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Re: [Aroid-l] arum question

Hello, Tony!

Maybe you are correct about the envy. But we must all remember that no
matter which aroids we enjoy, we are all "brothers in arums".

Yes, I have had that happen. It does not happen every year, but it does
happen. I have a bed of A. italicum on the north side of my home, right
under the condensation drip of my air conditioner. Additional shade is
provided by a 1.5 meter Tasmanian tree fern and lots of sword fern. Add to
that a top dressing of babies tears, and this one bed stays fairy cool and
moist. As a result, a small fraction of plants do not go dormant during the
summer about every three years or so. The plants that did not go dormant in
the summer always do in the autumn, and start poking up again mid winter. I
tried to recreate these conditions as an experiment and the tubers rotted.

As a side issue, I have had an A. palestinum ecotype from Mt. Carmel break
dormancy in July and August rather than December/January, but again not
every year. Also, I think that CJ Addington has had A. pictum bloom in the
spring rather than in the fall.

In that same vein, I have one Pinellia pedatisecta starting to come up. It
and all its buddies just went dormant a month and a half ago.


D. Christopher Rogers
Invertebrate Ecologist/Taxonomist

EcoAnalysts, Inc.
(530) 406-1178
707 Dead Cat Alley
Suite 201
Woodland, CA 95695 USA

? Invertebrate Taxonomy
? Invertebrate Ecological Studies
? Bioassessment and Study Design
? Endangered Invertebrate Species
? Invasive Invertebrate Species
? Periphyton/ Phytoplankton
? Zooplankton

Moscow, ID ? Bozeman, MT ? Woodland, CA ? Joplin, MO ? Selinsgrove, PA

-----Original Message-----
From: aroid-l-bounces@gizmoworks.com
[mailto:aroid-l-bounces@gizmoworks.com]On Behalf Of Tony Avent
Sent: Thursday, September 13, 2007 9:51 AM
To: Aroid - L group
Subject: [Aroid-l] arum question


At the risk of encouraging the wrath of the tuberous aroid detractors
(probably phallus envy), I'm curious if anyone has had an Arum italicum
clump that refused to go dormant in the summer, despite three weeks of
100 degree temperatures.  It's almost time for them to start re-emerging
and this one thinks it's still spring.

Tony Avent
Plant Delights Nursery @
Juniper Level Botanic Garden
9241 Sauls Road
Raleigh, North Carolina  27603  USA
Minimum Winter Temps 0-5 F
Maximum Summer Temps 95-105F
USDA Hardiness Zone 7b
email tony@plantdelights.com
website  http://www.plantdelights.com
phone 919 772-4794
fax  919 772-4752
"I consider every plant hardy until I have killed it myself...at least three
times" - Avent

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