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Re: growing Echinodorus from seeds.
- To: Aquatic-Plants at actwin_com
- Subject: Re: growing Echinodorus from seeds.
- From: Roger Miller <rgrmill at rt66_com>
- Date: Tue, 12 Mar 2002 19:35:38 -0700
- In-Reply-To: <200203110848.g2B8m3U27792 at acme_actwin.com>
- References: <200203110848.g2B8m3U27792 at acme_actwin.com>
On Monday 11 March 2002 01:48, Edward Venn wrote:
> Which brings us to the enjoyable part of this missive. I received a small
> plastic baggy filled with E cordiofolia seeds. At what temperature should
> these seeds be germinated? In what type of soil and at what depth of water
> should they been sown? I7d really like to know as daytime temperatures in
> Tokyo area are reaching 20<C. I'd like to get an early start on growing
> these plants outdoors.
I was holding off on this question because I've described my method before
and I hoped that someone else could offer some alternatives. Aside from my
experience I think the archives hold one other account of growing echinodorus
from seed. That was a few years ago by (as i recall) someone in Singapore.
What I did was prepare a bed of mixed aquarium gravel, sand and peat with a
teaspoon or so of DTPA chelated iron. I spread that in a lidded, clear
plastic carton that originally had cherries in it and kept just enough water
on it to bring the water to the top of the soil.
I sowed the seeds on that and set it in a sunlit window sill. I kept the lid
loosely closed to reduce evaporation. I didn't seal the lid otherwise the
sunlight would have cooked anything in the carton.
The seeds started germinating in about two weeks and continued for about a
month afterwords. Ultimately about 10% (guestimated) of the seeds actually
produced plants. The low germination rate was consistent with the experience
reported by the first writer.
Once the seeds germinated I started raising the water level in the carton to
keep the plants covered. I transplanted the plants to an aquarium once all
the plants had leaves at least 1-inch long. That took a couple months to
There are a few things I would do differently a second time around. First, I
would probably use a clean, wet, fertilized sand bed to germinate the seeds,
then transplant the seedlings to a CO2-enriched aquarium as soon as the
plants had more than 4 leaves. The seedlings look like tiny E. tenellus.
The first leaves are thread-like and delicate and I don't think the seedling
could be moved immediately. On the other hand I don't think I got very good
growth by leaving the seedling where they germinated for as long as I did.
Also, I would try to keep the germinating beds from getting very cool at
night. Mine got quite warm during the day, but cooled into the 60's F at
night. I might have had better early growth if the nighttime temperatures
No matter what, I don't think there's any way to keep the process from taking
a long time.