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Re: Viburnum


Gene,
I can't vouch for the writer's knowledge, but much of what he wrote made
some sense.  So often i have heard people confused about Vibe's bloom times.
Kitty

----- Original Message ----- 
From: "Gene Bush" <genebush@otherside.com>
To: <gardenchat@hort.net>
Sent: Tuesday, January 25, 2005 6:49 AM
Subject: Re: [CHAT] Viburnum


> Veeerrry Interesting, Kitty.
>     I am going to print this one out and stick it in the Dirr book in the
> viburnum section. Certainly the most detailed explanation I have ever come
> across on pollination.
>     I purchased 3, 5 gallon size, late last summer and they are still in
> containers with leaves piled around them. Never got them into the ground
due
> to all the rain. Now to order a decent sized pollinator this spring.
>     Thank you,   Gene
> Gene E. Bush
> Munchkin Nursery & Gardens, llc
> www.munchkinnursery.com
> genebush@munchkinnursery.com
> Zone 6/5  Southern Indiana
>
> ----- Original Message ----- 
> From: <kmrsy@comcast.net>
>
> > Gene, I was writing from a 3 or 4 year old memory. In searching for the
> > correct mate, I came across a very long discussion of it with one
> > posting of particular value. The postings suggested Viburnum nudum, the
> > species, Viburnum nudum Earthshades, V. nudum 'Count Pulaski', V.
> > nudum Pollinator, V cassinoides. and others...but this particular post
> > (reminiscent of Marge's provenance article) was quite enlightening. Here
> > is most of what "ViburnumValley" wrote:
> >
> >
> > Viburnums, as a genus, fruit more prolifically when genetically
> > dissimilar individuals of the same species are growing close together.
> > ...ones (genetically identical, like 2 Viburnum nudum Winterthur)
> > planted together do not lend to more prolific fruiting.
> >
> > With viburnums, fruiting comes from cross-pollination of
> > self-incompatible plants, which is NOT the same as the reference above
> > to winterberries (Ilex verticillata). The genus Ilex, holly, typically
> > has plants that are dioecious (male flowers on one plant, female flowers
> > on a different plant from whence form fruit). These male and female
> > plants must still have overlapping bloom times, in order to have fruit
> > set. Viburnums are monoecious, capable of producing fruit from perfect
> > flowers on every non-sterile plant (yes, there are some like that, too,
> > to add to the confusion) as long as a cross-pollinator BLOOMING AT THE
> > SAME TIME is within insect distance.
> >
> > The solution has several parts. First, if one procures only seedling
> > grown plants, one is guaranteed genetic diversity and pollination.
> > Unfortunately, this is a genus that is primarily produced through
> > cuttings (vegetative propagation) and these offspring are genetically
> > identical to the parent plant. These might be named clones like
> > Winterthur, or they could be identical cuttings from a plant found in
> > the wild. What to do?
> >
> > The second route to follow is to plant more than one named clone of
> > whatever your chosen species happens to be. For the case discussed here,
> > Viburnum nudum, the general choices are Winterthur; Count Pulaski; Earth
> > Shade; var. angustifolium; Calloway Large Leaf; Calloway Small leaf; and
> > any seedling grown from the species. But here comes the kicker.....V.
> > nudum is native from Connecticut, Long Island to Florida and west
> > through Kentucky and to Louisiana, all this covering zones 5-9.
> > Hmmm...guess what happens when you have clones from different ends of
> > this spectrum? If bloom times don't overlap -- no fruit. Count Pulaski
> > was selected in Arkansas; Winterthur was selected in Delaware; the
> > Calloway types are from southern Georgia. As for V. cassinoides as a
> > cross-pollinator, it is the most closely related species. Some authors
> > lump Vcass and Vnud together. Vcass is native from Newfoundland to
> > Manitoba, and Minnesota south to Georgia. I suspect most plants in the
> > trade hail from the north, so you could expect them to bloom at a much
> > different time than zone 7 sourced Vnuds.
> >
> > Mail ordering plants adds to the confusion, since where you bought it
> > from means nothing to the provenance (where the plant originated). You
> > could easily buy all the above Vnuds from one grower, and that might be
> > in Canada, Mexico, Europe, or anywhere in the US. The provenance of the
> > clones will all still be different.
> >
> > Kitty
>
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