Australian Willow Tree

rose2u(z9sw)October 4, 2006

I just bought a Australian Willow tree (GEIJERA parviflora) to plant in the front yard. My Western Garden book says it will have deep, noninvasive roots. Can I safely assume it wouldn't be invasive to a septic tank? I'm also interested in hearing from anyone that maybe has this tree, and if they like it or not. Also, I would like to hear some pros and cons on the tree. Any comments is appreciated.

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jkochan(Z9b)

Tree roots go where the water and nutients are. I would be very suprised to learn that an Austrailian Willow who's roots activley search deep for water in the arid reaches of the outback turn down the easey pickins of your septic system. If planted downstream (hill) or around the leach field, it may not be as much of a problem. Just my opinion, so you may want to check with the ASU extension office, they may be able to guide you on this.

    Bookmark   October 4, 2006 at 1:45PM
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rose2u(z9sw)

jkochan, thanks for your opinion. I'm thinking it might not be safe to plant it. It sure would be expensive lesson if it invaded the septic tank. This leaves me confused as to what I can plant. How do I get in touch with ASU extension office?

    Bookmark   October 4, 2006 at 11:43PM
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jkochan(Z9b)

Just about any tree and a septic system is a problem waiting to happen. You might want to consider some raised beds for the area and some flowering shrubs? Heres a link to the ASU home page.

Here is a link that might be useful: ASU Extension Office Home Page

    Bookmark   October 5, 2006 at 9:46AM
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aztreelvr

Just a reminder that it's the U of A Extension Office. This is the outreach branch of the College of Agriculture and Life Sciences (CALS) which is based in Tuscon. There are Extension offices in every county in the state and they are charged with bringing the university to the people of Arizona.

If you call 602-470-8086 x 301 you'll reach the Master Gardener hotline where you can leave a message. A MG will call you back. OR, you can post your question to the arid_gardener list serve. This is hosted by the U of A and can be accessed from the "Ask a Question" link on the Maricopa County Extension office listed in jochan's message above.

    Bookmark   October 6, 2006 at 11:33AM
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agility_mom(z9 AZ)

I have this tree and one thing I have to say about it is that it seems to take more water than some of the other drought tolerant trees. It looks "wilted" and does not thrive with the same water as my Mesquites,Palo Brea and some various Acacia trees.

    Bookmark   October 17, 2006 at 12:04PM
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teriabrams_yahoo_com

Hi, our homeowners association is considering this tree for slopes, 1 mile from the ocean. If it gets taller than 20 feet it will block views. Should we be concerned? Is it considered drought tolerant as slopes get dry in summer. Also, is the Australian willow the same as Peppermint Willow, Agonis Flexuosa?

    Bookmark   December 20, 2010 at 6:00PM
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aztreelvr

Australian Willow is Acacia salicina which is not a true willow but does have graceful, drooping branches. This tree is a fast grower on drip irrigation and reaches heights of 30 feet witha 15 foot spread.

It is considered low water use but I'm not sure if it would survive on rainfall alone in your area.

Here is a link that might be useful: Australian Willow

    Bookmark   December 21, 2010 at 5:47PM
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aztreelvr

Forgot to mention that Australian Willow could also be Geijera parviflora. Common names can be pretty confusing.

    Bookmark   December 22, 2010 at 3:39PM
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