the latest disease resistant American Elm?

[theXman]

What variety is the latest disease resistant American Elm that has been developed?

anything better than the 'Valley Forge' and 'New Harmony'?

if not, which one of those is "better"?

 

[tomthetreeman]

Can you say 'Can of worms?'

There are dozens of different varieties, with limitless opinions on which are best. So few have really been observed and objectively reported on that it's still a veritable crapshoot IMO.

What I do know is that Valley Forge are very radical, and don't resemble the American Elm as much as some would like. They start to get a form at about 10 years of age, or 25-30 feet tall. Nice tree so far.

New Harmony is supposed to behave better in the nursery, but again, until we see a true adult, it's hard to tell you the difference.

Princeton look the most like an American when young, and have been around longer. I have never seen a mature one in person, but it is my opinion that this is as close as you can get to the American Elm specie.

'Jefferson' Elms are originally grown from cuttings of the Jefferson Elm, in Washington, and although they are said to be resistant, have received the least amount of testing/inoculation, as far as I know.

I think the jury is still out on 'Liberty' as of now...

There are more, but I can't remember them all.

-Tom

 

[willbranch]

Are they hybrids or U.americana selections ?

 

[tomthetreeman]

The ones I listed are all resistant varieties, and there are many more.

The hybrids are a whole OTHER can of worms! Lots of opinions there as well!

-Tom