|
|
| COLD HARDY
PLANTS Growers and Breeders of Unusual Cold Hardy Plants |
|
|
Washingtonia filifera |
|
| Quantity
of plants tested: 1 palm Size of plant tested: palm was about 2ft to 2.5ft tall (ground to top of leaves) Soil texture: loamy sand and covered with 1"-2" pine bark mulch. When planted: the plant was planted in the ground in July 2002. Winter protection: None. Microclimate: cold microclimate. Temperature: refer to 2002-2003 winters on this chart Findings: the plant's leaves were bronzed (partially burnt) after a 17.3F night. A 19.1F night several days prior did not harm the leaves. The temperature probe was right on the leaf. |
|
 |
November 9, 2002 - This photo shows the plant in early November after the 17.3F night. You need to look close to see any damage. Bottom most leaves are already highly burnt. |
 |
November 16, 2002 - This photo shows the same palm a few days later, more browning has occurred. It's about 50% burnt. The lower leaves are 100% toasted. Once again, we did not observe any damage after a 19.1F, but the 17.3F did cause damage. |
