Another one of my birthday presents that is growing on my window ledge at the moment is this stevia plant. It is a natural sweetener that grows as a herb. According to the packet, you can add a couple of leaves to your tea instead of using sugar.
According to the internet, it’s pretty rare to find seeds for stevia as they are difficult to propogate. I planted up the 12 peat pods that came in the growing kit with 2 seeds in each. I have just three thriving plants. Four other pods have seedlings in but they don’t seem to be growing much. Two more have the tiniest hints of green showing but they’re not quite getting to the seedling stage let alone growing into plants.