two gallon? Well, maybe if you're bonsai'ing it. They get large.... so large....:o) I saw one in No. Hollywood that was the size of a small tree, in a very large pot. I dunno... too much water? I think that you need to upgrade the pot, maybe give it full sun in your neck of the woods, and then hope for some hot days. Remember, tropical environments are 90º in the WINTER. So, when it's below that, you need to cut back on the water... they might get root rot.

But it's like that here.

You're in 7b, right? It isn't tropical feeling all the time there hopefully.

I have a chalice vine that hasn't bloomed yet but it is also in a smaller pot and I need to repot it. Has grown like a weed since I got it about four months ago.

Ms. Minnamouse, what I am trying to say is, briefly you have a tropical WINTER environment. If you go down to Southern Mexico (or further) during the summer, you'll find 120º and 100% humidity. Course there are milder tropical environments, called Cool tropics or cloud forests.
I get the heat, but not the humidity... I have a lot of tropicals, but they aren't happy.... too much sun and low humidity. :o(

Oh. Yeah, I have a lot of problems with tropical lust and no enviroment for them.

It grows vigorously here in Sydney and flowers profusely too, though best in full sun. Even right on the coast our winter nights sometimes get down to 2 deg C (35 F) and winter days are seldom above 22 C (72 F). Likewise our summers are not all that hot -- 100 F is only reached a very few days each year. I've even seen it thriving in more inland suburbs that get a few degrees of frost in winter.

I suspect chalice vine is more of a Mexican highland plant, which is why it adapts well to warmer parts of the US.

Okay, if it does well there... then I will put mine in the ground. :o) That's about what MY winter is like. Course it would be, we are in the same zone. :o) I don't know anyone around here who has one, so I've been chicken to put it in the ground. That's nice to know, thanks!