Blue chalk stick is drought tolerant once it’s established, seldom needing water during the growing season. Soak your plant deeply every three or four weeks, but let the soil dry out completely between watering sessions. New plants need more frequent water – up to once a week during the first spring and summer. Water container and indoor plants about once a week or whenever the soil is dry throughout the container. Apply water until it drips from the bottom drainage holes and empty the drip tray after several minutes. During winter, water your blue chalk stick only enough to prevent wilting.
Your blue chalk stick will thrive and do its best in full, direct sunlight for 6 to 8 hours each day, but you can also grow it outdoors in partial shade. Indoors, place your plant in a south-facing window or the brightest window you have. If you can’t give the succulent enough direct sunlight, place it 6 to 12 inches under white fluorescent lights for up to 16 hours daily to supplement the natural light it receives.
Like all succulents and cacti (Cactaceae family), blue chalk stick doesn’t need much fertilizer. Give indoor or container plants a liquid fertilizer diluted to half-strength three or four times during the growing season. Plants grown in the ground don’t need any feeding.
Because they’re low-growing plants, blue chalk stick doesn’t generally require pruning. If they get too high, just pinch them back to encourage branching.