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Publication #ENH470

Ilex vomitoria: Yaupon Holly1

Edward F. Gilman and Dennis G. Watson2

Introduction

This upright, spreading small evergreen tree or large shrub, capable of reaching 15 to 25 feet in height with a similar spread, has small, grey-green, leathery leaves densely arranged along smooth, stiff, light grey branches. Plants in the landscape require about 10-years to develop a distinct vase-shape. Sometimes clipped into a tight hedge, Yaupon Holly is ideal for training into a small tree with lower branches removed to reveal the interestingly-contorted multiple trunks. It can also be used for topiaries, espaliers, specimens, screens, or barriers. The non-showy male and female flowers appear on separate plants and are followed on the female plants by the production of brilliant red berries (yellow on some cultivars) which are quite attractive to wildlife. The flowers attract bees for several weeks. Purchase plants with berries on them (females) if you want a berry-producing plant, or buy trees which were propagated from cuttings of female plants.

Figure 1. 

Middle-aged Ilex vomitoria: Yaupon Holly


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General Information

Scientific name: Ilex vomitoria
Pronunciation: EYE-lecks vom-ih-TOR-ee-uh
Common name(s): Yaupon Holly
Family: Aquifoliaceae
USDA hardiness zones: 7A through 9B (Fig. 2)
Origin: native to North America
Invasive potential: weedy native
Uses: parking lot island < 100 sq ft; parking lot island 100-200 sq ft; parking lot island > 200 sq ft; tree lawn 3-4 feet wide; tree lawn 4-6 feet wide; tree lawn > 6 ft wide; street without sidewalk; espalier; hedge; deck or patio; screen; specimen; container or planter; sidewalk cutout (tree pit); urban tolerant; highway median; Bonsai
Availability: not native to North America

Figure 2. 

Range


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Description

Height: 15 to 25 feet
Spread: 15 to 20 feet
Crown uniformity: symmetrical
Crown shape: vase, round
Crown density: open
Growth rate: moderate
Texture: fine

Foliage

Leaf arrangement: alternate (Fig. 3)
Leaf type: simple
Leaf margin: serrulate, crenate
Leaf shape: ovate
Leaf venation: brachidodrome, pinnate, reticulate
Leaf type and persistence: evergreen
Leaf blade length: less than 2 inches
Leaf color: green
Fall color: no color change
Fall characteristic: not showy

Flower

Flower color: white/cream/gray
Flower characteristics: not showy

Fruit

Fruit shape: round
Fruit length: less than .5 inch
Fruit covering: fleshy
Fruit color: red
Fruit characteristics: attracts birds; showy; fruit/leaves not a litter problem

Trunk and Branches

Trunk/bark/branches: branches droop; not showy; typically multi-trunked; thorns
Pruning requirement: little required
Breakage: resistant
Current year twig color: gray
Current year twig thickness: thin
Wood specific gravity: unknown

Culture

Light requirement: full sun, partial sun or partial shade, shade tolerant
Soil tolerances: clay; sand; loam; alkaline; acidic; extended flooding; well-drained
Drought tolerance: high
Aerosol salt tolerance: high

Other

Roots: not a problem
Winter interest: yes
Outstanding tree: no
Ozone sensitivity: unknown
Verticillium wilt susceptibility: resistant
Pest resistance: resistant to pests/diseases

Figure 3. 

Foliage


[Click thumbnail to enlarge.]

Use and Management

A tough native of the southern United States, Yaupon Holly grows quickly in a variety of locations, from full sun or shade to seaside or swamps, in sand or clay. Crowns will be thin in the shade. It will grow in soil with a pH in the 7's and is very tolerant of drought and sea salt, It sprouts readily from the roots forming clumps of upright shoots beneath the canopy. Sprouting is most troublesome if the soil beneath the canopy is disturbed, as in planting shrubs or flowers under the tree. These need to be pruned to the ground two or three times each year to maintain a neat appearance. Consider this when selecting trees for use on streets, parking lots, and other low-maintenance areas since thickets often form.

Yaupon Holly is one of the most durable and adaptable of the small-leaved evergreen Hollies for use in southern landscapes. It grows well throughout its range in sidewalk cutouts and other sites with limited exposed soil. Wild Yaupons are protected by Florida statute.

A few of the available cultivars include: `Folsom's Weeping', similar to `Pendula'; `Jewel', female plant with heavy fruit production; `Nana', dwarf, compact shrub form, male plant, no berries; `Pendula' (`Grey's Weeping'), large weeping specimen, sparsely foliated, to 35 feet tall; `Pride of Houston', medium-sized shrub with heavy fruit production; and a low shrub called `Schelling's Dwarf' (`Stroke's Dwarf'), more compact than `Nana'. Yellow-fruited cultivars include: `Aureo', yellow berries; `Otis Miley', small leaves, yellow fruit; `Wiggins' Yellow', yellow fruit.

Propagation is by seeds or cuttings.

Pests

Scale, leaf miners, mites, aphids appear to form a long list of problems, but none are normally serious.

Diseases

No diseases are of major concern.

Footnotes

1.

This document is ENH470, one of a series of the Environmental Horticulture, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date November 1993. Revised December 2006. Reviewed May 2011. Visit the EDIS website at http://edis.ifas.ufl.edu.

2.

Edward F. Gilman, professor, Environmental Horticulture Department; Dennis G. Watson, former associate professor, Agricultural Engineering Department, Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611.


The Institute of Food and Agricultural Sciences (IFAS) is an Equal Opportunity Institution authorized to provide research, educational information and other services only to individuals and institutions that function with non-discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions or affiliations. For more information on obtaining other UF/IFAS Extension publications, contact your county's UF/IFAS Extension office.

U.S. Department of Agriculture, UF/IFAS Extension Service, University of Florida, IFAS, Florida A & M University Cooperative Extension Program, and Boards of County Commissioners Cooperating. Nick T. Place, dean for UF/IFAS Extension.