Hello everyone, sorry if this is the wrong section, but I wanted to know when should I remove my Gladiolus plant, all of the flowers have dried and died for weeks now, but it still green, solid and healthy, also there is this strange bulb-like thing in the place that one flower had been.

So anyone knows what that is, and when should I harvest the bulbs?

This would be my first time harvesting and growing Gladiolus.

Linked are the photos of the plant and this "strange bulb-like" on the plant.

Thanks in advance!