Hi,

A Meyer lemon will survive down to the low 20's for short (12-15
hours)periods. I have experimented quite a bit and found that protection
from frost is more important than just the temperature. I live in Zone 8
just North of Austin, Texas and I have successfully overwintered citrus
outdoors. Admittedly it gets colder in OK where you are than here in Texas
but with a little common sense you can protect a meyer lemon. All of my
citrus are in pots that I can move around. I have a large covered patio I
use to protect them from frost. For really cold weather I some times move
them into the garage or into a storage shed with a small heater.
I have left a meyer totally out this winter in a barrel. As most citrus will
do, It has lost all of its leaves but is not dead. It is already showing
signs of putting on new grow. I have found that when these trees lose their
leaves, I may take several months for them to releaf and then have the
energy to bloom for a new crop. I have also left a Satsuma orange out and it
has not even lost its leaves. The coldest temps in my backyard this winter
has been about 18 F for about 12 hours. I do not like to move the plants
into the house because of the leaf drop phenomenon. Just a few hours of sun
goes a long way to keeping the plants happy.
I have also found that limes are much more sensitive to cold than oranges or
lemons.

Hope this helps

Have Fun

Jim



wrote in message
oups.com...
Anybody know how well a meyer dwarf lemon tree will do in oklahoma if
left outside all year round? The winters have been so mild the last
few years I'm wondering if one of these trees would live through them.