The miniature blue squill is relatively tolerant of drought. This is a deciduous bulb and since it naturally occurs in the summer rainfall region, it should be watered in spring and summer but watering must be reduced as soon as the leaves die back. It is best to keep them dry during winter. Merwilla dracomontana is regarded as frost hardy since it can survive the cold Drakensberg winter temperatures that sometimes drop as low as -7°C. When grown in containers, it is best to put them indoors or inside greenhouses during the cold winter months.

They can be grown from seeds or by division of offsets. Sow seeds in spring, in trays or pots that are not less than 10 cm deep, in a well-drained medium. Once germinated, the bulblets should be left undisturbed and will flower in the third or fourth season.

It creates bulblets at the base of mother bulb and they can be removed and replanted during winter, when they are dormant. When planting, the top of the bulb should be at or just below the ground level, in containers or on a sunny veranda. This genus is not susceptible to significant pest and diseases.