In article ,
Stewart Robert Hinsley wrote:

Some seeds require light for germination, but apart from that, in a
slow-germinating batch of seeds germination is likely to spread over a
fair amount of time - so depending on when he removes the bag either
half the seeds haven't germinated yet, or the other half have produced
etiolated seedlings. A clear bag or a mini-cloche should be OK.

Indeed. Seeds either germinate "to order" when the conditions are
right, or "erratically" - corresponding to two different evolutionary
strategies. I can't think of any that delay for a long time and then
all germinate at once without an environmental trigger (i.e. behave
like cicidas do). Can you?


Regards,
Nick Maclaren.