They certainly can but due to the heat and humidity I would suggest growing type III clematis and providing some shade in the heat of the day to help them make it. Planting on the eastern side of a house is a good way to provide the afternoon sun. Make sure they get plenty of moisture supplied either by you or Mother Nature!

You may wish to purchase Edith Malek's book 'Simply Clematis'. Edith is the president of the American Clematis Society, lives in California, and helps dispel the myths that clematis can't be grown in the warmer zones.

Miguel is correct and Edith's book "Simply Clematis" is great!!..I have a friend in Phoenix Arizona growing only pruning group 3's in morning sun and afternoon shade,well mulched and stays ontop of his watering to make sure they stay moist...Jeanne

I have a friend who is growing clematis very successfully in Florida. Another friend in Alabama has a garden full of them and it is very hot and humid there in the summer. I agree that mulch and water are the key. Afternoon shade would be a bonus.

Carol