Others may have experienced differently, but my Heavenly Blue MGs normally don't return even tho I'm sure seed is dropped in the fall before I get the vines cleaned up. Other varieties of MGs do however.

As far as the sweet peas, I haven't attempted to grown them but several times and when they did manage to sprout and grow, the blooms remained well into August. And these were not real healthy looking vines. Except for the unscented sweet peas in the orchard - forgot about those - they are perennial and have come back in the spring for many years now and are re-bloomers.

My mom grows them together and loves it! It's one of her favorite combintion of flowers in her garden :)

Morning glories continue to bloom all summer where sweet peas stop blooming when the temps warm up. My sweet peas begin to fade around May. Weeding out dead sweet peas with other vines can be difficult.

{{gwi:462248}}

ToDanceWithWolves:

I think you are so much warmer earlier than where I am. I am on the line of 6b/7a and my morning glories are not even sprouting until May!

I've never seen a row of sweet peas like that, very pretty Dance. I'm trying to think if I have a sunny area I could try that in.