Swiss stone pine

Swiss stone pine (Pinus cembra) prefers consistently moist soil, so it's important to provide regular irrigation during its first year in the ground. During this establishment period, water it deeply once a week, or every 5 days in hot weather, and let the soil dry out for a few days in between watering sessions. Once established, Swiss stone pine should only need watering during extended dry spells. In general, after the initial year, water this tree every 2 to 3 weeks during periods of dry weather.

Swiss stone pine (Pinus cembra) generally needs about 4 hours of direct sunlight per day in order to remain healthy. This should be in the form of direct sunlight - not partial shade, diffused light, or bright light. In the summer months, the tree should receive full sun from approximately 10am-4pm. In the winter, when the sun is lower in the sky, the tree should get the same amount of sunlight, but begin receiving it earlier, around 9am. This should be adjusted for your area’s climate, although Swiss stone pine is fairly versatile when it comes to light. As a general rule of thumb, just ensure your plant is receiving at least 4 hours of direct sunlight per day and you will be on the right track.

Swiss stone pine (Pinus cembra) should be pruned as needed to maintain shape and size, typically at the end of the dormant season. Common pruning techniques include crown thinning, which involves removing branches growing inward or crossing each other, and pruning away old or damaged branches. Pruning may also be used to reduce the height and spread of the tree, as well as to restore its shape or silhouette. For cosmetically appealing pruning results, pruning should only be done on healthy branches. Overall, Swiss stone pine should be pruned lightly, usually no more than 10-15%.