Answer: Pencil cactus won't survive outdoors in your climate so keep it inside during the fall and winter months. You can take it outdoors in mid-spring and leave it out all summer long. Pencil Cactus is quite easy to grow if placed in direct sunshine or very bright indirect light. Water sparingly maybe twice a month... allowing most of the soil mass to dry out. Feed bi-monthly but don't feed the plant if the soil is extremely dry... the soil needs to be a little moist before fertilizing. When your plant becomes too tall, cut it back to the desired height. Wear gloves and a long sleeve shirt when pruning Pencil Cactus. The sap may cause skin irritation. Be careful not to get the sap in your eyes.
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