Frost/Freeze Warning & Clethra

Westborough, MA(Zone 5b)

My Clethra 'Ruby Spice' has begun to leaf out earlier than usual this year with the handful of warm spells. We're now due for a handful of days with a high likelihood of freezing/frost. The forecast is calling for lows anywhere between 29-34 over the weekend. The bush actually looks great this year after two disappointing seasons marked by winter die-off and severe insect damage.

Will covering it with a regular sheet do enough to protect it from the cold or should I try other interventions? Any advice is greatly welcome!

Scott County, KY(Zone 5b)

Using a sheet will help a lot.

Caldwell, NJ(Zone 6a)

The Deer are my worst enemy for that plant!

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