A future project. Item 7420. Hi. Choosing plants that grow and thrive in your particular climate is the very first step toward having a beautiful garden. Two big advantages… 1. At the end of last summer I noticed one of them was droopy, so I made sure it was watered and didn't pay much attention over the winter. OSU Extension Service Education Center, phone 503-821-1150, address: 1815 NW 169th Place, Suite 1000, Beaverton, OR 97006. There are very few rules in gardening, but perhaps the most important one is to work within your zone. 2. shrubs that flower in Summer (Caryopteris x clandonensis, Clethra alnifolia, Hydrangea species, Itea virginica, Phildelphus species, etc.) Hemiptelea davidii celtis c. c. c. c. c. Moraceae cordifolia* bungeana jessoensis koraiensis aurantiaca* edulis* Morus mongolica Juglandaceae Juglans mandshurica Mangnoliaceae Schizandra chinensis Magnolia parviflora Berberidaceae Berberis poireti B. amurensis Gramineae Sasa coreana* 8 I want to add a waterfall here with constant moving water. The viburnum beetle is a major pest of ornamental plants, but it's the larvae that cause the main problems Credit: Photo: Turnip Towers / Alamy Time was when viburnums were relatively pest-free. of an OSU Master Gardener The Desk: Homeowner Home and Garden advice MG program began as a way to meet demand for this information Restricted to calls from non-commercial sources Provide diagnosis and advice within the office or by phone A few weeks training… Then off to the front lines! The cultural controls are worth noting and following. Water flows from the roof to the little creekbed. If your Viburnum has angular shaped, water soaked, diseased areas on its leaves, the plant may have bacterial leaf spot, also known as bacterial blight. Here is the PNW Handbook page for Viburnum bacterial blight. The shrub at the back is Viburnum davidii which most of my plant friends disparage.This is probably because it is over-planted around the region. If infection occurs early in the season, leaves can become distorted. Asked April 20, 2018, 6:06 PM EDT. I have a group of 5 viburnum davidii that are about 10 years old. Viburnum Davidii problems. Zones. OSU Extension Marion and Polk Counties First, identify the plant ... Viburnum tinus-sunburn Symptoms appear later in the year Lilac (Syringa vulgaris): ... Viburnum davidii: leaf notching due to root weevils Colorado Blue Spruce (Picea pungens): White Pine weevil (Pissodes strobi) Viburnum davidii. viburnum. Learn more > USDA Zone: 7-9. Review this plant. or that flower all Summer-long (Buddleia davidii) vase-shaped shrubs (Hamamelis x intermedia, Viburnum plicatum tomentosum) Viburnum plicatum - Doublefile Viburnum Viburnum plicatum tomentosum - Doublefile Viburnum Viburnum plicatum tomentosum 'Mariesii' - Marie's Doublefile Viburnum Viburnum plicatum var. It’s free! This disease is caused by Pseudomonas syringae pv. A layer of exuded bacterial cells often found on the leaf surface can make the leaves shiny. Scholars Archive is a service of Oregon State University Libraries & Press 121 The Valley Library Corvallis, OR 97331-4501 Contact Us Services for Persons with Disabilities Viburnum is a diverse genus that includes many shrubs suitable for temperate gardens. tomentosum - Doublefile Viburnam Viburnum prunifolium - Blackhaw Viburnum Viburnum x burkwoodii - Burkwood Viburnum Viburnum x burkwoodii 'Mohawk' - Mohawk Viburnum Usda zone: 7-9. 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