7 days ago, I snipped some watercress and put it in soil to see if I could grow new plants from cuttings. So far it looks like it’s working! The roots are definitely growing well.
I looked up watercress in my Encyclopedia of Gardening, and it had some interesting things to say.
It is a perennial plant, so you should be able to plant it once and have it come back every year thereafter. If it’s anything like mint, which so far seems to be the case in terms of rooting very easily, then it will be something you will hardly be able to get rid of within a few years.
Normally watercress is found by running streams, as I remember from my childhood, but the encyclopedia gives further detail about this: “Its natural habitat is fresh running streams, with slightly alkaline water at about 50 degrees F (10 C).” So a nice cool stream. Got it.
The next question is, how do I recreate that in my sandy backyard? Or will it grow fine in soil as long as I keep it watered? Well, they do answer that question too – “may be grown in moist garden soil”. Oh good.
But – keep reading – “it is easier to grow in 6-8 in pots”. The pot can recreate the stream, if you keep a saucer of water under it. You need to change the water daily, though, so it does require some daily thought to keep it going. Like any pot or planter on a summer patio or balcony.
Hmm. I think I want to create a stream in my yard. Do you think that would be less work?