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Sun Sep 23 20:17:51 CEST 2007

hardy  Aroids)" <ARISAEMA-L at NIC.SURFNET.NL> Aroids)" <ARISAEMA-L at NIC.SURFNET.NL>
Sender: "Arisaema Enthusiast Group (AEG) Discussion List (and other=
From: David Shaw <delftshaws at HOTMAIL.COM>
Subject: Re: Out in the cold?
In-Reply-To: <d03.1b3892dc.3426b5c3 at aol.com>
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Hello, as a newbie may I take a couple of lines to introduce myself.
My name is David Shaw and I live near Forres in northern Scotland. Forres=i=
s about 25 miles east of Inverness and 2 miles from the Moray coast.
My wife and I are active long term members of Scottish Rock Garden Club a=nd=
grow an eclectic range of alpine and woodland plants and bulbs. We have =en=
thusiastically grown Arisaema for about five years now but do not conside=r =
ourselves 'expert'. We are just very enthusiastic growers.
To the topic in hand.
We have never used fridge treatments for any seed. Our normal practice fo=r =
all seed is to sow as soon as possible. Garden or holiday collected seed =is=
sown immediately on returning home and exchange seed as soon as delivere=d.=
The seed is sown in a pot of compost and left outdoors until it germinat=es=
. Some grow others don't!
Last season we sowed 24 pots of Arisaema both from the garden and from th=e =
SRGC exchange. Of these 14 germinated this year and so 10 have yet to ger=mi=
nate. The ones that did germinate would generally be considered easy (is =an=
y plant 'easy') and the ones yet to germinate include erubescens, serratu=m =
and sikokianum.
Winter of 2006/7 was very mild with little hard frost and only a few days=w=
hen I had to scrape my windscreen.

