The best way to store olive trees, especially during colder months, depends on whether they are planted in the ground or in pots. Here's a breakdown:
For Olive Trees Planted in the Ground:
Generally, established olive trees are relatively hardy and can withstand short periods of frost. However, young trees or those in colder climates may need some protection.
- Wrap the Trunk: Use burlap or tree wrap to insulate the trunk, protecting it from temperature fluctuations and potential frost damage.
- Cover the Branches: For young or more sensitive trees, consider covering the branches with horticultural fleece during periods of extreme cold. Make sure the fleece extends to the ground to trap warmth.
- Mulch Heavily: Apply a thick layer of mulch (such as straw or wood chips) around the base of the tree to insulate the roots and help retain moisture.
For Olive Trees in Pots:
Olive trees in pots are more vulnerable to cold weather because their roots are exposed.
- Move to a Frost-Free Location: The ideal solution is to bring your potted olive tree indoors to a frost-free location like a garage, greenhouse, or unheated porch. A temperature range of 40-50°F (4-10°C) is suitable. Reduce watering significantly during this period.
- Elevate the Pot: If you must leave the pot outdoors, raise it off the ground using pot feet or bricks. This improves drainage and prevents the roots from sitting in soggy soil, which can freeze.
- Insulate the Pot: Wrap the pot with bubble wrap, burlap, or an old blanket to provide insulation against the cold.
- Protect the Branches: Similar to in-ground trees, cover the branches with horticultural fleece if extremely cold temperatures are expected.
- Timing is Key: Don't move pot-grown olive trees outdoors for the summer until all danger of frost has passed in the spring.
General Tips for Olive Tree Storage:
- Watering: Reduce watering frequency significantly during the winter months. Overwatering can lead to root rot, especially when the tree is not actively growing. Allow the soil to dry out slightly between waterings.
- Sunlight: Even during dormancy, olive trees benefit from some sunlight. If stored indoors, place the tree near a window where it can receive indirect light.
- Ventilation: Ensure adequate ventilation to prevent fungal diseases.
By following these guidelines, you can successfully store your olive trees and ensure their health and survival throughout the winter months.
