Tigridia pavonia
Jacob Knecht (Mon, 23 Jul 2012 01:49:44 PDT)
Ina,
As long as you are planting them in well-drained soil in a north-facing
spot (would be south-facing in the Northern Hemisphere), they will persist
for many years even with winter rainfall. In this Berkeley planting strip
they come back year-upon-year:
http://flickr.com/photos/xerantheum/… just as I believe they
do at the UC Berkeley Botanical Garden.
Jacob
On 23 July 2012 00:46, Peter Taggart <petersirises@gmail.com> wrote:
I must apologise Ina,
Thank you for your correction Dylan.
It is I who is in error on this this time, I am not so familiar with the
rootstock of Tigridia.
Looking them up, I see Brian Mathew puts them down as bulbs along with
Trimezia described by him as bulbous/rhizomatous, and Herbertia described
as bulbous.
I shall look more closely at the rootstock of Tigridia when they are
available in the spring here !
However the rule of thumb given is not so good unless Irids excludes the
genus Iris as there are many old world Iris which are true bulbs, Iris
xiphium is a true bulb! Iris reticulata is too, and Iris serotina,
lusitanica, latifolia, Iris magnifica, aucheri, planifolia, palaestina,
histroides ....... I grow many bulbous Iris from the old world, as well as
many rhizomatous ones. Romuleas, Gladiolus, Crocus, Moreas (Gynandriris)
do have corms and occur in the old world too.
Peter (UK)
On Mon, Jul 23, 2012 at 5:24 AM, Hannon <othonna@gmail.com> wrote:
Tigridia species have true bulbs rather than corms. I believe this is
true
for all New World irids with "bulb-like" rootstocks. Corms are the rule
in
Old World genera.
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