Cold Frame For Bonsai
When such shelter is not available you can place styrofoam covers around the pots to protect the roots or plant your bonsai including pot in your garden covered with soil until the first branching.
Cold frame for bonsai. This cold frame will be 6 wide and 3 deep. View inside one of my bonsai cold frames late winter the yellow blooming cascade style bonsai is winter jasmine. My first cold frame was 4 x 4 x 8 pink foam room in my garage similar to this which worked great and my trees made it through the winter. Cut the boards with a circular saw.
Gardman 7650 large wooden cold frame fsc certified timber frame 35 long x 31 wide x 35 high. Hammer in 12 inch rebar rods straight into the ground and bend the pvc over from one rebar to the next the pvc slides onto the rebar. If the bonsai is in a cold frame you can open the door to it on warm days but be sure to close it at night. Keeping your trees in a greenhouse or cold frame during the winter is recommended for those living in cold areas.
Measure one 2x12 lumber 72 long for the back one 2x8 lumber 72 long for the front and two 2x12 lumber 36 long for the sides. Use 2x12 lumber on the sides and back and 2x8 lumber on the front side where the access to the frame s interior will be. Figure out your length and width mine is 8 x 4. This resting period is called dormancy and refers to that time frame in which the tree s growth either slows down greatly or comes to a complete halt.
Get one inch pvc tubes that measure double the width of your plot. Cut the lumber for all sides. Like a bear hibernating for winter the bonsai s vascular and cellular activity is reduced as it begins to store up energy for the coming spring. Temperatures may still be fluctuating a good deal from night to day.
To use it as such place the cold frame in the garden seven to 10 days before you wish to plant letting the frame warm the soil. Portable frames are available from sev eral sources. Then with it in place plant your crop di rectly into the frame. As noted earlier remember to be patient.
After that first successful winter i acquired more trees that year lots of trees and i quickly realized that my cold frame was not going to cut it anymore. A simple hoop cold frame can be made with just pvc translucent plastic and rebar.