Winter hardy to USDA Zone 10-12. As a houseplant, it is easily grown in sandy well-drained commercial potting loams. Best sited in full sun, but this plant seems to adapt to some part shade. Tolerant of drought and dry indoor air. Water very moderately in spring, summer and fall, but reduce watering to the minimum in winter. Tolerates 50F to 60F degree nights in summer with a minimum of 40F degrees in winter. Plants taken outside for summer should be protected from rain, and should be brought indoors in early fall before night temperatures begin to dip below 50F degrees.
- Prepare a mixture of half potting soil and half sand, perlite or vermiculite. Water the mixture so that it is moist but not wet.
- Put the seeds on the soil.
- Cover the seeds with a thin layer of soil.
- Water the seeds.
- Place the pots in an area with warm temperatures in full sun or part shade.
- When the seedlings are a few inches tall, they can be transplanted.