Seedlings emerging

Jane McGary
Mon, 13 Jan 2020 16:15:10 PST
I use 3-1/2 inch (about 9 cm square) pots for many seeds, and I leave 
many of them in these pots for 2 years. However, when I get a lot of 
seeds such as from the NARGS surplus, I use pots about half that size 
and then I have to move them on after the first season. I don't see any 
difference in germination related to pot size. However, I use a mix that 
retains moisture well, and I keep them moist when in growth.

I just got back from 2 weeks in Chile, and about the third thing I did 
was check my seed pots. What fun.

I don't use any bark in my seed sowing mix, but I use ground pumice.

Jane McGary, Portland, Oregon, USA

On 1/11/2020 7:19 AM, Johannes-Ulrich Urban wrote:
> Dear All,
> It is very interesting to read about your individual experiences in raising bulbs from seed. I absolutely understand the English approach to use small or very small pots. I have used the same kind of small pots for years successfully when I lived in Germany. And there was no reason to do it differently after my move to Portugal. Until...... I lost a lot of one year old seedlings during the first Portuguese summer.
> I think one just cannot use the same growing techniques in very different climates.
> Now..... the observations of Lee and Dylan contradict my own observations. I agree that there are always some “bewitched“ seeds that just do not want to germinate...... but I have so far not observed that this is associated with pot size. But it makes me think.
> On the other hand I may be lucky to have found a very reliable compost made of composted bark. It is very stable and does not disintegrate into a suffocating sludge.
> Especially Ranunculaceae seedlings did not survive in small pots and last autumn I have for the very first time used 6l pots for sowing with good results so far. I will keep you posted.
> Bye for now
> Uli
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