We'll be honest about this unusual senecio - we don't know if it's truly Senecio talinoides or if it's actually Senecio vitalis. Why do we care? Because the growth habits are somewhat different, and we don't want to steer you wrong. Several senecios are called 'Narrow-Leaf Chalk Stick' but some are taller with a distinct upright habit, while others, like the one we have here, seems to be more sprawling, which leads us to believe it's actually a Senecio vitalis. That said, this particular specimen can grow outdoors during the summer, but should be brought inside (or well sheltered under the eaves) in the fall when temps drop below 45 degrees. Growing anywhere from one to two feet tall, 'Narrow-Leaf Chalk Stick' could spread just as wide. Inside, this succulent needs lots of light and not too much water. This specimen would be great in a planter with low-growing succulents, or even other houseplants with similar needs. One caveat, 'Narrow-Leaf Chalk Stick' is NOT pet-friendly so please keep out of reach of dogs or cats that chew on plants.