Hippeastrum seeds

Angela and Dean Offer angelasgarden@bigpond.com
Sun, 06 Nov 2005 19:17:23 PST
When sowing hippeastrum seeds they have to be very fresh seeds.
Sunny Albany Western Australia
----- Original Message -----
From: Hans-Werner Hammen <haweha@hotmail.com>
To: <pbs@lists.ibiblio.org>
Sent: Saturday, November 05, 2005 3:22 AM
Subject: Re: [pbs] Hippeastrum seeds

> Hello Darren:
> the total  depth of these 50 cm x 18 cm boxes is 15 cm and the height of
> seed beds is then 12 to 14 cm.
> However;
> The dimensions are not critical and do not decide on fortune as regards to
> raising seedling of hippeastrums or other amaryllogene plants with these
> papery foiled seeds.
> A lower drainage layer of some cm of seramis, perlite, expanded clay
> (regardless whether these are totally porous (Seramis) or not, or charcoal
> grains is sufficient, let's say 5 cm. But 10 cm is good, too.
> Care should be taken (it should be controlled) that the drainage bullets
> not clog the drainage holes on the ground of the sowing box. I drill
> numerous additional drainage holes of 0.5 cm diameter to ensuire good air
> supply from belw. That is soo important - particularly when I rinse so
> thoroughly with approx. 1 total seed bed volume of water(!)
> The drainage layer is then covered carefully - without mixing - with the
> substrate, that is coco peat, the height not being critical, too;
> like 9 cm.
> If you change the proportion of substrate to drainage layer towards the
> latter, then my previously recommended very thorough waterings might be
> critical for seedlings of those amaryllids (or any other seedlings) which
> are supposed to be very sensible and likely to rot. On the other hand you
> will have to water more often.
> If you sow seeds from a vigorous hippeastrum cultivar you will better use
> full height of 10 cm of coco. But if you sow thse far smaller seeds of a
> more tiny cultivar for example from crossing H.cybister "Chico" with
> smaller growing hybrid  like "Pink Floyd" then you reduce the coco layer
> 7 cm considering the far lower water uptake of these more delicate
> seedlings.
> And if you sow Cyrtanthus Mackenii (I did this summer) - then only 5 cm
> is sufficient.
> The loss of sed bed hjeight is compensated by a thicker drainage layer.
> The question when the seedlings are to be transplanted can not be answered
> schematically either: This is in your decision and depends on the
> observation - "WHEN do the seedlings obviously become too crowded". If you
> have had a good germination rate and furthermore experience a rapid growth
> of vigourous seedlings you will have to transplant earlier. The minimum
> I keep these seedlings together is 5 months. The maximum timespan I let
> seedlings together was 10 months in single cases, but I do not recommend
> that. The meanwhile rich network of stronger roots from the individual
> plants is not easily separatable any more and serious damage to the basal
> plates is very probable to happen when using force.
> Hans-Werner
> >From: "Darren Sage" <darrensage100@hotmail.com>
> >Subject: Re: [pbs] Hippeastrum seeds
> >Date: Wed, 02 Nov 2005 22:56:11 +0000
> >
> >How deep are those trays illusstrated?  How long do the seedlings stay in
> >them?
> >
> > >From: "Hans-Werner Hammen" <haweha@hotmail.com>
> > >Subject: Re: [pbs] Hippeastrum seeds
> > >Date: Wed, 20 Jul 2005 17:22:18 +0000
> > >
> > >I sow into freshly recontituted coco peat substrate, and  I put every
> > >single seed, one beside another with blunt tweezers into slits formed
> >with a ruler.
> > >This is the most accurate and yes, rather rapid method.
> > >http://img.photobucket.com/albums/v215/…
> > >
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