Manfreda/Agave virginica
Steve Marak (Fri, 02 Jul 2010 13:36:35 PDT)
Kelly,
We've seen this a lot with Ozark plants, including Manfreda, from rocky
glades with poor soil that get lots of sun, and are usually very wet in
the spring and very dry in the summer.
We've found a lot of plants - Manfreda, Ruellia humilis, various
Asclepias, etc. - that seemed to have exceptional color (chartreuse
leaves, variegation, exceptionally dark leaves, good markings), or that we
thought were dwarf forms, and when we grew seed from that plant, or in a
few cases moved plants, they behaved very differently in our yard, usually
losing the trait(s) which caused us to notice them in the wild. The
Manfreda I mentioned whose flower spike is now well over 8 feet tall (2.5
meters) in my garden was rescued from highway construction, and we never
observed a spike in that population much over 5.5 feet (1.7 m) in the 10
or more years before we moved it.
One of the few exceptions is an Asclepias verticillata which my wife grew
from seed collected on a hot dry roadside, which has turned out to be
even more spectacular in a sand bed than its parents were in the wild.
(But then, for all I know that's just how A. verticillata responds to
cultivation ... maybe it's not really spectacular at all.)
I'm hoping your Manfredas will be exceptions and hold that color, though.
I love the well-marked forms, and just wish they were hardier.
Steve
whose seed-grown Mirabilis multiflora has now survived two winters
outdoors in NW Arkansas and finally managed some flowers
On Fri, 2 Jul 2010, Kelly D. Norris wrote:
...
I botanized the Ozarks last June and found a lot of interesting variation in
M. virginica in the wild, as Aaron notes below. On most glades where we
were, flower stalks were just forming, but looked like they would top out in
the 4-5' range. The foliar maculation was superb though, and I collected a
couple of forms with lots of red from the base to the apex of the leaf.
Some looked like you dropped a paint ball in the center.
I potted them up and held them in a cold house over the winter. This year
the foliage has yet to really take on the intensity of the red coloration we
observed last year, making me wonder if this trait is really genetic of
merely phenotypically plastic.
...
-- Steve Marak
-- samarak@gizmoworks.com