Winter Protection for Flower Bulbs: Storing and Overwintering

With the right treatment in winter, your flower bulbs are sure to bloom again next year. Good winter protection for flower bulbs is essential for this.

To overwinter flower bulbs, you need to prepare the plants, be careful when digging them up, and create good conditions for their winter dormancy. The effort is worthwhile because you'll benefit from stronger and larger plants in the coming year and won't constantly have to buy new flowers for your beds.

Classic spring bloomers like tulips and daffodils or special floral dreams like dahlias and crown imperials make the garden world colorful! To ensure they do so again next year, winter protection for the flower bulbs is necessary. This begins already in late summer, when you can reduce the amount of watering. This allows the bulb to store more water in reserve. After wilting, leave the foliage, but cut off flowers and seed heads. This way, the bulb can still gather strength before being dug up and won't release unnecessary energy. As soon as the first night frosts arrive, it's time to prune the plant and carefully dig up the flower bulbs. Remove the moist soil to prevent rot. You can separate daughter bulbs and overwinter them individually. Remember to sort out damaged, rotten, and diseased bulbs.

You should overwinter flower bulbs ideally in a simple wooden crate. Line the bottom with paper, such as newspapers. To protect the flower bulbs, also wrap them in paper. Alternatively, you can store the bulbs in sand or peat. However, this should not be damp, as otherwise mold and rot will spread. Contact can also lead to damage, so the bulbs should not simply be stacked on top of each other. Since you'll be completely burying the bulbs in the sand, it's helpful to keep them organized. Store the varieties separately and use labels. This simplifies garden planning for the coming season. The crate must be kept in a dark, dry, and frost-free but cool room. Temperatures between 5 to 10 °C are ideal. On mild days, you can ventilate.

It's not enough to simply store the bulbs in the cellar or another suitable place. You should regularly check their condition. Even with proper storage, problems can arise. Before diseased bulbs infect the others, dispose of them consistently. Also, make sure the room isn't too warm, so the flower bulbs don't sprout too early. If mice can find their way into your cellar, protect the box with wire mesh. If the winter protection for your flower bulbs has worked, they can go back into the garden soon after the Ice Saints (mid-May).