A. griffithii v.pradhan

[Henry]

Adam,

As an experiment, I planted a row of grape hyacinth perpendicular to
the house all the way to the street.

Those near the house came up first and were a foot tall before those
twenty feet from the house came up at all.

There was a gradual shortening of the plants as you left the house, but
out to twenty feet they came up early. All the ones beyond twenty feet
came up together much later.

The plants five feet from the house were only a few inches shorter than
the ones directly next to the foundation.

Based on this, it is my feeling that foundation heat would be playing a
modifying role even five feet from a foundation.

--Henry Fieldseth
Minneapolis, Minnesota, USA, zone 4



--- Adam Fikso <irisman at AMERITECH.NET> wrote:
> Hello all. I was delighted to see--just now-- the emerging cataphyll
> sheath
> of A. griffithii, v. pradhan.  So, I can confirm that it is probably
> hardy
> in Zone 6.  I am in Zone 5a, but the winter was relatively mild, with
> only 2
> nights of 0. F weather, during a two-week period of single digit
> weather
> where the range was from 0 to 13F.  The tuber was planted about 8"
> deep in a
> clayey loam that has had occasional fertilization during the last  3
> years.)
> The bottom of the hole was  amended with  a handful of gypsum and pea
> gravel
> in the bottom, dug in for about another inch or two.
>
> There was a recent question about  A.griffithii's hardiness, so this
> should
> be useful information.  The tuber was planted about 4.5 feet from the
>
> concrete block foundation of my house on the east side, where it is
> warmed
> by morning sun.  Radiant ground heat from the basement and the house
> foundation is regarded as too far away to have made  much more than a
>
> minimum difference.   In this area, the frost line is regarded as at
> least 4
> feet below ground, for the location of water pipes, etc..
>
> The height of it is about 4" which suggests that it came up with the
> sikokianum, the SikoTak, and a day or two before the earliest
> triphyllum I
> have--unless, of course,it grew 4" overnight.  Of course this raises
> the
> question as to whether there is much data on the growth rates of
> these
> things.  Please, Ray, Don't send me to the Archives, as I have not
> been able
> to find anything there rapidly enough, even if it is there.  I'm
> willing to
> do my homework, but basically, I'm still a 3" x 5 card" man,  or
> maybe
> Hollerith cards, even..
>
>     Happy growing, Adam Fikso-- in Glenview, IL.
>

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