I have a level 40 Plant/Ice I play in the all dominator team.
Carrion Creepers is a very goods power. With this you can take the alpha for a team, it also does a bit of damage and control for you.
The Giant Venus fly trap looks freakish, tends to stand back waving its, um, tendrils around. It does fire off quite a few attacks and can do decent damage, it just never looks like its doing very much.
Greater Ice Sword and Bitter Ice Blast will round out you single target attacks, these will seriously up your damage.
It's just a shame you have to wait so long for them.
Chilling Embrace you probably wont find necessary, as all the tragets you approach in melee should already be controlled by Seeds of Confusion.
You will want to team, the bigger the team the better. Don't worry about what else is on the team, with Carrion Creepers, you can start a fight safely, with Seeds of confusion, you can control the fight and deal damage. Once most of the enemies are controlled just lay into them with your attacks until they stop twitching. 
This combo can be very effective, it is also one of the easiest dom builds to level. You control starts early, and the attacks are relatively high damage (for dominators).
Anymore questions, just ask.
Story Arcs:
The business of destruction ID: 80848
I got a lvl22 plant/ice dom who hasnt been played in 12 months. Has anyone got a high lvl 1 and if so are they a fun build to progress with.
Also any advice for future power picks.
Altitus doesnt have a cure just more alts