Agriculture Reference
In-Depth Information
the winter, twice a day in the summer. Empty yesterday's water out of the dish and fill
it with fresh water run through the top of the pot.
To root watercress, cut stems, remove leaves below soil or water line, and place in a glass of water or poke
the pieces into soil, so the joints are covered.
Wider containers gives you a larger crop, since watercress spreads out into whatever
space you give it. Put a layer of gravel or moss in the bottom of the pot to keep the soil
from washing out through the drainage holes.
Occasional feeding and liming are necessary, because changing the water gradually
leaches out the nutrients. Fertilize with quarter-strength liquid fertilizer every couple of
weeks. I add a little limestone about once a month.
How to Harvest
Harvest watercress whenever you please. Don't let it flower, though. If it blooms, and
especially if it goes to seed, it will be too bitter to be good eating. It matures in about
60 days from seeds. I never plant seeds, only stems, so mine can be picked in about 10
days.
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