Polianthes geminiflora

Dennis Kramb dkramb@badbear.com
Mon, 25 Jul 2011 19:44:12 PDT
In winter I did that quite by luck.  In winter time I kept them in a south
facing window where they got direct sunlight, but there was also a
fluorescent light for them too.  They stayed ever green, and grew slowly.  I
never allowed the soil to completely dry out.  In summer, I set them
outdoors but they dried up once or twice in direct sun..... and they went
dormant.  Now they are in a shadier spot getting regular water and they are
all coming back.  I will keep them well watered as you suggested.

Thanks a bunch!

On Mon, Jul 25, 2011 at 12:53 PM, Dennis Szeszko <dszeszko@gmail.com> wrote:

> Dennis:
> A few notes about the culture of P. geminiflora.  I have seen this species
> growing in warm oak forests in Mexico  that are seasonally very dry.  They
> grow in highly mineralized clay soils and are accustomed to a 6 month dry
> season.  Your mistake was in trying to keep them green during the winter,
> when you should have let your plants die back naturally by withholding
> water.
> Recipe for success:
> Water your plants and provide almost full sun from May 15 to October 15 but
> then only just enough water (once per month?) to keep the soil from
> completely drying out from October 15 to May 15.  Almost all of the bulbous
> plants (Bessera, Tigridia, Calochortus etc) in the same habitat as P.
> geminiflora react to the onset of summer rain by starting growth
> immediately
> after receiving a good soaking, so I'd be careful of overwatering during
> the
> dry season lest they commence growing unnaturally.  This species grows in
> warm temperate oak forests at around 1700 m., so it should adapt well to
> growing outdoors in the US during the summer.
> I hope this helps...
> -Dennis
> >Polianthes geminiflora is a little perplexing to me.  I thought I would
> >struggle to keep it happy through the winter, indoors under lights, but in
> >actuality keeping it happy outside has been far more difficult.  Most of
> >them died back, and are just now resprouting.  I don't know what they
> >want... maybe more water, more shade, or less heat?
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