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  Amorph Blues Part 2
From: "Marge Talt" <mtalt at hort.net> on 2004.07.30 at 08:31:29(11875)
All plants, including Amorphs, need to be hardened off gradually when
taken from inside to outside - no matter whether it's to get them
used to a change in temperature or not. You can't put them outside
in the sun without having leaf scorch - which is what happened to
your plants - because even if you had them under lights or in a sunny
window inside, the light intensity out side is much higher - even in
a shady spot. The leaves that the plant makes inside are simply not
use to that kind of light intensity and can't handle it. Best to put
them out in a shady spot and gradually move them into more light over
a period of about a week.

There's nothing you can do about the leaf damage at this point. As
you have noticed, the scorched bits will die off. The rest of the
leaf should remain. You can cut away the dead tissue if it gets on
your nerves.

From: "Wilbert Hetterscheid" <hetter at xs4all.nl> on 2004.07.30 at 11:44:19(11878)
Suddenly putting an Amorph in the sun is a bad idea. They are not sun-loving
plants to begin with, although some do accept a few hours when the leaves
have developed in bright conditions. I don't think your bulbifer will suffer
too much. It is a very strong species and even one of the few able to make a
second leaf after disturbance.

I guess your "hildebrandtii" is probably Am. taurostigma and that is a
species from brighter locations on Madagascar, so that one might be
"pre-adapted" to more light.


From: <r2ot at charter.net> on 2004.07.30 at 12:41:14(11879)

From: ken at spatulacity.com on 2004.07.30 at 13:02:43(11880)

It just got sunburned. This is common when placing any plant outdoors in the
sun after it's been indoors. Even we cacti growers take weeks to acclimate
our plants to the outdoor sun, starting first in a partly sunny location and
moving gradually into as much sun as the plant will like.

This is a good lesson that a lot of plant-o-philes need to learn more than
once. A sunny window is no match for direct sun outdoors. The intensity
outdoors is *much* higher and plants get sunburn just like people. The plant
should survive, but if the leaf is too damaged then you must hope for a new
leaf to sprout.

From: "bamboochik" <bamboochik at earthlink.net> on 2004.07.30 at 15:42:15(11881)
Strong light is not the same as full sun. It just means bright shade with no
actual sun touching the leaves except maybe in the early morning. Many
people have lost plants this way.

I would take it back inside and just do a "wait and see" if it can recover
next year... Don't over-water or feed the plant. I have found that a
B-complex -10mg can often help a plant through a rough time...b.f.n...deb

From: Neil Gordon <neil at ng23.abelgratis.co.uk> on 2004.07.30 at 17:21:00(11883)
Yup, pretty much as i expected.

Thanks for your advices guys and gals.

All i can say is a quote from the great Homer himself. (Simpson that



From: "CHAZMG1 at citlink.net" <chazmg1 at citlink.net> on 2004.07.31 at 00:08:10(11888)
I assume each species will vary somewhat, but how much sun is best for
good growth?

I have had my A. konjac out in partial sun the last 3 years. This year
it is getting actually quite a bit of sun (3 or so hours more or less
direct) without any sign of burn other than a very small portion of an
edge or so. My plant is near blooming size.

Good luck with the bulbifer.


From: "Susan Cooper" <coops at execpc.com> on 2004.07.31 at 12:08:42(11889)
> All plants, including Amorphs, need to be hardened off gradually when
> taken from inside to outside - no matter whether it's to get them
> used to a change in temperature or not.

To my dismay, I found you can also get leaf scorch through bright light-
over one winter, I had some varigated Clivias in the basement. When
it got warm, I brought them outside and put them into a small opaque
plastic greenhouse. They got badly scorched, even thought they weren't
in the direct sun!
I agree with Marge, move the plant into dappled shade. Wait for the
next leaf. At least Amorphs don't take several years to recover....


From: chris bob <handspeakboy at yahoo.com> on 2004.07.31 at 22:47:59(11893)
I am also very currious about mow much sun is required for these guys... It seems like I am hearing anywhere from deep shade to an entire day of direct sun.. I do understand that it will depend on the variety. I know that bulbifer is more sensative to sun than konjac is.

What I would like to know is what is the optimal.. Mine are currently getting 2.5 to 3 hours of full direct sun now with no signs at all of scorching... is this enough for good tuber growth ?


From: Neil Gordon <neil at ng23.abelgratis.co.uk> on 2004.08.01 at 20:18:05(11903)
Well, at least its not JUST me!

I was at Kew gardens today, and their Amorphophallus section had an A.
Bulbifer which was also quite badly singed, as were 4 or 5 other ones
only not nearly as bad.

It has been quite sunny here in the UK for the last few weeks!

There are 4 (full grown?) A Titanums their at the moment, one of which
is about do start resting, and the other 2 look like they might be
about to do the same, and one thats budding a new leaf, about 1 meter
high at the moment, they look fantastic all furled up!


From: Al Wootten <awootten at nrao.edu> on 2004.08.02 at 13:42:01(11908)

As usual I was late getting my plants out from winter storage; A.
bulbifer already had 4" growth on it. Although I put it in a shady
spot, someone tidying up the garden moved it into direct sun about early
June. The growth shriveled and fell off. Now there is a strong growth
again, which elongated from an adjacent spot on the corm.

Clear skies,
Quoting Neil Gordon :

Sigh, ok last week i decided to put my A. Bulbifer outside, as we

From: "Marge Talt" <mtalt at hort.net> on 2004.08.02 at 16:50:42(11910)
I think this must depend a lot on just where you are....sun being
hotter the farther south you go (in the northern hemisphere)

After I read one post about them needing shade, I got a bit nervous
as mine are in what passes for sun here - nothing overhead and direct
sun for about 2 or 3 hours a day and seem quite happy. The ones that
I had at the edge of the covered walk, only getting some morning
rays, were leaning toward the light, so I moved them to the "sun"
position and they are doing fine - no scorch. I do think making sure
they have plenty of water is important if they are getting sun - I am
speaking of plants in pots - drying out will also scorch leaf edges.

Marge Talt, zone 7 Maryland

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