Yaupon Holly (Ilex vomitoria) · Species Notes · Short's Resort Field Station

Restoration Role

Evergreen structural shrub. Yaupon provides year-round cover, bright red berries that hold into winter for birds, and a dense, shade-tolerant understory layer. It is one of the most reliable evergreen natives we can establish, and the only caffeine-bearing plant native to the United States.

Site Suitability

PrimaryShelterbelt and woodland edges

SecondaryRiver Conservation Strip, Drainage Savanna Corridor

AvoidExposed open prairie with no canopy

SoilsSeC, BeB, Oa

HydrologyAdaptable; tolerates both dry and periodically wet ground

RangeEdge of range: NPSOT lists yaupon for the Edwards Plateau (Balcones Canyonlands) and the Blackland Prairie on either side of us, not for the Cross Timbers, and the Wildflower Center runs its native range to south-central Texas. We are at its north-western edge — a shelterbelt shrub here, not a claim of local nativity.

Propagation & Care

Seed collectionBerries ripen in fall. Seed is notoriously slow — often 1–3 years to germinate.

StratificationLong warm-then-cold stratification required for seed. Cuttings are far more practical.

PropagationPreferred: semi-hardwood cuttings in summer under mist; roots readily. Yaupon is dioecious — only female plants fruit, and they need a male nearby. Propagate from cuttings of known plants so the sex is certain, and keep a male in every thicket. Yaupon colonizes by root suckers — lift a rooted sucker in winter, an easy clone that keeps the parent’s sex.

Container progressionCutting → 5-inch pot → 1-gal fabric if held → Field planting singly or in cover clusters.

Nursery wateringModerate while rooting; tolerant once established. Fabric stage: if the plant moves up from the 5-inch pot, fabric dries much faster than plastic and needs a lot more watering outdoors in a Central Texas summer. We have not set the frequency yet.

LightSun to partial shade; densest in sun.

OutplantingBest age 8–14 months. Plant November–February. Stock held in a 1-gal fabric pot can go out later — air-pruned roots don’t circle, so the window extends. The first cohort will set the actual figure.

Establishment Watering

Year 1: 5 gallons every 2–3 weeks during drought.
Year 2: drought only.

Field notesPropagate from known female (berrying) plants by cutting — seed is too slow and unpredictable to rely on.