How cold hardy is the windmill palm? Hello. I live in zone 7a and would approaching a windmill palm....

Hello. I live in zone 7a and would approaching a windmill palm. I have hear mixed opinions on its cold stoutness. I was thinking of putting chirtmas lights over it. Is this a pious idea?
thankfulness
Alternatives for weed/grass murderer?
Answers:    Windmill Palm
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Trachycarpus fortunei
Windmill Palm


Description

Height: 10-20 feet (3.0-6.0 meters)
Spread: 6-10 foot (1.8-3.0 meters)
Leaf: 18-36 inches (46-91 cm)
Range: Not native to North America. (USDA Hardiness Zones 8 through 11 - southern and western coastal US states.)

General Care Tips

Windmill Palms grow contained by full sun and partial shade conditions on well-drained, fertile
soils. Water regularly. Prune sparingly. Avoid detrimental lower trunk and roots.

Things to Watch For

Pests include palm aphids and scales. Disease vulnerabilities include root rot, lethal yellowing disease and palm leaf spots.
Organic Seeds?
The windmill palm is one of the most cold tolerant of the fan palms. It can survive 20 deg. F winter temperature. However, with your zone 7 average winter temps. of 0 - 10 deg. F, it would be too cold.