Jay, am I understanding correctly that the trees will move with you back and forth each year?  What part of the adirondaks.  If the trees move with you in mid to late may, I imagine the temp difference between Texas and Northern NY would be quite extreme.  I know the larch can't go south with you, as they require the colder temps.  I can't comment on the others, but imagine the spruce and EWC enjoy the cooler weather also. I know they are plenty of people growing bonsai in texas. Also at least one or two on this forum have made a north/south (vise versa) relocation.  Perhaps they can share their experiences with us. 

For anyone who grows bonsai, moving can present a great challenge.  From speaking with others, my advice would be don't take trees with you and hope they will survive.  Take the ones that you KNOW will survive. 

Dave

I think they would all do fine. The three I don't know about would be the spruce, larch, and white cedar. All the other trees are grown successfully here in the south.

Thank you both. I agree the Larch, cedar and Spruce are probably not going to make it to Texas. I 'think' the area we are thinking of moving to is less hot than others. Also with moving the trees up north in May I'm hoping to avoid a good deal of the burning.

Are there any species that you feel would be better matches for me and my moves.

Jay

Two words for you:

"Cedar Elm"

...Get a large collected trunk, which are easily available in Texas from many bonsai sources--and go from there. Or dig your own while you're down there--they're easy to dig (I've dug several over the years).

I have had my largest cedar elm bonsai for going on 13 years now. I overwinter it here in Va. only under mulch. It has had no dieback or winter kill with that treatment in that time. It is extremely summer hardy also--it handles higher temps with not much fuss, not so with other elms, like Chinese elm, which are prone to black spot in summer.

CE is easily the most responsive and satisfying bonsai material I've worked with. It easily handles mispruning, harsh treatment, etc. yet is also capable of very subtle development in expert hands.

I'd urge you to look into one while you're down there. They are extremely common in East and Southeast Texas.

I guarantee once you begin working with this species, you will be spoiled.

Ah yes... the humidity. As far as the temps, we are more than likely going to be in the hills in the Georgetown area. I talk like I know what I am talking about.... I don't. If the move comes off it will be to follow the family.

Also remember, we will not be in Texas from mid May till October, thus missing those super hot days of summer. Of what I can find on the net, Georgetown isn't all that hot October through May.

At this point I'm almost hoping this fall through.

Jay

Dave, You are correct. I do enjoy winter sports and no Georgetown Texas will not have any. What it will have is my grand kids who may be moving with their parents. If they do, my wife and I will probably follow. We can (and will) take a few ski trips during the season.

My love of my family trumps my love of my trees.

Jay

Hi Jay,
Welcome to the wild world of Texas Bonsai!  Seriously though if you don't plan on staying through the heat of summer, you shouldn't find too many problems.  Oct - May is our wet and cool season (we have two, the other being hot and dry).  

Looking over your list I'd say these will do just fine:
Maples….. Trident, Japanese, and Amur
Hornbeam…. Korean
Apple…. Crab and Malus Indian Magic
Boxwood… Buxus Microphylla Koreana Nana
Blueberry….. Vaccinium Tophat (Blue Betty)

These you may have problems with:
White Cedar…. Thuja Occidentalis
Larch
Birch…. White
Spruce

The issue isn't going to be heat, humidity, or any other problem but rather your trees won't get a long enough cold dormancy period.   Contrary to popular belief, it does freeze down here (tonight in fact) and we have about a 2-3 month dormancy in Central Texas.  However, we'll get many many warm days inbetween, and northern trees need more cold time to keep them happy.  If the travel is safe for them, most of your trees will experience the "soft seasons" of both climates and maybe they'll love it.  It's interesting to think about!

I'd say another resource besides Jade Gardens located nearby in Wimberley (a great nursery!), is MBP Bonsai located in Pflugerville, only minutes away from Georgetown.  Both have local experts and can help with any problems.  I live in N. Austin, very near Georgetown, and I'm the president of the Austin Bonsai Society.  We have a very active club and lots of members to give assistance too if needed!  In addition, the Shohin Society of Texas meets in Austin and the Texas State Bonsai Exhibit is being built just outside of Austin as well.
Joey McCoy