Primrose, Blue Zebra

Primroses may be grown indoors if you are able to provide them with cool night temperatures of 50-60°F, high humidity, filtered sun and moist soil. Daytime temperatures must remain below 80°F. These are thirsty plants and they like having cool roots. To prolong indoor blooming, primroses should be kept in a cool environment. Another way to prolong bloom is to give regular doses of half-strength fertilizer solution. When they have finished blooming in the house it is best to plant them directly into the garden, or summer them outdoors in their pots and move back to the house at the end of the summer.