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Annuals/Mandevilla Diplandenia

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Expert: - 9/14/2009


Question
Hi CL:  My friend in San Diego has a mandevilla dipladenia growning on a trellis - it's beautiful.  I live in Lake Havasu City, AZ and wonder if it would survive long triple digit summer temps along a chain link fence.  If not, any other suggestions EXCEPT bouganvilla?  

Thanks.

Answer
Linda,
Mandevilla vine is very heat tolerant but needs regular watering in hot temperatures - I'd water it DEEPLY every three or four days in the hottest of weather.  (By deeply, I mean NOT hand watering; either let a hose trickle on the plant for 45 minutes, or use a soaker hose or sprinkler for more than an hour.)  

Here are some other vines for you to check out - these are all known to be very heat tolerant. Hardenbergia violacea,  Queen's Wreath or Coral Vine (Antigonon leptopus),  Yellow Orchid Vine (Calleum macroptera or Mascagnia macroptera)/

I hope this helps,
C.L.

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C.L. Fornari

Expertise

Annuals suggested for specific situations (sun, shade, windowboxes etc) New or unusual annuals are a particular interest of mine, and I grow many of these from seed. I am happy to help problem solve, answer questions about maintenance, and guide you to sources of unusual plants.

Experience

I am a garden writer/speaker/consultant and host of a weekly gardening radio program in the Northeast. I have been gardening all my life for my own pleasure, and started as a professional gardener and garden communicator 15 years ago. I work part-time at a garden center, selling and tending shrubs/trees/annuals/perennials...and doing some propagation and design work. I often think that all these professional activities serve to put a somewhat legitimate framework around a serious case of plant-lust.

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