The Planted Tank Forum banner
1 - 1 of 1 Posts

·
Registered
Joined
·
2,328 Posts
If you are growing this plant to harvest it as an herb, your best bet is to grow it what we call "emersed", which means the plant is growing in only a few inches of water that covers the roots and base of the plant. It is a bog plant in Asia, like what we call 'marginal' pond plants.

You can have it planted in a pot or container with nutrient rich soil, and in shallow water you shouldn't have to worry much about algae. Above water it does not require as intensive light as it would under water, but the air will dry up the leaves quickly, so it would need to be inside a sealed container, or be covered in plastic to keep the air inside very humid. Moisture will build up inside the enclosure and fall back on the plant,same principal as a terrarium. If you do a google search for greenhouse supplies, you will find growing trays and plastic dome lids of different heights which would work just fine. You will still need to add water and mist the plants once a week, every two weeks, or whatever, but it would be much less often than if you were just growing them out in the open.

Growth is much faster above water that below water. The plants also flower above water. There are two growth forms of this plant. One has small roundish leaves, the other long narrow leaves. Both forms also have a different shape underwater than they do above water. My guess would be that what is used as an herb is the thicker more fleshy leaves that grow above water, so that would be another reason why emersed growing may be more to your liking.
 
1 - 1 of 1 Posts
Top