The windmill ribbon , a general name for all members of the botanical group Trachycarpus , is regarded as the most winter - intrepid laurel wreath that grows a luggage compartment . Four metal money of windmill thenar can survive temperatures as dispirited as 5 degree F without any shelter . place a windmill thenar on the warm side of a building , or wrap up the frond or trunk with cloth , can protect the plant life to infrequent bouts with -5 to zero degree F.
Step 1
Plant your windmill palm in a protected microclimate that is shelter from inhuman winter wind instrument and encounter some supplemental warmheartedness from a building facade . gardener are conversant with their cubic yard , knowing which locations are warmer in winter , as meet with lack of snowcover , remnant green turf pasture , or the earliest emergence of bulb or bush leaves in early fountain . These microclimates are a good choice for the windmill thenar .
Step 2
H2O and fertilize your windmill palm during the grow season so that the plant is healthy and vigorous . Healthy plants are easily adapted and more bouncy to adverse weather or pest weather condition .
Step 3
splosh a coarse-grained plant food that is high in potassium around the ribbon tree trunk base , and water it in other autumn . Potassium is known to better a plant ’s leeway of cold .
Step 4
scale down watering of the windmill palm once daytime temperature fail to get about 65 degrees F in autumn . Only appropriate natural rainfall to irrigate the palm . to a fault wet soils in winter low temperature can lead to increased palm injury .
Step 5
enclose the automobile trunk of the palm with a cloth blanket when temperature are expect to overleap below 5 degrees F. If the palm is in a placement that is exposed to wintertime winds , the wrapping should be done when temperatures dip below 20 degrees F. Wrap and gently tie rope around the textile over the trunk to secure it .
Step 6
pinch the fronds in the canopy of the medal so that they all are bundled and level vertically . Tie the fronds together in this organization . enwrap these fronds with a cloth blanket ( as in Step 5 ) to protect them from cold when temperature are have a bun in the oven to drop below -5 to -10 arcdegree F. The frond bundle should not be weighted down or bend over by the unreasonable weight of the cloth blanket .
Step 7
Allow snow book binding to mound up on the mantle - cover trunk , as it will help insulate the plant from cold air temperatures . Remove blow or ice from the wrap frond as needed so the parcel is not weight down down or deflect over . If snow or ice accumulates on unwrapped frond , sweep it off so frond are not angle down or strain so much as to break .
Tip
The four most insensate - hardy windmill laurel wreath specie are Trachycarpus fortunei , Trachycarpus nanus , Trachycarpus takil and Trachycarpus wagnerianus . These four coinage pull round zero degrees F with wrapping tribute or just siting in a microclimate . Some gardeners wrap their windmill palms with incandescent miniature Christmas brightness under a wrap of plastic , composition board or cloth in regions where temperatures in wintertime dip below zero degrees F.
Warning
Sub - freezing wintertime temperatures can also harm the decoration if rainfall , sleet or wet snow reaches the intimate core of the crownshaft , where the frond come forth , and then thawing and re - freezing . Keeping the crownshaft dry when it ’s moth-eaten prevents chances of any rot . Once the crownshaft is killed , no further leafage increment can go forth from the trunk tip . Take off any covering from the frond when temperature are again above 25 degrees F. Remember that this palm is alive and needs sunlight , even in winter . Do not keep charge card over the frond as it will inflame up rapidly in sunlight in wintertime .
