Waterleaf Seeds

Waterleaf only blooms while it is raining, which makes it the most awkward herb to farm on purpose. You cannot force the weather, so the fix is to have the row planted and waiting. Keep a strip of sand or a line of planter boxes wherever you spend your time and cut the whole thing the moment a storm rolls in.

It sits on sand, and unlike most plants it does not object to being submerged in water or honey, so an underwater row works fine. Clay pots and planter boxes let you keep it at home instead of out in the desert. Location never blocks growth, only the bloom is conditional.