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I sowed some Nicotiniana lansdorffii [ lovely plant if you haven't tried it ] 14 days ago. Sown in a propagator, in my usual Perlite and John Innes No. 1, and nothing has germinated.

4 days ago I decided to sow some more, same packet, same compost, and today they have germinated.


Has to be guess work but I would put my money on the soil temperature when you sowed.

I keep my seedling compost bags next to a radiator indoors. Then take it out to the shed to do my sowing. Not had anything this year that wasn't up in a few days. 


I'm sure that biofreak would have an explanation.

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