery with limited shipping capability. We will do our best to ship smaller material (usually 1 or 2 gallon), although we can sometimes ship larger plants with the pots removed.

We have some species that are not listed, as we have too few of them to make a full listing plausible. You can always inquire.

We will consider contract growing an order with appropriate advance notice and availability of seed, cuttings or lining out stock.

Spring Business Hours
10 - 6
10 - 6
By Appointment
10 - 6
10 - 5
10 - 5
11 - 3
Kollar Nursery | 5200 West Heaps Road, Pylesville, MD 21132 | 410.836.0500
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