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Bringing in Annual Bulbs in the Fall

Annual bulbs, also known as tender bulbs, cannot withstand the harshness of winter. It is therefore essential to dig them up and store them indoors during the cold season. This crucial step ensures their survival and a resplendent bloom the following year.

Which bulbs to bring in during the fall?

Here are some examples of bulbs to bring in during the fall:

  • Rhizomes: Cannas
  • Tubers: Begonias, Dahlias
  • Corms: Gladiolus
  • Bulbs: Callas, Oxalis, Caladiums

When to bring in annual bulbs?

The ideal time to bring in bulbs varies depending on your region and its climate. As a general rule, proceed:

  • At the end of fall, when nighttime temperatures regularly approach the freezing point.
  • After the first light frost.
  • When the leaves of the bulbs turn yellow or begin to wilt, a sign that their growth for the year is over and they are ready to go dormant.

How to bring in the bulbs?

Follow these steps to properly bring in your bulbs in the fall:

  1. Stop watering as soon as the leaves begin to yellow. This will allow the bulbs to dry gradually and go dormant.
  2. Cut the wilted leaves about 5 cm (2 inches) above the ground. This step prevents the appearance of fungi or diseases during storage.
  3. Carefully dig up the bulbs using a spade or hand fork. Dig deep enough to lift them without damaging them.
  4. Remove the soil around the bulbs by gently shaking them. Brush them gently or use your fingers to remove any remaining dirt.
  5. Let the bulbs dry in a dry, well-ventilated area for one to two weeks, away from direct sunlight. Complete drying is essential to prevent rot.
  6. Store the dry bulbs in a cool, dark, and dry place for the winter. Use wooden crates, burlap bags, or perforated cardboard boxes to ensure good ventilation. Do not pile them up and avoid places that are too humid or too warm.
  7. Check the condition of the bulbs regularly during the winter. If you notice any signs of mold or disease, quickly remove the affected bulbs to prevent contamination of others.
  8. Replant the bulbs in the spring when temperatures begin to warm up. Make sure to plant them at the correct depth, respecting the specific needs of each variety.

Additional tips:

  • If you are storing different types of bulbs, label them clearly for easy identification in the spring.
  • Some bulbs, such as dahlias, can benefit from a light dusting of antifungal powder before storage to prevent diseases.
  • If you lack cool storage space, consider storing your bulbs in the vegetable crisper of your refrigerator, placing them in a perforated paper bag.

By following these tips, you will give your annual bulbs the best chance of survival during the winter and you will be rewarded with spectacular blooms when the warm weather returns. Remember that each variety may have specific needs, so do not hesitate to consult additional resources for more detailed information on storing your particular bulbs.