Alstroemeria, also known as the Lily-of-the-Incas or Inca Lily, is a new garden plant that is being grown for its beautiful, large inflorescences of purple, lavender, red, pink, yellow, orange, white and bicolors. In recent years, the Inca Lily has gained distinction because of the breeding work of Dr. Mark Bridgen at the University of Connecticut. He began his work in 1987 with his first plant collection expedition to Brazil with the late Fred Meyer. In Brazil he was able to collect the only fragrant species of Alstroemeria plus others that supply certain valuable characteristics to the hybrids. In subsequent years, Dr. Bridgen made 8 trips to Chile to collect Alstroemeria species that add winter hardiness, stem strength, and a variety of colors to the hybrids. Recent popular cultivars include Patricia Lynn', Freedom', and Sweet Laura'. Historically, the Inca Lily has been best known for its ability to produce long-lasting cut flowers; their postharvest vase life is up to 2-3 weeks. However, their virtues as potted and garden plants have been unveiled through the Bridgen Hybrids. Most of the Inca Lily cultivars are hardy to zone 6B and warmer. In regions colder than zone 6B, plants are grown in containers for the deck and patio during the early part of the season ("pansy time") because of their tolerance to light frosts. Later in the season, the Inca Lilies are transplanted into the garden and treated as annuals or tender perennials. The plants have an everblooming habit in the garden and will flower continuously all summer and fall until frost. Currently, there is only one dependably hardy cultivar of Alstroemeria, named Sweet Laura '. It is hardy to USDA zone 5. In addition to its hardiness, this patented plant is also the only commercially available fragrant cultivar in the world. In the garden, Alstroemeria grow best in full sun, but can also grow when given partial shade. Heights of the plants will vary from 1-3 ft tall depending on the cultivar, the amount of light the plant receives, and plant culture. Flowering stems are shorter on plants that are grown in full sun. Plants will also remain shorter during the growing season if flowering stems are removed after they bloom. Alstroemeria plants that are grown in the garden respond positively to the application of mulch, watering procedures and fertilizer applications. They will flower more with high levels of fertilizer applied. The plants should be kept moist and cool, but should not be allowed to be in poorly drained soils. In cold regions, the rhizomes of Alstroemeria can be stored during the winter if they are kept cool (34-37 F; 1-3C) and not allowed to dry out. Storage in peat moss, thick grade vermiculite or some other light, well-drained compound is optimal. Rhizomes that are wrapped in plastic must be periodically checked to guarantee that they do not become too wet for long periods.