Comprehensive Tutorial: Preserving Gladiolus Bulbs for Vibrant Blossoms Next Summer Season
In the vibrant world of gardening, gladiolus flowers are a popular choice for adding a burst of colour to any outdoor space. Here's a step-by-step guide on how to care for these beautiful blooms, from harvesting to storing.
After a bountiful harvest, it might be tempting to rinse or wash the bulbs. However, it's best to let them dry naturally for a few days instead. This process helps to prepare them for winter's chill.
When autumn arrives, it's time to dig up the gladiolus corms. This should be done after the foliage has yellowed and died back, typically in late September or October. Use a garden fork to loosen the soil without damaging the corms. Gently gather the bulbs in a sturdy basket, such as the Fiskars garden harvest basket, which is readily available on Amazon.
Once harvested, the corms need to be cured properly to survive the winter. This involves leaving them in a well-circulated spot that stays around 70 to 80°F (21 to 27°C) for 2 or 3 weeks. After drying, brush off the dirt and select the best corms to save, discarding any that are mushy or have pests.
Before replanting in spring, soak the bulbs in slightly warm water for a few hours to perk them up. For added protection, apply a light coat of fungicide, such as Bonide's sulfur powder fungicide, to prevent mold. It's also beneficial to dust the bulbs with Bonide rooting powder before replanting to kickstart growth.
When it comes to planting gladioli, they thrive in sunny and well-drained soil. A three-tiered rack from Amazon can be used as a drying rack for the gladiolus bulbs during the curing process.
In colder zones, 7 and below, it's important to harvest the bulbs before frost to prevent rot or frost kill. In these zones, store the bulbs in old paper bags or mesh sacks to allow them to breathe. They should be kept in a cool and dry place, around 35 to 45°F (2 to 7°C).
In warmer zones, 8 and up, where winters don't drop below 20°F (-7°C), you might be able to leave gladiolus bulbs in the ground if the soil drains well and a thick layer of mulch is applied. However, it's still a good idea to check the corms once a month, discarding any that feel mushy or look off.
Harvest the bulbs when the leaves go yellow, which is typically about a month or two after flowers drop in late summer or early fall. Planting gladioli in containers is a nice way to add a vibrant pop of colour to your porch or patio.
With these tips in mind, you'll be well on your way to enjoying beautiful gladiolus flowers year after year. Happy gardening!
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