Is It Possible for Gladiola Bulbs to Expire?

JamieM added on November 7, 2015 | Answered

I have gladiola bulbs and I know they are old - many are likely over 20 years old (no kidding). I faithfully dig them up every late summer, and replant them in or around April. The last 2 summers they only produced a few flowers, where before the flowers were plentiful. Could it be they have come to the end of their "shelf-life"? Any suggestions on how they could be saved, or reinvigorated, would be greatly appreciated. Thank you.

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Certified GKH Gardening Expert
Answered on November 10, 2015

Gladiola corms are most productive in the first 6 years of their life.
They often decline in flowering as they become older, so it is a good idea to save cormels to develop a continual supply of young, healthy corms.

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