I have a question on gladioli?

Howdy, well last year I planted some gladioli and I forgot to dig them back up over winter. I know you can remove them over the winter, remove the top part and plant them the next year, but the bulbs have literally turned to goo. Should I just till over them, and plant the new ones in the same spot? or should I remove them from the ground for risk of them spreading some sort of funky plant disease or infection?

My logic was if they stay in the ground they might add nitrogen or something, but if they could cause a problem for the ones I'm planting this year I'll just dig them up.

Thanks

Answers:
Generally you should plant Gladioli in free draining soil, in fact I have known them to be placed in a trench about 6 inches deep with a thin bed of gravel on the base and then covered with gravel only and they grew fine.
In my experience they hate cold, wet soil with poor drainage. The corms are not frost resistant and will turn to mush if the cold kills them. Either remember to dig them up or bury them deep enough to avoid the frost. The deeper you bury them, the more sun the soil needs to get so they will grow early enough in the season, so dont bury deeply in a shady bed. Never more than 6 inches deep.I would always put a handful of gravel in when planting.
The gardener in Cumbria just proves that gardening is never a certainty and plants will often grow completely against all the acknowledged advice!

Other answers:
YOUR GOO BULBS ARE FROZEN BLOBS FROM HELLO! BRAIN FADE, IF THEY ARE PLANTED WHERE THE GROUND FREEZES YOU NEED TO DIG THE BULBS TO SAVE THEM FOR THE NEXT YEAR. LEAVE THEM WHERE THEY ARE---YOU REALLY DON'T WANT AN ANSWER, YOU HAVE DONE THIS BEFORE.
YOUR GOO BULBS ARE FROZEN BLOBS FROM HELLO! BRAIN FADE, IF THEY ARE PLANTED WHERE THE GROUND FREEZES YOU NEED TO DIG THE BULBS TO SAVE THEM FOR THE NEXT YEAR. LEAVE THEM WHERE THEY ARE---YOU REALLY DON'T WANT AN ANSWER, YOU HAVE DONE THIS BEFORE.
I have had gladioli in my garden for years. I never dig them up - in fact I just ignore them and they come back year after year. I live in Cumbria so we get a LOT of cold wet weather, and I have quite a heavy clay soil. They don't seem to mind, judging by the beautiful show they give me.
Your bulbs may have been diseased so I would remove them and avoid planting more in the same spot for a few years until the soil has had chance to recover. Plant elsewhere for now - it's worth it!
go ahead and buy new ones it wont hurt to leave the old one where they are i planted gladioli 4 years ago and have never dugged them up once if you are worry about them freese this winter get you some straw and cover them up before cold wheather sets in thats what i do and in the spring i just remove the straw
  • if you have 577 sqare feet and you remove 4 inches of dirt how many sqare yards do you get?
  • Origin of plant name Lavender Grappenhall?
  • When is the best time of year to cut locust fence posts ?
  • I need ideas on how to keep birds from eating peaches growing on my peach tree.?
  • The leaves on my butterfly bush are turning yellow, what could be causing this?
  • I bought a japanese maple and the roots were packed in clay. Do I remove the clay before planting?
  • What would be the best way of stopping my neighbours children climbing on my garden wall.Would a trellis work?
  • Where can i buy plants for my house?
  • How do you grow a ficus tree within your home?