plant hardiness zones

I live in zone 9 in southern California. Why does the hardiness map only cover cold temperatures and not hot? It gets up to 110 F here and a lot of plants designed for full sun just don’t survive the summer. Are there flowers other than cactus and succulents that would work?

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1 Comment To "plant hardiness zones"

#1 Comment By Downtoearthdigs On 03/04/2017 @ 7:59 am

Yes, there are many perennials, vines and shrubs for you to grow in your warm zone 9 climate!
I would also suggest you check with your County Extension Office for a list of plants specific to your region.
I have listed a link to help you locate your nearest office and a few other links to help you.
https://www.gardeningknowhow.com/extension-search/ ^[1]

https://www.gardeningknowhow.com/special/xeriscape/growing-drought-tolerant-vines.htm ^[2]
https://www.gardeningknowhow.com/ornamental/shrubs/plumbago/growing-plumbago-plants.htm ^[3]
https://www.gardeningknowhow.com/ornamental/shrubs/princess-flower-bush/growing-princess-flower.htm ^[4]
https://www.gardeningknowhow.com/ornamental/shrubs/ixora/growing-ixora-shrubs.htm ^[5]
https://www.gardeningknowhow.com/ornamental/flowers/gazania/gazania-treasure-flowers.htm ^[6]
https://www.gardeningknowhow.com/ornamental/flowers/angelonia/growing-angelonia-plants.htm ^[7]

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URL to article: https://questions.gardeningknowhow.com/plant-hardiness-zones/

URLs in this post:

[1] https://www.gardeningknowhow.com/extension-search/: https://www.gardeningknowhow.com/extension-search/

[2] https://www.gardeningknowhow.com/special/xeriscape/growing-drought-tolerant-vines.htm: https://www.gardeningknowhow.com/special/xeriscape/growing-drought-tolerant-vines.htm

[3] https://www.gardeningknowhow.com/ornamental/shrubs/plumbago/growing-plumbago-plants.htm: https://www.gardeningknowhow.com/ornamental/shrubs/plumbago/growing-plumbago-plants.htm

[4] https://www.gardeningknowhow.com/ornamental/shrubs/princess-flower-bush/growing-princess-flower.htm: https://www.gardeningknowhow.com/ornamental/shrubs/princess-flower-bush/growing-princess-flower.htm

[5] https://www.gardeningknowhow.com/ornamental/shrubs/ixora/growing-ixora-shrubs.htm: https://www.gardeningknowhow.com/ornamental/shrubs/ixora/growing-ixora-shrubs.htm

[6] https://www.gardeningknowhow.com/ornamental/flowers/gazania/gazania-treasure-flowers.htm: https://www.gardeningknowhow.com/ornamental/flowers/gazania/gazania-treasure-flowers.htm

[7] https://www.gardeningknowhow.com/ornamental/flowers/angelonia/growing-angelonia-plants.htm: https://www.gardeningknowhow.com/ornamental/flowers/angelonia/growing-angelonia-plants.htm

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