Watering Guidelines Before Frost
Before the first frost hits, it's essential to give your Southern magnolia a good, deep watering. The goal is to ensure the tree is well-hydrated going into winter, as hydrated soil will hold heat better than dry soil. Water the tree thoroughly, providing enough water to soak down to about 30 centimeters (12 inches), or about 37 liters (10 gallons) per tree, making sure the soil around the root zone is moist.
Mulching Techniques for Insulation
Applying a thick layer of mulch around the base of the tree can help retain moisture and provide insulation for roots. Use organic mulch like wood chips, straw, or shredded bark, laying it down to a depth of about 8-10 centimeters (3-4 inches) but keep it about 5-7 centimeters (2-3 inches) away from the trunk to avoid rot.
Pruning Tips for Winter Readiness
Early fall is an ideal time for pruning Southern magnolia. Remove any dead or damaged branches, as well as any crossing or rubbing branches. Pruning helps improve air circulation and reduces the risk of disease. Use clean, sharp pruning tools to make clean cuts, which will heal over the winter.