Pink to yellow?

For the last 2 years, all of my gladioli have been a bright rosey pink. This year, 3 of my stalks had bright yellow blooms. I dug up the corms last fall and replanted to thin them out so I dont know if it’s something I did?!? (Zone 6b) How did my blooms change colors?

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1 Comment To "Pink to yellow?"

#1 Comment By Downtoearthdigs On 08/25/2018 @ 9:02 pm

As you know, glads grow from corms. The corms produce little offsets that eventually mature into corms large enough to support foliage and a flower stalk. When bulbs, corms or rhizomes remain in the same bed for a few years, the strongest hybrids gradually crowd out the weakest hybrids. As a result, you’ll end up with a bed full of yellow glads, when you originally planted lots of different colors. The best way to keep this from happening is to dig and replant your corms every year or two, separating the offsets and planting them elsewhere until you know what color they are. Digging will enable you to take inventory every year or two, and to keep only those colors you really like and sharing the others with gardening friends.

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