coriander from seed

[penny]

Hi all,
I planted a module tray of coriander seed and one of flat parsley more than 3 weeks ago. I had them in a mini covered greenhouse inside my unheated greenhouse which has worked really well for other things. I covered them in thin piece of black plastic to keep them dark. but not a sausage (or a seedling) so far.
Any ideas where I am going wrong?
I have brought them home now and put on the radiator - thought I'd try basal heat!
Penny

[alan refail]

Penny

As we optimistic Welsh like to say "Mi ddown nhw" - They'll come. 3 weeks is a longish time for both coriander and parsley, but they do like about 60F to germinate. Don't get them too hot. If all fails, sow again on heat.

Alan

[Tigger]

No sign from my coriander seeds either. After 4 weeks.

[GIULIA]

Why are you doing this? Sow coriander outdoors at the end of May and it will burgeon all over the place no problem.
Pity it runs to seed so fast though, so just sow a bit at a time.

[ssimtee]

Can't think what you could be doing wrong, because i find coriander seeds the easiest to grow. I'm on my second sowing this year. Just fill a pot with compost, sprinkle in some seeds, cover with a THIN layer of compost, water and that's it. I just put the pot into a plastic bag and then it goes on the windowsill. It always comes up quicker than the flat leaf parsley does. Oh, and the curly parsley takes ages for me to sprout.
Hope this helps.

[penny]

thanks to all. I think I will resow. I need coriander in quantity all the time!! Regards Penny

[Granny]

I've had problems too this year. Normally they're up in a few days but I've sown 2 lots now with nothing from either. First lot late March, then April. 1 lot from a packet and 1 lot I saved from last year. Maybe they were too cold, then too hot!
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Granny

[Tigger]

I can't grow sweet peas either, so maybe there's some weird connection?

[oxalis]

I can't grow sweet peas either, so maybe there's some weird connection?

Hello everyone, fairly new to all of this. I wonder whether any pre treatment is taking place (scarification)sweet peas benifit from chipping with a knife or sandpaper seed coat helps germination. Parsley seed can be soaked and rinsed a couple of times to flush an inhibitor from the seed coat(furanocoumins) should speed things up.As for coriander much hardier than people give it credit coming up everywhere where it self seeded last year!, mind you Im in Cornwall!All best.
Oxalis

[ssimtee]

I don't do anything to mine. Even the sweetpeas didn't get soaked overnight (forgot)this year,so i just pushed them down into the compost, soaked it thoroughly for a couple of days and put it into the propagator. Usually put them on the windowsill, but since it was on and there was space in it, i just dumped them in there. They were out within a couple of days. Only plant them as companion plants for my beans, so i don't pay that much attention to them to be honest. If they come up, all good, if they don't, i'm not too worried. Plenty of other flowers in the garden to pollinate things.