Difference Between European and American Cranberrybush - Knowledgebase Question

Montreal, QC
Avatar for languedoc
Question by languedoc
November 3, 1999

I bought two "Viburnum Trilobum" a couple of years ago, at two different garden centers. They are about the same age (1,5 m tall). However, they differ greatly one from another. One is pestered with aphids, the other one hardly (in the same backyard!). One has 5 to 10 cm leaves, the other one's are often twice as large. Finally, one, however very healthy, has sporadic fruits, and the other one, nice big clusters instead. Is it possible that one of those would be the European Opulus instead of our native species?

Answer from NGA
November 3, 1999
How interesting that one of your cranberries has aphids and the other doesn't, because my reference says that "V. trilobum is less susceptible to aphid damage than V. opulus" (commonly called European cranberry). V. Opulus "needs careful spraying to control aphids." It says that their leaves, flowers and berries are similar. Opulus is described as "leaves 2-4 inches long and wider, turn red in fall. Blooms in May, white flower clusters 2-4 inches across, rimmed with 3/4 inch wide white sterile flowers in lace cap effect. Large showy red fruit." In addition, both species are available in several varieties, so that could also be a factor in the differences between your plants. Finally, it's a fact of nature that two "exactly the same plants in exactly the same conditions" can show quite different results. I guess that is one reason gardening is so interesting!

You must be signed in before you can post questions or answers. Click here to join!

« Return to the Garden Knowledgebase Homepage

Member Login:

( No account? Join now! )

Today's site banner is by Zoia and is called "Pansy Bucket"

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.