Bittercap mushroom spores can be grown into bittercap mushrooms in the Canifis and Isafdarmushroom patches. This requires level 53 Farming, giving 67 experience for planting the seed and 57.7 experience per mushroom harvested. Harvesting from a mushroom patch with bittercap mushrooms grants 6 mushrooms. Bittercap mushrooms take 4 hours to grow, and cannot be watered. These mushrooms have various uses, some of which are involved with the Cooking skill, or as part of the fairy ring network.