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Vines in shady area

Posted by CherylR z9a CA (My Page) on
Mon, Sep 19, 05 at 17:39

Hi - I'm new to Gardenweb. I'm trying to turn 1 1/4 acres of dirt into an eden. My first thing to tackle is an area under 100+ oak and walnut trees. We have a fence on the west and southern sides of the lot. Because the tree canopies are so large, the areas get only lightly dappled sun through out the day. For about an hour a few areas will get direct sun in the late afternoon.

For vines on the fence I was told Blue Dawn Flower or Morning Glory (Ipomoea acuminata), Giant Granadilla (Passiflora quandrangularis), Mandevilla 'Alice du Pont', and Golden Trumpet (Allamanda cathartica) would do well.

Shrubs: Azaleas, Camellias, Rhodies

I also have sections along the wall along the western side that get up to three hours of direct sun from about 3pm to 6 pm.

Any suggestions? Would appreciate your help.

Cheryl


Follow-Up Postings:

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RE: Vines in shady area

I think you might have a problems to grow anything under the walnut due to juglone issue, but oaks are friendly and Cl. hydrangea (Hydrangea petiolaris or Schizophragma hydrangeoides) will feel very comfortable with your lighting conditions.

Here is a link that might be useful: Walnut and Juglone


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RE: Vines in shady area

  • Posted by Cady 6b/Sunset34 MA (My Page) on
    Tue, Sep 20, 05 at 12:47

Dutchman's pipe (Aristolochea sp.) might get by with dappled sun. It is said to be tolerant of part shade.


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RE: Vines in shady area

clytostoma callistegiodes (sp?) or Violet Trumpet vine is evergreen and shade tolerant. It's native to south America, so it should not become invasive in CA.


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RE: Vines in shady area

If you are going to plant azaleas, rhodies & camellias you may want to have your soil tested first...they need acidic soil. Though all of the oaks may very well make the soil under the trees acidic before investing in all of those shrubs I'd make sure.


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RE: Vines in shady area

  • Posted by jkom51 Z9 CA/Sunset 17 (My Page) on
    Fri, Apr 7, 06 at 18:25

You may need to be careful if they are CA oaks. Those will die from summer watering, and even drought-resistant plants must be watered in the first couple of summers.

Google for a list of plants that are considered 'oak friendly'. You really want to save them, they are fabulous trees.

I have not had any problems planting a variety of plants near walnut trees -- black walnut trees release more juglone than English walnut trees. My biggest problem planting near them is that they absolutely suck up all the water under the canopy, and plants and shrubs have a hard time competing with the tree roots. I have callas, erysimums, limonium, star jasmine, nasturtium, alyssum, cannas, phormiums, and agapanthus around our walnut tree.


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