The Chilling Aftermath: Protecting Tender Plants from Another Freeze in Clear LakeQuestion:

Question: With an impending freeze next week I’m now getting questions about how should I protect plants that I may have inadvertently pruned too early.
What is the potential impact of a freeze on these pruned plants?  
Short-term impacts:

• Increased susceptibility: Pruning stimulates new growth which is more tender and susceptible to cold damage.   
• Dieback: Exposed tissues and cuts from pruning are entry points for frost damage, potentially leading to dieback of branches or the entire plant.
• Reduced resilience: Plants weakened by the first freeze and pruning have less energy reserves to withstand another cold event.

Long-term impacts:

• Delayed recovery: Repeated freeze damage can hinder overall plant growth and delay recovery in the spring.
• Aesthetic damage: Plants may have an uneven shape or fewer blooms due to dieback.  
• Increased disease risk: Freeze damage can make plants more susceptible to diseases.   

What should I do to protect these plants from a second freeze?

• Cover up: Use blankets, sheets, or frost cloths to cover vulnerable plants before temperatures drop. Ensure the covering extends to the ground to trap heat.   
• Water deeply: Moist soil retains heat better than dry soil. Water plants thoroughly before a freeze, but avoid overwatering. Water only if the ground is not rain soaked.
• Mulch: Apply a thick layer of mulch around the base of plants to insulate the soil and protect roots.   
• Move indoors: If possible, move potted plants indoors or to a sheltered location like a garage or porch.
• Avoid pruning: Refrain from further pruning until after the threat of freezing has passed.
• Provide support: For tall or sprawling plants, use stakes or trellises to prevent branches from breaking under the weight of coverings or ice.

Additional considerations:

• Plant type: Different plants have varying levels of cold tolerance. Research the specific needs of your plants to provide appropriate protection.   
• Microclimates: Areas closer to structures or under tree canopies may offer slightly warmer conditions. Consider relocating sensitive plants to these microclimates.
• Monitor weather: Stay informed about weather forecasts to anticipate freeze events and take timely action.

By taking these precautions, Clear Lake gardeners can help their prematurely pruned tropical and tender plants survive another freeze and thrive in the coming spring.