Re: [gardeners] Oregon Grape Propagation

Lon J. Rombough (
Tue, 24 Jul 2001 22:17:57 -0700

You have the standard tall Oregon Grape (Mahonia aquifolium).  The seed has
to be stratified - go through cold, moist conditions, before it will
germinate.  Put some in a plastic bag with a couple of tablespoons of moist
peat, put it in the refrigerator (do NOT freeze it) and leave it for three
months.  At the end of that time you should be able to plant it and have it
germinate (in a suitably warm place - the seedlings won't come up if it
isn't warm), of course).  
-Lon Rombough
>Subject: [gardeners] Oregon Grape Propagation
>Date: Tue, Jul 24, 2001, 5:38 PM

>About this time last year I moved my OG and killed it.  About a month ago,
>I pulled some dried berries off it and planted them.  They haven't
>sprouted, but I don't know if it's because they weren't mature when the
>plant died, or if I'm doing something wrong.  I have the opportunity to ...
>ummm ... appropriate more berries/seeds from a park here, and need to know
>if I should plop the whole berry into the dirt, or scarify the seed first,
>or ... ?  And how do I know if the seed is mature?  According to an unnamed
>source who often posts to this list, also lives in Boise, and writes a
>gardening column for the local paper, birds do a good job of "planting"
>them.  Unfortunately, I don't have any pet birds.  I do have cats, but
>don't know if they would process seeds in the same manner birds do.  Should
>I force feed some to the kitties then send them outside?  Maybe pre-dig
>holes where I want OG bushes?  I don't know what kind of OG they are, or if
>that even matters, but they have kind of bright, medium green, shiny,
>evergreen leaves and get about 6 or 7 feet tall.  TIA.
>Barb in Idaho
>Sunset 3/ USDA 6