It is important to adjust the watering schedule to accommodate the time of year. Masdevallias like to be watered on an average two times per week during the summer months. They may require more watering in the drier winter months. If the humidity is low, you will need to water to keep the plant moist. Remember not to let the plants become too dry because they do not tolerate long periods without water.
Air movement is crucial to the plant's survival.
Good air movement helps to prevent any fungal or bacterial problems. Use an occasional fungicide to prevent fungal problems. Masdevallias are light feeders and require a much more dilute mixture of fertilizer compared to other orchids. Fertilize only once a month. They accumulate fertilizer salts easily so flush water through pots to prevent salt buildup and to keep the medium evenly moist.