In our region and growing zones of 4-5, Vallisneria is a warm season plant. It is normal for standard V. americana and many varieties of eelgrass especially those of more southern forms to go dormant in winter conditions. If plants have not died, regrowth will be noticable when water reaches 68-70F. Look for regrowth in our area in June, a similar growth pattern of the warm season grasses.
Last edited by Bill Cody; 03/05/12 04:28 PM.
