It’s looking good! I have a similar problem actually, and I’ve been noticing that my older leaves are also slowly deteriorating as well making the overall plant seem a bit less nice. I ended up chopping some of the vines back almost all the way to regrow some new branches near the bottom to replace the old leaves. You can probably do the same over time with all of them to keep them fresh.
Also navigating the UI with a controller is really rough (I tried playing this on my switch… did not go well). But the concept was cute so I hope they fix up some of the issues!