I know that there is Herbs and Tea Leaves collected through exploring. However, it would be cool if there was an Herb Garden. Seperate from the farming area.
We could buy seeds, plant, wait to grow and harvest. Similar to the farm. Levels and time. We could sell the herbs as is.
We could craft a drying rack(new item) and dry herbs/(flowers). And sell as dried herbs/flowers.
We could craft a Mortar and Pestle(new item) to grind into a Spice. To complete we could store in the new jar that you released. We could sell the spices, add to recipes.
Maybe even craft scented/dyed candles. Or even craft into teas or coffees. There's lots of options.
Here's a few herb names...Thyme, Oregano, Mint, Sage, Rosemary, Lavender, Dill, Lemon Balm, and Mustard Seed.
Happy Farming!