Little Grape Fern

Northwestern Moonwort should be watered deeply once per week in the summer season, and once or twice a month in the winter. When watering during the warm season, be sure to provide enough water to penetrate 3 to 5 inches into the soil. When watering during the cold season, be sure to give just enough water to prevent the soil from drying out. Too much water during this period can lead to root rot. It's best to water the soil in the morning to give the plant plenty of time to absorb the water before the sun goes down.

Northwestern Moonwort (Botrychium pinnatum) grows in shade, and does not need a lot of direct sunlight to survive. The species can tolerate low light environments such as those under shrubs, thickets and trees. To thrive, a minimum of 3 hours of indirect sunlight is recommended for Northwestern Moonwort. This level of light will allow it to grow and photosynthesize properly. Avoid direct sunlight and instead provide diffused sunlight for the species whenever possible.

Northwestern Moonwort (Botrychium pinnatum) should be pruned occasionally to help it stay healthy. Prune it in late summer to early autumn, after the foliage has died off for the season. Start by removing any dead, wilted, or yellowing leaves or stems. Make sure to leave a few leaves on the plant so it can still photosynthesise and store energy. Once the dead material has been removed, cut the stems back to 3 to 4 inches. This will encourage new growth. Alternatively, you may want to prune selectively, meaning only select certain stems and leaves to remove. Whichever method you choose, pay attention to the overall shape of the plant and maintain balance. Pruning Northwestern Moonwort is a helpful way to keep the plant healthy – just be careful not to over-prune it.