The fact that Lego fíli is good with plants and can dig up and grow anything has been living rent free in my mind and is suffocating me with wholesome headcanons I cannot bear to live with alone.
They were living a new culture unlike their father's and father's fathers ways. Fíli is a bridge between the new ways and the old. It would make sense he would pick up other hobbies and habits but in less showy ways than Kíli would.
Agriculture would be sensible. Dwarrow needed to learn how to grow basic food if they couldn't trade for it and if he didn't pick up plant rearing this way it could easily be just for the sheer challenge of something different.
Room full of plants? That'd be rad.
Asking Dís to watch over his plants while he's gone? Send help my heart aches.
Banning Kíli from touching his plants because Kíli killed one (1) plant and Fí never let him live it down in a loving brotherly way- kí isn't dumb he just doesn't know the complicated watering schedule! He was trying to help. Fí knows but he also knows he can use this as leverage against Kí and does so when needed.
Putting found gem stones and special carved rocks with runes in his potted plants for growth and protection
Growing Balin an orchid or special fern.
Whenever they travel with merchants he's buying seeds or a plant cutting to take home and add to his collection.
Where is Fíli? Oh there was a lady selling some plants back ther- say no more.
Hes an encyclopedia of plants.
Helps start seeds inside.
May or may not like flowering plants depends he may like the non flowering ones the best. Up to debate.
I could see him making a moon flowering garden for his mother.
I feel like some middle earth version of spider plants, snake plants, pothos, pilea etc but like make them middle earthy.
Moss probably has a moss garden. Ferns probably most likely. Sedum and small ground foliage like creeping thyme.
Has probably grown a whole tree in his life time.
Is notorious for being like ' I found this thing and I'm going to try and grow it' and annoyingly grows it. But then gives it away because the challenge is over.
Whispers all his problems to his plants. They are the only ones he can confide in.
Shares gardening and plant information with Bilbo during down time while he smokes his pipeweed. Delighting the hobbit with this private side of Mister. Knives The Knife Man of Many Knives.
For all the Fíli lovers: garden soil covered Fíli. Hands all dirty. Growing things for you? Your own garden? A plant? Love? Who is to say!!
gardener, seed merchant, or flower shop owner X Fíli fic? 😌