Paramongaia weberbaueri - Dormancy Questions

Dan Pogust via pbs pbs@lists.pacificbulbsociety.net
Mon, 04 Oct 2021 12:20:34 PDT
Hi there,

A friend of mine gave me a Paramongaia weberbaueri bulb along with a few
other things. Everything he sent me was summer-growing (Stenomesson
miniatum, Clinanthus variegatus, Nerine laticoma, Nerine bowdenii). When I
was reading about the Paramongaia, I saw that there’s a winter-growing
version and a summer-growing version. When I asked him if he knew which it
is, he said he didn’t know but doesn’t follow dormancy patterns anyway.

I planted the Stenomesson, Clinanthus, and Paramongaia together in a pot
indoors and the Nerines outdoors, and they all sprouted immediately
(August). They’ve all been growing well and leafing out well.

The Stenomesson and Clinanthus seem to be going dormant (in line with PBS
cultivation info: October) but the Nerines outdoors and the Paramongaia
indoors seem to be growing more rapidly. I’m assuming that the Nerines grow
until it gets colder (unless they were mislabeled west cape species), but
can anyone give me some insight into the Paramongaia and whether rapid
growth in October is a sign that it’s more likely the winter-grower than
the summer-grower? I’m assuming they all might be a bit confused but I
really don’t want anything to rot. I’m thinking of removing the Paramongaia
and planting it separately (I planted them together so they could bulk up
for a month or two after I treated and quarantined them for as a red
splotch precaution).

I’m in the Northern Hemisphere in Portland, Oregon, USA and my winter
dormant bulbs (both indoors and out) still have green on them. Temperatures
are 72F/22C max and 41F/5C with patches of consistent rain.

Thank you!!

Photo 1: Nerine laticoma and Nerine bowdenii
Photo 2: Clinanthus variegatus, Stenomesson miniatum, Paramongaia
weberbaueri
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