Lucy wrote:
I moved into a home with previously planted george tabor rhodendrons,
I have been here through last fall, winter, spring, and still no
blooms yet. They are planted underneath a stand of oak trees and get
afternoon sun. Any suggestions?


George Tabor is actually an azalea, a subgroup of the rhododendrons.
They fall into the southern indica section of azaleas.

While they are more tolerant of direct sun than many rhododendrons and
azaleas, they are less hardy. The plant might take winter temperatures
as low as 10°F, but it will show some damage below 20°F since it is
evergreen and not deciduous.

The plants require feeding in the early summer to produce flowers the
following spring. I use a commercial azalea, camellia, and rhododendron
food. Feed lightly. Azaleas do not need abundant nutrients.

If overgrown, they should be pruned in the spring, after flowering (in
May if they don't flower). Although evergreen, you can cut back to bare
wood, leaving the plant temporarily leafless. However, pruning is not
necessary every year; I do mine about once in three years. Pruning will
often reduce the next year's flowering, but it will increase the
flowering very much the year after that.

--
David E. Ross
Climate: California Mediterranean
Sunset Zone: 21 -- interior Santa Monica Mountains with some ocean
influence (USDA 10a, very close to Sunset Zone 19)
Gardening pages at http://www.rossde.com/garden/