viburnum plicatum tomentosum vs cornus kousa bloom
This topic contains 7 replies, has 7 voices, and was last updated by Anonymous 7 years, 4 months ago.
May 12, 2010 at 3:34 am #29033
Was wondering if you had to choose between these two which you would pick for your garden. Does the flower season last longer on the cornus kousa or does the viburnum’s multi season interest, i.e. berries, fall color make it the winner?May 12, 2010 at 10:52 pm #29440
Both to my mind are of multi-season interest. The kousa dogwoods have spring flowers, summer-fall fruit, fall foliage color, and nice bark (peeling camouflage pattern) once mature.
The doublefile viburnum has spring flowers, summer/fall fruit (birds take it fast!) and fall foliage color.
The scale is very different — usually, a kousa dogwood is MUCH bigger than a doublefile.
Some posts about them:May 13, 2010 at 12:48 pm #29441
Uncanny… I have been debating this very thing all spring. I have native viburnum but am trying to decide between kousa and a doublefile viburnum for a specific place. It sounds like size may be the deciding factor for that spot and knowing me, I’ll find a place for the other someplace else! Once again, this site really delivers. Thank you!May 14, 2010 at 2:16 am #29442
I’ve had both in my garden. The Kousa dogwood is a big showy tree, upright with a very rounded crown, gets very wide. Flowers reliably for a long time. Overused in southern New England, and just looks tree-like… you don’t notice it so much when it’s out of flower. My tree was 20 feet high and very wide.
It can’t hold a candle to the wedding cake drapey elegance of the doublefile viburnum. The viburnum is smaller (still a very large shrub, though, at 12 – 15 feet), with branches all the way down to the ground and much nicer interesting form. Flowers are also showy, fall color is deep mahogany. I like the viburnum so much better for its sweeping elegance, lacy flowers and seasons of interest.May 15, 2010 at 2:02 am #29443
I have used many doublefiles in garden designs for clients for years with much success. It is one of my favorite viburnums for all the reasons mentioned above. I’m fond of Kousas, but haven’t used them very much. ironically, this week a client, where I have planted a number doublefiles, just asked me for a Kousa. I want to use ‘Venus’ but can’t seem to find one from the nurseries where I usually shop. I’m in Zone 5, Columbia County, NY not too far from Margaret and close to Western, MA. She wants one with some size, in a tree form, so I can’t do mail order. I will go and pick it up. Any suggestions?May 15, 2010 at 11:59 am #29444
It sounds as if doublefile viburnum is what I need to search out. In your experience will one do as a featured specimen or in order to get good flower and fruit do you plant more than one?May 16, 2010 at 3:09 am #29445
For good fruit set (flowering is not affected by cross-pollination) you will want two different cultivars that have overlapping bloom times. In reading about a few available cultivars, it sounds like some are more likely to set fruit than others. I think this Viburnum fruit is a favorite of birds, so even if you do get good fruit set it may not last very long, (although if you are trying to attract birds, it is a good choice.) I don’t grow this myself, so maybe there are others who have two cultivars that do well together (or don’t.)
Incidently, my vote is also for the doublefile viburnum; I love how geometric the two rows of flowers look when in bloom-it creates a very striking pattern.September 2, 2010 at 1:38 am #29579
I have a pruning question regarding viburnum and hydrangea. The owner of a property that I am working for has requested that I trim ‘way back’ his viburnum in order to expose his hydrangea bushes. They are planted back to back along a cement walk around a built in pool. What I have read is that you shouldn’t trim viburnum until spring and then only last years wood. The bushes are rather large and unsightly. I am concerned on the ‘look’ it will produce next spring when I cut them way back in order to show off his hydrangeas. I did go in and in between the two bush rows, I cut out to the ground a 4-5″ swatch of the viburnum to give the hydrangea room between. I just don’t want to make it look hacked and botched. What are your suggestions? I am in zone 5
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