Calibrachoa is hardy in zones 9 to 11. They can be left outdoors over the winter in these warm climates. In colder climates, dig up the plants and bring them indoors or take cuttings to create new plants inside your home. These sun-loving plants will need supplemental light when grown indoors.
Cutting Back Calibrachoa For Winter
In milder areas, cut calibrachoa back to be 3 or 4 inches tall. Add mulch, shredded leaves, or compost around them to protect them from drying winds. In colder climates, trim your calibrachoa back before the threat of frost and create new houseplants from the cuttings.
Calibrachoa Winter Care in Pots
Calibrachoa will not survive outdoors in zones colder than 9. Leave your calibrachoa outdoors in warmer climates. Calibrachoa can be brought indoors for use as a houseplant. Use supplemental light for this sun-loving plant to do well. Do not fertilize calibrachoa plants in the winter months. They need a rest period and will begin to regrow in the spring.
Watering Calibrachoa in Winter
Continue watering calibrachoa planted in containers during the winter. Allow the top few inches of soil to dry out between waterings. Water plants in the ground during extended dry periods.
Growing Calibrachoa Indoors
Calibrachoa grown indoors will need supplemental light. Grow lights work best because they give off a full light spectrum similar to that produced by the sun. There’s no need to fertilize during the winter months. The plant will go through a dormant period where it may not put out blossoms or new growth. Add fertilizer in the spring after new growth appears.
Steps To Care For Calibrachoa in Winter
Calibrachoa will only survive if the temperature does not fall below freezing. Calibrachoa is cold-sensitive.
Step 1 - Carefully dig up your calibrachoa to avoid damaging or breaking off roots.
Step 2 - Re-pot in a container of fresh potting soil.
Step 3 - Trim the plant back to 2 or 3 inches in height.
Step 4- Water the plant.
Step 5 - Use the trimmings to create new plants.
Step 6 - Place the plant in a sunny location. Supplemental light is beneficial but optional
Step 7 - Water when the top few inches of soil dries out. There is no need to fertilize during the winter months.