There are no bad colors, just bad color schemes. Green is a very broad description of a hue, but lilac is much more precise. It's hard to get a picture of these colors together from that. If it's a dark bottle-green, it could look quite awful, but a pastel green might be much more appropriate to go with lilac.
Yes green furniture can be nice depending on your color scheme, and with your green and lilac it sounds like it looks good. So yes, in your case green furniture is nice.
I have pine furniture in my bedroom with green at the front, do you think green is a good colour for furniture? The colour scheme in my bedroom is green and lilac
