Ophelia wrote:
Dave Hill wrote:
On 5 June, 19:56, "alan.holmes" wrote:
Why is it, that practically all the seeds I have sown this year have
either failed to germinate, or taken several weeks to show
themselves?

It is very annoying.

Alan

A lot of seeds are temperature sensitive, whilst most people realise
that seeds wont germinate if they are to cold, the same goes if they
are to hot, and all seeds have differeny temp. ranges.
You may well find that now it is cooling down then they may decide to
start moving.
David Hill

Much easier for me. I don't know when they are supposed to appear, so I
just wait and not worry)

Not sure what I would do if they didn't appear at all)

Keep waiting. If you have some seeds of unusual species, then don't throw
away the pots of seeds for at least 3 years. Some seeds have double
dormancy, which means they need at least 2 winters to go through before they
will germinate. Others have very persistent germination inhibitors or very
thick seed coats, which need a long time to break down. It's all to do with
nature making sure that some seeds hang around a while before germinating,
thus ensuring some survive while those that germinated quickly may perish.

--
Jeff