10 High Quality European olive tree seeds Olea europaea Olive trees are not fragile. In the ground they can withstand -10 degrees Celsius. Colder? Then you should (at least) wrap the bark. Most garden shops offer covers for small trees. In a pot, the root of the olive tree is more sensitive to frost. Insulate the outside of the pot with bubble wrap. The flowering period of the Olea europaea takes place in summer. At that time, the olive tree gets white flowers, which appear in bunches. Later, these become real olives. In the beginning the olives are green, but later they will be purple Cultivating Difficulty:Moderate - In Stock
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