the tree situation is a yes. Find varieties that grow well in your zone. I'm not sure Apple trees would grow good in the south, but peaches would. Newer varieties are developed for individual zones. Lilacs would not do well just like Tulips that need what is called "Vernalization".
Basically it is a cold period where specific plants not only go dormant(
theyhit the pause button until the weather warms) but must be exposed to a certain number of days with minimum temperatures or they will not flower. Scientists are not certain why some plants need longer periods of cold than others but they believe plants store this information and pass it on genetically.
Too some animals, including breeds of chickens do better in different climates. I've a friend in Israel who tried Brahmas only to find this did not survive in the heat. The Buckeye is another breed developed for the cold weather of Canada.
As for those girls who did all that work? Send them over here. You are certainly blessed.
In an episode of "Little House on the Prairie an angel ( I think ) says, sometimes folks will do for strangers what they won't do for their own.
Pro 27:10
Thine own friend, and thy father's friend, forsake not; neither go into thy
brother's house in the day of thy calamity:
for better
is a neighbour
that is near than
a brother far off.