Angelonia, Gardenia, and Blue Plumbago - pruning
Hello, I have a bit of a black thumb but I keep trying so that our front yard is not an embarrassment to our neighbors :)
Anyway, I planted a ton of purple angelonia last summer and it did awesome. I think it is supposed to be an annual but we have had a pretty mild winter here in Houston. Do you think it could come back this spring? Should I prune it now or wait till spring? How low would I need to cut it? If it's not the sort of plant to come back, do I just rip it all out and plant something else? I guess this gardening thing can get expensive - I should try to find one that comes back every year instead of just picking the prettiest ones huh?
Oh and also we have a few gardenia bushes. They have only produced a few flowers each year but last summer I found some acidifying fertilizer which I used a few times so I am hoping they do better this year. Do I need to cut those back at all? When would be the best time to do that?
Lastly I have three blue plumbagos that haven't died but aren't growing (I guess cause it's too cold now). Do I need to prune those to encourage them to grow? Or wait till it's warmer?
Thanks for any help! :)