Your room sounds beautiful! My suggestion would be that you choose a beige/taupe with a hint of purple/lavender/violet. Pick a beige/taupe that goes well with your knotty pine. Try to match the warmth of the wood in the paint color.
Another option would be to go with a warm sage gray/green scheme if this is more of a an indoor/outdoor room. This color would really complement the plants.
I'm not sure what you mean by borders. If they are wallpaper borders, consider pulling a color from them to tie the room together.
Knotty and twisted.
The population of Knotty Ash is 13,200.
Knotty pebblesnail was created in 1904.
The girls hair was very knotty. Another great example sentence for this word is, somehow the girls belt became knotty.
On account it was knotty
Stop being knotty
For example: My hair is really knotty so I'll have to comb it out.
Knotty Ash railway station was created in 1879.
Knotty Ash railway station ended in 1960.
The girls hair was so knotty that it was hard to brush it out in time for school.
In some dialects, "knotty" is the homophone for naughty.
A Knotty Knot - 1913 was released on: USA: 31 March 1913