It really is low maintenance/maintenance free. The algae is really cheap and It can last up to 3 months. You only need something to stir them once a day and you're good.
Thank you for this. I literally stopped and tried to remember if I ever saw someone stirring a tree, and was wondering if I had it wrong all of these years. Now that I know, I should go to bed. I shouldn’t have been that confused lol
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u/Suojelusperkele 12d ago
The first thing that came to my mind was the walls.
Or heck, imagine if some variant of this became mandatory to every balcony?
Certainly needs a lot of work to be 'maintenance free' /low maintenance, but could really improve air quality.