Lafitte LA-jso. of N.O. Any help is most appreciated!

Cypress Vine-thinking about growing it in some kind of free (if possible) container and training it up atrellis. Any idea how many seeds in what size container? Any idea how long it will take to be about 6" tall by mid-June?
I want to make a room screen with the vines.

Delphiniums-when is best time to plant seeds?

How fast will Carolina Jessanibe grow here? Just planted 6 from Lowes

When do I trim a Confederate Jamine? This one is about 3-5 years old and not big-i don;t know what is wrong with it? Never been trimmed.

Any suggestions on some type of home mixed flower potting soil that I can make? i need a lot-like 30 large bags of it.

I hate dollar weeds.

Thanks for any help!