Polar Joy Tree Rose Winter Care in Toronto

Polar Joy Tree Rose Winter Care in Toronto

Polar Joy (Zone 4 hardy) in Toronto (Zone 5) needs protection as a tree rose.

Best Option: Unheated Garage

• Wait for leaf drop (canes hardened).
• Place in garage; 1 cup water monthly.
• No light needed.
• Spring: day out/night in until frost-free.

Alternative: In-Ground Protection

• Sink pot in hole; mound 12 inches soil/mulch.
• Wrap in agricultural bubble wrap.

Why Tree Roses Are Vulnerable

Modern rose budded on tall Rugosa stem—top exposed to cold.