David

Date: Sat, 22 Sep 2007 14:15:31 -0400From: JimMcClem at AOL.COMSubject: Re: =Ou=
t in the cold?To: ARISAEMA-L at NIC.SURFNET.NLIn a message dated 9/22/07 1:2=3:=
29 PM, martin at MASERVICES.FSNET.CO.UK writes:
Do they need cold for germination? I have successfully germinated seeds o=ff=
lavum, I know this is easy, without any cold treatment.I plan to look at =se=
veral different species of seed over this winter to seeif there is any di=ff=
erence in cold vs no cold treatment. Will let everyoneknow of outcome nex=t =
year.Cold for long term storage, maybe?Most arisaema seeds do not need a =co=
ld period. What they get from a winter in the wild is the removal of some=s=
ubstance on the seed surface that inhibits germination. That winter washi=ng=
can easily be duplicated by an overnight soaking in a glass of water wit=h =
a few drops of detergent added.If they are then kept in a moist paper tow=el=
in a warm area (the method originated by Marge Edgren and popularized by=N=
orman Deno), they will usually begin germinating within a week or two, bu=t =
then you have to decide what to do with them.I plant them in a pot, indoo=rs=
under lights, and grow them on until they grow dormant. I then collect t=he=
tuberlets and refrigerate them in slightly moist conditions (usually in =a =
plasitic bag with almost dry sphagnum) for 3 months. They can then be pla=nt=
ed again either in a pot or in a bed (depending on the weather) and start=t=
heir second period of active growth.The point of all this is to shorten t=he=
time frame to flowering size.JimJim McClements50 S. Prestwick Ct.Dover, =De=
laware 19904, USAZone 7a302-734-2836*************************************=*S=
ee what's new at http://www.aol.com ===============
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<body class='hmmessage'>Hello, as a newbie may I take a couple of lin=es t=
o introduce myself.<BR>
My name is David Shaw and I live near Forres in northern Scotland. Forres=i=
s about 25 miles east of Inverness and&nbsp;2 miles from the Moray coast.=<B=
R>
My wife and I are active long term members of Scottish Rock Garden Club a=nd=
grow an eclectic range of alpine and woodland plants and bulbs. We have =en=
thusiastically grown Arisaema for about five years now but do not conside=r =
ourselves 'expert'. We are just very enthusiastic growers.<BR>
To the topic in hand.<BR>
We have never used fridge treatments for any seed. Our normal practice fo=r =
all seed is to sow as soon as possible. Garden or holiday collected seed =is=
sown immediately on returning home and exchange seed as soon as delivere=d.=
The seed is sown in a pot of compost and left outdoors until it germinat=es=
. Some grow others don't!<BR>
Last season we sowed 24 pots of Arisaema both from the garden and from th=e =
SRGC exchange. Of these 14 germinated this year and so 10 have yet to ger=mi=
nate. The ones that did germinate would generally be considered easy (is =an=
y plant 'easy') and the ones yet to germinate include erubescens, serratu=m =
and sikokianum.<BR>
Winter of 2006/7 was very mild with little hard frost and only a few days=w=
hen I had to scrape my windscreen.<BR>
&nbsp;<BR>
David<BR><BR>
<BR><BR><BR>&nbsp;<BR>
<BLOCKQUOTE>
<HR id=EC_stopSpelling>
Date: Sat, 22 Sep 2007 14:15:31 -0400<BR>From: JimMcClem at AOL.COM<BR>Subje=ct=
: Re: Out in the cold?<BR>To: ARISAEMA-L at NIC.SURFNET.NL<BR><BR><FONT face==
=arial,helvetica><FONT face=Geneva color=#000000 size=2><=BR>In a me=
ssage dated 9/22/07 1:23:29 PM, martin at MASERVICES.FSNET.CO.UK writes:<BR>=<B=
R><BR>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: =#000=
0ff 2px solid; MARGIN-RIGHT: 0px"></FONT><FONT face=Geneva color==#00000=
0 size=2>Do they need cold for germination? I have successfully germi=nate=
d seeds of<BR>flavum, I know this is easy, without any cold treatment.<BR=>I=
plan to look at several different species of seed over this winter to se=e<=
BR>if there is any difference in cold vs no cold treatment. Will let ever=yo=
ne<BR>know of outcome next year.<BR>Cold for long term storage, maybe?<BR=><=
BR></BLOCKQUOTE></FONT><FONT face=Geneva color=#000000 size=2=><BR>Mos=
t arisaema seeds do not need a cold period. What they get from a winter i=n =
the wild is the removal of some substance on the seed surface that inhibi=ts=
germination. That winter washing can easily be duplicated by an overnigh=t =
soaking in a glass of water with a few drops of detergent added.<BR><BR>I=f =
they are then kept in a moist paper towel in a warm area (the method orig=in=
ated by Marge Edgren and popularized by Norman Deno), they will usually b=eg=
in germinating within a week or two, but then you have to decide what to =do=
with them.<BR><BR>I plant them in a pot, indoors under lights, and grow =th=
em on until they grow dormant. I then collect the tuberlets and refrigera=te=
them in slightly moist conditions (usually in a plasitic bag with almost=d=
ry sphagnum) for 3 months. They can then be planted again either in a pot=o=
r in a bed (depending on the weather) and start their second period of ac=ti=
ve growth.<BR><BR>The point of all this is to shorten the time frame to f=lo=
wering size.<BR><BR>Jim<BR><BR><BR><BR>Jim McClements<BR>50 S. Prestwick =Ct=
.<BR>Dover, Delaware 19904, USA<BR>Zone 7a<BR>302-734-2836<BR></FONT><FON=T =
face=Geneva color=#000000 size=2></FONT><BR><BR><BR>*********=********=
*********************<BR>See what's new at http://www.aol.com ======
===========================
===========================
================= Search the Arisaema-L arch=
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ema-l.html 
Arisaema-L HOME &amp; GALLERY: http://florapix.nl/Arisaema-L 
<P>For help with this list, send an e-mail to the listowners at: Arisaema=-L=
-request at nic.surfnet.nl ==========3=D========
===========================
===========================
=== <BR></BLOCKQUOTE></FONT><br /><hr />Do you know a place l=ike the =
back of your hand? Share local knowledge with  <a href='http://www.ba=ckof=
myhand.com' target='_new'>BackOfMyHand.com</a></body>
</html>=
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Search the Arisaema-L archives & subscription options -
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<p>
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<p>
For help with this list, send an e-mail to the listowners at:
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