Major excitement in the cold frame -Arum

Peter Taggart
Thu, 16 Feb 2012 14:45:39 PST
I keep Arums in pots to contain them.
I lost creticum last winter (-18c) and a couple of others, but I admit the
creticum was not properly plunged.
Peter (UK)

On Thu, Feb 16, 2012 at 9:57 PM, aaron floden <>wrote:

> Jim,
>  Curious to know what Arum you house in a cold frame vs. planting them
> outside. I know the topic of Arum hardiness has been discussed several
> times, but I find very few of the species on the tender side (those that
> died may not have been due to tenderness).
>  I grow the following outside for more than two winters with lows to 7F
> and nearly a week, last year, of high daytime temperatures below freezing.
> This winter has not been a challenge for anything. None of these get
> special treatment; no amended soil, extra mulch, near the house, etc.
> Surprisingly A. pictum looks better outside than concinnatum, hygrophilum,
> and one clone of italicum from southern Italy. Arum idaeum and A. apulum
> died the first winter here, but was not likely cold that did it.
>  Arum albispathum
>  Arum alpinum 2-4 clones
>  Arum aff. byzantinum
>  Arum concinnatum 4 clones
>  Arum creticum ex Pilous
>  Arum dioscoridis
>  Arum hygrophilum
>  Arum italicum numerous clones
>  Arum maculatum
>  Arum nigrum 2 clones
>  Arum orientale
>  Arum pictum ex Ceni
>  Arum rupicola 2 clones
>  Arum sintensii
>  Aaron
>  Knoxville, TN zone 6-7
> --- On Fri, 2/17/12, Jim McKenney <> wrote:
> From: Jim McKenney <>
> Subject: [pbs] Major excitement in the cold frame
> To: "Pacific Bulb Society" <>
> Date: Friday, February 17, 2012, 12:32 AM
>  the cold frame is seriously overcrowded (the Arums have to go),
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