Cilantro is my favorite herb, and it also happens to be very good for you. The only bad thing about cilantro is that it is a fragile plant and wilts rather quickly when you buy a bunch at the grocery store. I love to use cilantro for so many different recipes, but it is a very potent herb strong in flavor and you don’t need a lot of it to spice up a dish, so that is precisely why my store-bought cilantro always wilts. This very easy hydroponic method takes care of the wilting issue because you can harvest a small amount for each recipe and it continues to grow.
Materials:
A colander
Corriander (cilantro) seeds
A pot of water (the colander will sit in)
Directions:
First, you will soak your coriander (cilantro) seeds in water for several hours, then you will drain them and crack then slightly with a mortar and pestle. Once the seeds are slightly cracked, place them in the colander with a bowl of water underneath and cover with a wet paper towel for a couple of days. Then you will remove the paper towel and just let your cilantro grow, topping up your base water from time to time.
In about 22 days, your coriander (cilantro) will be lush and ready for harvest.
source: diyjoy.com