When we first planted rhododendrons we were told to place a burlap protection...
When we first planted rhododendrons we were told to place a burlap protection shield around the plants in the winter. The plants are about six years old. Do we still need to do this? We have endless summer hydrangea that we have been covering with a styrofoam cover in the winter. The plant is about six years old also. Do we need to still cover this also? This plant gets beautiful green and the last two years we do not get any blossoms. What may be causing this?
Ramsey County Minnesota horticulture
Yes, continue to protect your plants. If the crown of hydrangeas are placed too low when planting, it can cause hydrangeas not to bloom and potentially rot.