North American Fruit Explorers mailing list at ibiblio

["H.Dessureault" <inter.verbis@atreide.net>]

Beware moving this in your nursery, if you don't want to spend your time pulling roots.

Prunus virginiana has the unfortunate habit of spreading wildly from the root. It can send numerous underground shoots many feet. When you graft something on this type of prunus, it soon finds itself tighly surrounded by bushes of choke cherries.

 

Prunus pennsylvanica is even worse. The later is good for prunus rootstock but it's life is short and it is easily broken so it is usually recommended that you bury the graft union underground so your variety will make it's own root. Meanwhile, it will send roots many tens of feet in all directions. The roots are bigger than prunus virginiana and far more difficult to pull. You need picks and axes.

Both plants seems to prefer sandy soils.

On the other hand, prunus nigra, the wild plum that you find on roadsides, likes clay and has more contained growth habits.

Hélène, zone 3

----- Original Message -----

From: del stubbs

To: nafex@yahoogroups.com

Sent: Tuesday, May 15, 2001 8:21 AM

Subject: Re: [nafex] topgrafting americana,prunus rootstocks

Kevin, just found the website.....
<http://www.agt.net/public/pchenier/thesis/fruit.html>
It mentions using  prunus nigra "Canada plum".  I haven't encountered it,
have you?
It recommends prunus virginiana for super hardy rootstock....anyone out
there use it? I've got a forest floor covered with seeedlings and think to
move a bunch into nursery bed area for future grafting of plum and or evans
cherry. I would guess it has dwarfing characteristics. Anyone experimented
with it?

Heres another good site for folks like me seeing photos of just what "green
tip" or "popcorn" or "silver tip" mean, from Mich. State U.

http://www.msue.msu.edu/fruit/indexbud.htm



>From: edforest55@hotmail.com

>Del,
>Thanks for your rundown on the first and last plants to begin growth
>this year. I always like to compare notes.
>As for Jap/Am plums grafted on P. americana, I have some 4 year old
>grafts at about 3 feet that haven't shown any problems yet. Probably
>too early to tell. It might depend on the what varieties, what
>variety was your source referring to?
>Kevin B.
>
>
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