Valeriana microphylla

The marsh valerian does best in locations that receive plenty of sunlight throughout the day. In its native marsh habitat, plentiful light stimulates vigorous growth. If light is insufficient, however, the plant may show stunted development or yellowing leaves.

Marsh valerian is native to temperate climates and prefers temperatures between 50 and 77°F (10 to 25°C). For optimal growth, keep these temperatures year-round. Consider using heating or cooling methods during harsh seasons.

The ideal time to fertilize a Marsh valerian is in early spring, as it is coming out of dormancy and beginning active growth. Fertilizing supplies essential nutrients for healthy development. Although Marsh valerian has relatively low fertilizer requirements, applying fertilizer once a year can improve its survival and encourage healthier, longer-lasting flowers.