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Keyword Search Results for:
Oriental lilies

1 Found

Question: 322-5201
Are Oriental lilies and tuberose hardy in Philadelphia area? Where is zone 6? Loretta, Philadelphia, PA

Mort's Answer:
Polianthes tuberosa is a tender perennial that will not bloom the first year. It has to be brought up the first year to protect it from frost. It is advisable to do this every year in zone 6. Oriental lilies are much hardier and can be left with a mulch each year. Philadelphia is in zone 6. Central and western Pennsylvania are in zone 5. The line between 6 and 5 runs from southeastern New England through NJ, Delaware, Maryland, West Virginia, Kentucky, northern Arkansas, the middle of Oklahoma, north Texas, much of Colorado, north New Mexico, north Arizona on the border of California and Nevada and through central Oregon and Washington.

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