Can I plant a Viburnum lentago (Nannyberry Viburnum) [or Amelanchier canadensis, for that matter] on a shallow-soil location that has only 9" soil above the bed rock? I live in zone 6b and I'm concerned that the roots will not be deep enough to escape the freezing temperatures that can temporarily dip down to around 5 bellow 0 F.
Would this be an acceptable situation for a viburnum?
(I'm actually going to plant two of these right next to eachother so that they insculate [bond], forming a mutually fertilizing pair).
Follow-Up Postings:
RE: Can I grow viburnum spp. on shallow soil above bedrock? freez
Are you really asking about the soil situation here in the Botany Forum, or is this just about using your new word for the day? I think the answer that was given in the shrub forum is probably a good one, but, depending on the specifics of the situation, you might have a little more of a chance of it working than Laceyvail described. BTW, I think the word is actually supposed to be "inosculate".
RE: Can I grow viburnum spp. on shallow soil above bedrock? freez
So, does anyone know if Viburnum spp. and Amelanchier spp. (shallow root trees) can be grown in only a few inches of soil above bed rock (9" soil)? My concern is that in winter, the roots will not be insulated from freezing and will be damaged or killed; zone 6b: down to around 5 bellow zero.
RE: Can I grow viburnum spp. on shallow soil above bedrock? freez
If you do try it, as Esh_ga said, start small. A seedling would probably have a better chance of become adjusted to the situation than a larger specimen.