Perhaps a little fertiliser!

Maybe that's what our tree needs too. Or it might be happier if we just clean the windows.

#2 Dont forget to mist your plant! 😜

Do I have to take it outside to do that or is it enough to spray just a little?

I just a little spray bottle and mist all my plants weekly . I don't move them to mist them unless they have a bug issue, then a give them a bath in the tub!

That particular plant needs to dry out between watering's. Are you allowing it to dry enough? Test it by sticking your finger in the soil up to the first knuckle crease in your finger. If it is dry then water it but if there is still some moisture then wait.

#1 #6 I do let it dry out between waterings, I'm wondering if maybe stiff soil may cause it?

Okay, I have given it a light summer rain now.

#7 Is it looking any better? You can break the soil down, remove some old, and mix new potting soil in with it.

#9 Yes! I took the plant outside in the 80 degree weather with a fresh watering and it perked right up by the next day. I think it just needed some heat, I do tend to keep my house on the chiller side.