Viburnum rhytidophyllum, commonly called leatherleaf viburnum, is an evergreen shrub, which can ultimately reach a height of 6-10'. Produces flat cymes of creamy white flowers in the spring and berries in early fall which first appear red and then change to a glossy black. Berries will often persist to the end of December. Ovate-oblong to ovate-lanceolate leaves are dark green, somewhat shiny and with impressed venation. Easily grown in average, medium, well-drained soil in full sun to part shade. Native to China. Hardy in zones 5-8.
Growing Instructions for the Leatherleaf Viburnum
The seeds have a period of dormancy. They can be planted outdoors in the spring or summer and they will germinate the next spring or they can be cold stratified to simulate winter conditions and to break their dormancy at any time of the year. 1. Soak the seeds in water for 24 hours. 2. Warm stratify the seeds for 180 days. 3. Cold stratify the seeds. Put the seeds in a ziplock bag. 4. Put the bag in the refrigerator and leave it there for 90 days. 5. The seeds like moist, well-drained soil. Prepare a mixture of half potting soil and half sand, perlite or vermiculite. Put the soil in a pot. 6. Sow the seeds 3/8 of an inch deep. 7. Water the soil so that it is moist but not wet. 8. When the seedlings are a few inches tall, they can be transplanted.