Might be a second plant twined in...?

I wonder if they reseeded and the newer plants are reverting to an original variety? Sometimes when you plant a seed from something, like a fruit for instance, the plant that comes up produces flowers and or fruits that are not the same as the mother plant. It has something to do with genetics that I don't understand.

Or, it might be that the original plants were NOT blue, but rather infused with blue food dye. The big box stores sell orchids that have been artificially colored. I've never heard of them doing this to annuals, but hey, anything for a buck, right?

I was thinking along the lines of what Rita said unless it's the same plant. If it's the same plant I would just give it some balanced fertilizer or some Black cow etc.

The blue morning glories are hybrids, and they're annuals, so they reseed themselves every year. The flowers often get cross-pollinated with other plants of the same family, and can come out different from the mother plant. Unfortunately, Ipomoea is the largest flowering plant family there is. If you have something like scarlet creeper, cardinal climber, or even blooming sweet potatoes in your yard, or if any wild morning glories or railroad vine within a mile are blooming, they can be cross-pollinated. I had the same problem with some of my morning glories, so I just bought a 2/$1 pack every year at Dollar General to get my blue morning glories. In SC, morning glories and bindweed were weeds, and undeveloped and unplanted fields were often completely covered in summer by gorgeous arrays of morning glories in multiple colors. I gathered seeds from them and planted them along my hedgerow, so they covered the trees and shrubs there every year.

I went out today after work and a normal blue one was open. Lol.

I can't wait to plant more! Just waiting a lil longer to let all the possible cold snap pass as I heard they are not fans of the cold. I also read that there are other colors than blue. I think I'll be on the look out for other colors!

Even if the fence is not the best site for them the seeds are so cheap and the poor location will just help with keeping them from going out of control.

Here are today's, I'll check them again tonight to see if they fade during the day.

Purple today

I checked from across the yard and if the color had faded, it was nothing like that purple and pink from the other day!

I am still so curious about the pink stripes, did it open in the morning that way? (I was at work all day and did not see it until 6 something that night)

I don't think there are gonna be any blooms today, it is so gloomy and dark out this morning.