Growing Arisaema

[guy gusman]

>Rand,
>
>>>Just to be sure: We are not talking of the natural sloughing away of the
>>>old tuber's growth at the end of the growing season? As in: "rot on the
>>>bottom."
>
>No, this is where a greater or lesser part of the tuber has gone to a starchy
>paste, leaving, perhaps, part of the main growing point plus some 'shoulder'
>tissue (where the offsets form) sound.
>
>BTW (i) do all species produce offsets?
>         (ii) which ones, apart from consanguineum and exappendiculatum,
>produce their offsets on stolons?
>
>Simon

Simon,
Offsets are produced on most arisaemas but some are more efficient than
others: for instance, A. ovale produces much more offsets than its relative
A. amurense and, up to now, I never get offsets on e.g. A. iyoanum.
Stolons are produced by some species but only when conditions are
favorable: mature specimens, good growing conditions... But A.
consanguineum is not stoloniferous. On the other hand, stolons are produced
namely on A. exappediculatum, as you noticed, on its close relative A.
concinnum, on the Japanese A. ternatipartitum and on the Chinese A.
ciliatum.
Regards,
Guy