The main difference I can tell from descriptions is size - 'Limelight' can reach at least 6 ft. tall (mine is now, anyway), and 'Lollie Jackson' is supposed to be compact at 4 ft. I think there might be some slight differences in sizes of flowers and calyces, as well.

Brenda

Actually, Limelight is the compact one (4-5 feet), and has medium cobalt blue flowers (a little more to the purple than guaranitica, but about the same saturation) and chartreuse calyxes. Tula (from Yucca-Do) is the giant form with similar colored flowers and calyxes.

Lollie Jackson, introduced mainly through Yucca-Do, has longer and denser spikes of midnight purple calyxes and flowers and can get 6-7 feet tall, about one foot taller than the closely related La Placita and Puerto de la Zorra forms (both my introductions). These last two have similar foliage and colored flowers. Ocampo (from Yucca-Do) is the giant form with similar colored flowers and calyxes.

There is a really giant form from Oaxaca with dark flowers and calyxes which I got from Saso's Herb Garden in Saratoga, CA a very long time ago which I lost some time ago.

So I may not even have 'Limelight', as I thought! I'll take pics when it finally blooms, and see what you all think.

Sorry I flubbed that one, Jean! :D

Brenda