Crassula cornuta pillansii, native to South Africa, forms chunky short stems of very farinose white pointed leaves. Crassulas require very porous soil with excellent drainage. In habitat, Crassulas usually grow in rocky quartz fields. Bright, filtered light and ample airflow. Water thoroughly when soil is dry to the touch. Water with caution in winter, as the plant can lose its roots if the soil stays cold and wet for extended periods. Summer dormant. Protect from frost to prevent scarring.
Delphinium. Needs sun or part sun. Apply a thin layer of compost each spring, followed by a 2-inch layer of mulch to retain moisture and control weeds. Water plants during the summer if rainfall is less than 1 inch per week. Soil should never dry out. Stake tall varieties to prevent hollow flower stalks from snapping in the wind, and deadhead after flowering to encourage rebloom. After the first killing frost, cut stems back to an inch or two above soil line.
FIVE TIPS FOR GROWING GARDENIAS 1) Keep the soil moist, making sure gardenias get at least an inch of water a week. 2) Deadhead (cut dead blooms) to encourage more flowering. 3) Use an insecticidal soap or horticultural oil to prevent pests, such as white flies and mealybugs. 4) Remember that high humidity is essential, but keep the shrubs partially shaded. 5) Apply 2 to 4 inches of organic mulch to keep the soil moist.