Re: Septic System Demo Garden


From what I've read, tree roots can extend more than 2 to 4  times the
diameter of their canopies and can extend down as much as 7 feet, although
2 to 3 feet is more usual - most feeder roots being in the top 18" of soil.
 I found some resources on roots on the web for my current series of
articles, but nothing that detailed the extent of systems by species.  This
one does, however, describe the types of root systems and list a couple of
species for each.  Might be of interest to you.  URL is: 
http://www.exnet.iastate.edu/pages/tree/roots.html

I thought you might be growing grasses :-)

Well, my head is not only heat befuddled right now, but exhausted from a
long business trip....but will try to collect my thoughts and see if I can
recall some of them another day :-)  The Eupatorium is one and it can get
pretty tall.  I've had wild ones top 12', tho' my named cultivar is more
like 5' or 6'....they do like moist soil and sun.

Marge Talt, zone 7 Maryland
mtalt@clark.net
Editor:  Gardening in Shade
current article:  Planting Under Trees - Part 7; Mostly Natives and Tough
Guys
http://www.suite101.com/frontpage/frontpage.cfm?topicID=222
Gardening Topic Index for Suite101:
http://www.suite101.com/userfiles/79/gardening.html



----------
> From: Diana L. Politika <diana@olympus.net>
> Date: Friday, August 14, 1998 1:31 AM
> 
> Has anybody heard of a publication detailing the extent of the root
> systems of various trees?  Geez, you'd think there is something out
> there, as we are always so concerned about overall height.  
> Understandably, Salix's (Willows) would be out.  But what about some of
> the drought tolerant trees? Gee whiz....I just have my heart set on that
> styrax japonica...sniff.
> 
> We grow about 20 kinds, and I'm fondly eyeballing the Eulalia grass and
> the Miscanthus 'Morning Light' with thoughts of 'background plants'.
> 
>   Please, please wrest it from your heat befuddled head.
> I'm growing a large batch of Eupatorium 'Atropurpureum' (Joe Pye Weed
> 'Atropurpureum') with the thought of putting in several groupings of it.
> I have Hydrangea aspera that I'd like to put in, but I have to have a
> tree to hide it under.....

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