Boston ferns are said to be either easy to grow or hard to grow. They do need high humidity to look their best. Misting them frequently helps considerably, since they otherwise have a tendency to drop the individual leaflets on a frond prematurely. The leaflets of aging fronds will drop eventually, even in humid environments. Removing dead and dying fronds is a part of the necessary culture in growing this plant.In addition to high humidity, these ferns grow best in light of medium intensity. Protect them from strong sunshine. Keep the soil evenly moist and use a weak liquid fertilizer every 2 weeks while plants are actively growing. Do not fertilize during the winter. Ideal temperatures range between 55 and 85 degrees F, but they will tolerate 50 - 95 F.