Witherod

Year-round

Withe-rod (Viburnum nudum var. cassinoides), also called wild raisin, is native to Pennsylvania's Northern Allegheny Plateau, including the Johnstown area. It grows wild in swamps and wet woods but adapts well to an average garden bed once it settles in. Give it part sun to full sun and steady moisture while it establishes, and it rewards you with white flower clusters in early summer and berries that shift through pink, red, and blue before turning black in fall.

• Plant in average to wet, well drained soil. It tolerates clay and drier spots once established, so a typical Johnstown yard works fine.
• Give it full sun to part shade. More sun generally means better flowering and richer fall color.
• Small white flower clusters open in June and July and feed bees and other pollinators.
• Birds and small mammals eat the color changing berries, which is why the fruit display rarely lasts long into winter.
• Watch for viburnum leaf beetle, a common regional pest. You can manage it without spraying by checking twigs each winter and pruning out any with egg pits.

Fall

Fall is when this shrub earns its keep. The berries move through pink, red, and blue before turning black, and the leaves turn shades of crimson, purple, or orange red at the same time. The average first frost in the Johnstown area lands in late September to early October.

• Skip shaping cuts now. Pruning in fall removes the wood that would have flowered next year.
• Starting in October, check bare twigs for viburnum leaf beetle egg sites, small rounded pits capped with dark excrement in a row along young twigs.
• Prune out and dispose of any twigs with egg pits before the eggs hatch in spring. This is the most effective non-spray control window.
• Rake and remove fallen leaves under the shrub to cut down on overwintering pests.
• Stop fertilizing by late summer so new growth has time to harden off before frost.

The berry color change and fall foliage are this shrub's showiest curb appeal moment, and a clean fall leaf rake-up underneath it keeps the bed looking HOA-friendly.

Winter

This shrub is well within its cold comfort zone in Johnstown's zone 6b winters. It goes fully dormant, drops its leaves, and needs no winter protection once established.

• No watering or fertilizing needed while the shrub is dormant.
• October through April is the best window to inspect twigs for viburnum leaf beetle egg pits and prune out any you find.
• Brush heavy, wet snow off branches after a storm to prevent splitting, especially on younger plants.
• Keep piled road salt or salted snow away from the root zone if the shrub sits near a driveway or sidewalk.

A tidy winter prune of any leaf beetle infested twigs keeps the bare shrub looking cared for, in line with an HOA-conscious front yard.

Spring

Spring starts slow in Johnstown. The average last frost lands around late May, so hold off on transplanting or heavy pruning until the cold snaps have passed. New leaves emerge in April, and flower buds that formed last year begin to swell toward the early summer bloom.

• Wait until after the last frost, usually late May in Johnstown, before you move or divide the shrub.
• Apply a balanced, slow release fertilizer in early spring to support new growth.
• Do not prune now. This shrub blooms on last year's wood, so spring pruning removes the flowers you are waiting for.
• Refresh mulch to two to three inches to hold moisture as the ground warms.
• Check the undersides of young leaves for hatching viburnum leaf beetle larvae. Hand pick a small number rather than spraying.

New leaves and swelling flower buds make this a good time to tidy the bed edges, which keeps the front yard HOA-friendly heading into bloom season.

Summer

Summer is bloom and early fruit season. The white flower clusters that opened in June carry into July, and by late summer the berries start their slow shift from green toward pink.

• Water during dry stretches, especially in the shrub's first two summers while roots are still establishing.
• Leave the spent flower clusters alone. They turn into the berries that give this shrub its fall show.
• Watch for viburnum leaf beetle larvae skeletonizing leaves. Hand pick them or prune out heavily infested twigs rather than spraying.
• Keep a two to three inch mulch ring in place to help the soil hold moisture through hot, dry weeks.