Hello, I would like to ask you knowledgeable MNers what is probably a monumentally stupid series of questions before I go and ask them in RL and have people point and laugh at me.
We have 2 box topiary plants in pots on either side of our front door, bought this summer. Cone shaped things. One of them must be slightly more sheltered than the other, because it doesn't get any rainwater - due to my having the aforesaid black thumbs, I wasn't watering either plant recently because of all the rain we've had - and all the leaves but a few have gone a crispy shade of brown. I did some remedial watering when I realised, but it didn't help.
These leaves are dead, aren't they? Inside the cone I can see green leaves and shoots and some are starting to poke through, so I'm hoping/assuming that if I keep on watering eventually it will re-green as the new leaves grow through the old crispy stuff?
However (and here's where the stupidity comes in) my original plan was to wind some fairy lights around them come Christmas and have them looking all festive. With one being a crispy brown thing of hideousness, this is not going to work. So....
If I spraypainted the leaves green again so it looked pretty for Christmas, would it kill the plant completely and ruin the potential new shoots and leaves coming through? Or should I just give up on it and buy a new one?
DH has suggested it would be easier to let the other plant die to match it, but I've disregarded this... 
I've googled but I can't find any mention of painting leaves green, so I'm assuming it's a fairly stupid thing to do or there'd be an Ehow page somewhere with instructions...
WWYD, MN?