Yellow Lotus – All over the map; for mass farming, try Telith’s island – eastern highlands.
Golden Lotus – In the Volcano, usually near buildings/stairs.
Crimson Lotus – Around the mounds of the dead, SICKLE DOES NOT WORK WITH THIS ONE!
Frost Lotus – In the snowy north, I usually find the most around the black keep.
Grey Lotus – I’ve only seen this in the arena, in chests. Seeds in the chests also.
Purple Lotus – In the jungle, mostly in the northern part near the spiders.
Black Lotus – The black garden in the swamp – Bring a sandstorm mask. (just west of witch queen)