PL. —Viburnum cassinoidesBotanical illustration — drop image
Viburnum cassinoides

Wild Raisin

SpringSummerFall
3a8aHardiness zone
Peak bloom windowZone 6b · frost-offset weeks
Winter
Not in bloom
Spring
Peak bloom
Summer
Not in bloom
Fall
Not in bloom
Peak bloom
In bloom
Background

Viburnum cassinoides is a native deciduous shrub distributed across eastern North America, from Newfoundland south along the Appalachians and west to the upper Midwest. It delivers three seasons of garden interest: creamy white flat-topped clusters in late spring, fruit that shifts through green, pink, red, and finally blue-black from midsummer into fall, and red to burgundy foliage in autumn. It suits naturalistic plantings, rain gardens, and shrub borders where soil stays consistently moist.

Naturally found along stream banks, pond margins, and bog edges, it tolerates seasonal flooding better than most ornamental viburnums. In gardens it adapts well provided soil moisture is maintained; a 3-inch mulch layer helps retain moisture and buffer pH toward the slightly acidic range of 5.5–6.5 that this shrub prefers. Root suckers are common and can be removed to keep a single-clump habit or left to establish a loose colony. Cold-hardiness to zone 3a makes it one of the toughest native viburnums available.

The fully ripe, darkened fruit is edible and sweet, developing a raisin-like flavor when shriveled—the origin of the common name. Indigenous peoples of eastern North America consumed the berries fresh and dried them for later use. The fruiting stems are a reliable food source for migratory thrushes, waxwings, and other fruit-eating birds in fall.

Care guide
SunSun to part shade
WaterMoist to wet
SoilMoist, acidic
Spacing5–8 ft
Height5–8 ft
Zone3a – 8a
Native RegionAL, CT, DE, GA, IN, KY, ME, MD, MA, MI, MN, NH, NJ, NY, NC, OH, PA, RI, SC, TN, VT, VA, WV, WI
Frost hardy
Seasonal tasks
spring
cutRemove dead wood and any crossing stems in late winter before bud break. Cut root suckers at ground level if a single-clump form is preferred.
sowPlant container-grown or balled-and-burlapped stock in spring after the last frost date. Water in thoroughly and apply a 3-inch mulch layer over the root zone.
summer
sowContainer-grown plants can also be set out in early fall while soil remains warm. Water thoroughly before the ground freezes.
watchCheck young foliage for powdery mildew during periods of high humidity and low air movement. Thin overcrowded stems to improve airflow.
cutPrune immediately after the spring flower period ends, removing dead, crossing, or crowded stems to maintain an open, multi-stemmed habit.
watchInspect leaves in midsummer for circular brown spots with yellow margins indicating viburnum leaf spot. Remove and dispose of affected foliage and improve air circulation around densely planted shrubs.
fall
watchTrack fruit color progression from green through pink and red to blue-black. Harvest fully darkened, slightly shriveled berries for fresh eating or preserves, or leave them for migratory birds.
Common problems

Fungal leaf spot

Symptoms

Brown or purplish spots on the leaves, often ringed with a yellow halo, that spread and merge in warm, humid, or wet weather; heavily spotted leaves yellow and drop early.

Treatment

Pick off spotted leaves and clear fallen debris to remove overwintering spores. Improve air circulation by thinning, and water at the base so foliage dries quickly. If it persists, apply a copper- or sulfur-based fungicide at the first sign.

Powdery mildew

Symptoms

White or grey powdery coating on leaves — usually starting on older growth in humid conditions or when nights cool.

Treatment

Improve air circulation by thinning plants. Apply neem oil or potassium bicarbonate spray at first sign. Avoid overhead watering.

Phytophthora Root Rot

Symptoms

Wilting despite moist soil, yellowing leaves, stunted growth, and dark, decayed roots and crown tissue. Vines may collapse during hot weather.

Treatment

Plant in well-draining soil and avoid waterlogging. Remove and destroy affected vines. Improve drainage with raised beds or amended soil and avoid overwatering.