Tips for Proper Gladiolus Bulb Storage

If you are a gardening enthusiast, you probably know how important it is to store bulbs in the right way. Gladiolus bulbs are no exception, and storing them properly will ensure that they remain healthy and ready for next season’s growth. In this post, we’ll discuss some tips on how to store gladiolus bulbs effectively.

When to Store Gladiolus Bulbs

The best time to store gladiolus bulbs is after the first frost has killed off their foliage. This usually occurs in late fall or early winter, depending on your climate.

Cleaning the Bulbs

Before storing your gladiolus bulbs, it’s essential to clean them thoroughly. Gently remove any remaining soil or debris from each bulb using a soft brush or cloth.

Drying the Bulbs

After cleaning, allow the bulbs to dry completely before storage. Spread them out in a cool, dark place with good air circulation for two weeks.

The Right Environment for Storing Gladiolus Bulbs

It’s crucial to create an environment conducive to preserving your gladiolus bulbs throughout their dormant phase.

Temperature Control

Gladioli require a temperature of between 35-50°F (1-10°C) during storage – cooler temperatures help prolong dormancy. Place the cleaned and dried corms inside paper bags filled with sawdust/vermiculite/perlite as these materials offer insulation against extreme temperatures fluctuations which might cause rotting of the corms brought about by condensation within bags when different temperature zones meet.

Avoid exposing stored corms directly under sunlight since they can become too hot causing dehydration leading drying up of stored food reserves thus rendering them unusable come planting time


To maintain a consistent temperature, store your bulbs in an unheated garage or basement. If this is not possible, consider using a refrigerator’s crisper drawer.

Humidity Control

The environment in which you keep your gladiolus bulbs should also be dry with low humidity to prevent fungal and bacterial growth that can damage the corms. The ideal relative humidity level for storage ranges from 50-60%.


Test the moisture level of the medium inside bags regularly during storage and adjust accordingly.

Dangers to Avoid When Storing Gladiolus Bulbs

There are several dangers you need to avoid when storing gladiolus bulbs:

Pests Infestation

Mice and other rodents love chewing on tender corms making them unsuitable for planting hence thoroughly clean containers if reused year on year.

< h3>Fungal Infection

Ensure that corms are free of any visible spotting disease or mould infection before storing since these can rapidly multiply under favourable temperature conditions rendering stored stock unusable come spring.


Storing your gladiolus bulbs properly will guarantee beautiful blooms every gardening season. By following our tips on temperature control, humidity control and avoiding common dangers like pests infestation or fungal infections, you’ll be sure to have healthy bulbs ready for next spring’s planting!

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