'Alfresco' has completely double frilly white petals with a chartreuse throat. Plant bulbs in well-drained soils in a container 2 inches wider than the bulb. Leave the neck of the bulb sticking up above the soil level. Once the leaves and flowering stalks start to emerge, move the amaryllis to a bright location, and rotate the pot to discourage the flowering stalk from falling towards the light.

Amaryllis (the old genus name that is now used as the common name for this group of plants) is native to tropical America whereas Hippeastrum come from South America. Once the blooms have faded, continue to water and fertilize the bulb (with diluted levels once a week) until after the last frost. Move the container outside in bright light and let it continue to grow throughout the summer. Once fall approaches, reduce water to encourage the plant to go dormant (the leaves will droop and turn yellow), and store in a frost free, dry location. Six weeks after entering dormancy, the plant can be brought back into a sunny location and watered. Once the bloom spikes start to emerge, gradually increase watering. Flowering typically begins about six weeks after it has been watered.