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Growing Guide
GROWING NOTES
Under natural conditions, Watercress is a semi-aquatic herb often enjoyed for the the peppery taste and dense nutritional qualities of the leaves. It can be difficult to germinate and is best started in a site that receives good amounts of sunlight and plenty of moisture. Although watercress typically grows along stream banks and near sources of running water, this is not necessary, and with some planning it can be cultivated in containers.
Watercress is perennial in zones 5 and higher, and can be cultivated as an annual elsewhere. It does not tolerate transplanting and should be started in the container or site where it can initiate and complete its entire growth cycle.
Sow seeds ¼" deep, with 3-4" between seeds. As noted, a steady supply of moisture is absolutely ideal for watercress. Growing containers allows you to ensure this with some ease. Select smaller containers that are well-drained and have holes in the bottom. These containers can be placed into a larger container that containers water and will a constant supply to the smaller containers containing your plants.
With some warmth, germination should take place within 8-12 days. Do not let plants dry out during germination or at any point during growth.
MAINTAINING
Once established, watercress is fairly easy to maintain. The primary requisite is water, and it is important to change your water frequently. Stagnant water is not healthy, and water should be cycled every few days.
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