Best Citrus for Texas

The Gulf Coast area is a great place to grow citrus.  We have the perfect climate of high humidity, sunlight, and heat.  Oh course we would love to have a little less of the heat and humidity but the citrus love it.  Most citrus grow into large bushes or small trees.  If you don't want a big citrus plant then it can be grown in a container.  This can be a bonus during an early freeze when you need to protect your citrus by bringing it into the garage when that cold snap comes.  You will want to bring the citrus to a warmer area when it gets 26 degrees or lower.  But some citrus have been know to survive a colder freeze than that.
Best varieties for South Texas:
(The * means that it is virus-free)

Oranges:
Tomango
Louisiana Sweet
Naval
Marrs
*Pineapple
*Hamlin
Republic of Texas

Grapefruit:
Bloom Sweet
Golden
*Rio Red
*Star Ruby
Marsh
Ruby Red
*Henderson

Kumquats:
Chang Chou
Nagami Kumquat
*Meiwa Kumquat (seedless)

Acid Citrus:
*Mexican Lime
Eustis Limequat
Sunquat
Yuzuquat
Calamondin
Meyer Lemon
*Ponderosa Lemon
Eureka Lemon
Thomasville Citrangequat

Mandarins/Tangelos:
Orlando Tangelo
Fairchild Tangerine
Clementine Tangerine (Monreal)
Changsha Tangerine
Satsuma

There are many more that can be added to this list.  Really it is a matter of taste.  Get the ones you like the best.  Try to wait until March to add your plants in the garden.  You will want to wait till all danger of frost has past.  Normal spacing between trees is 15 to 20 feet. 
Fertilize the trees with a complete fertilizer such as a 13-13-13 in late January or early February, at a rate of one-and-a-half pounds per year age of tree up to 12 years.  Water regularly and make sure that your water source is not high in sodium. Citrus love sunshine. Provide 5 to 6 hours of sunlight a day.

The next thing you do is sit back and wait for your delicious fruit to grow and flourish. Enjoy.