Morning Glories: sun or shade?, 0 by bluespiral

bluespiral wrote:
Hi Aunt Anne,

Looks like you and I got a few of the same ones from EmmaGrace. I'm attaching a pic of Ipomoea purpurea "Very large, very pretty" that you can see has grown up into a saucer magnolia, which, in turn, is shaded by a neighbor's American holly. The rose hips in the foreground belong to the tough, shade-tolerant 'Cornelia' - which makes a grand show in May, and then produces occasional blooms thereafter. So, ascertain which ones belong to the species I. purpurea, because those will be the most shade-tolerant mgs of the 3 species that it looks like you're growing (although they'll respond better to more light).

The one I think will need the most sun is I. tricolor 'Heavenly Blue', from past experience here in Maryland. I've only grown the one cultivar of this species, but what a sheet of color it made - it deserves lots of light, I think.

Cultivars belonging to I. nil seem to be somewhere between I. purpurea and I. tricolor with respect to the light requirements. I think Beth was absolutely correct about giving those some afternoon sun, as far south as you are. Generally, the nils don't seem to grow as tall or as vigorously as the purpureas, so are less likely to hoist themselves up into the canopy of a tree where they can get more light.

Hope I made some sense here - it's getting a bit late

karen