Common Name Biological Name Type Family Zone Height Spread Bloom Time Bloom Description Sun Water Maintenance Flower |
crinum Crinum x powellii ‘Album’ Bulb Amaryllidaceae 6 to 11 3.00 to 4.00 feet 2.00 to 3.00 feet August to September white Full sun to part shade Medium Low Showy, Fragrant |
Winter hardy to USDA Zones 7-11 (possibly 6-11). Bulbs are easily grown in moist, organically rich, fertile soils in full sun to part shade. Large mature bulbs typically tolerate somewhat drier soil conditions than small bulbs. Best growth occurs in full sun, but this plant appreciates some light shade during the heat of the day in hot summer climates. Winter temperatures often determine the best planting strategy: (A) Where winter hardy, plant bulbs in a moist soil in spring for year round outdoor growth. Plants will often spread over time to form large colonies. (B) Where marginally winter hardy, plant bulbs in a protected location (e.g., southern exposure) in moist soils in spring for year round outdoor growth and mulch with evergreen boughs, hay or dead leaves over winter. (C) Where not winter hardy, plants are usually grown in containers which are planted outdoors in spring after last spring frost date and then dug up and brought indoors prior to the first fall frost date for overwintering in a cool sun room. Plant bulbs in pots or containers that are at least two inches larger in diameter than the bulbs. Bulbs like to be pot-bound. Set bulb in the pot with the neck exposed. Keep soils moist to wet and fertilize regularly during the growing season. Bring containers inside in fall before first frost for overwintering in a frost-free location. Return containers to the garden after last spring frost date. Crinums do not is not like to be moved because crinum roots do not like to be disturbed and once disturbed plants may not bloom for another 2-3 years. It should be noted that some gardeners have been able to successfully grow this crinum hybrid year round in the ground as far north as Zone 6 with a good winter mulch and protected location, however the risk of loss is ever present. |
Information on this page is generally from Missouri Botanical Gardens, Dave’s Garden, All things Plants or Texas Superstar |
This page last updated or reviewed 210715