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Old 04-05-2007, 09:24 PM
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Default Sweetcorn Germination

Hi

I planted about 20 sweetcorn seeds in cell trays in the green house approx 3 weeks ago and only 3 have germinated!

I followed the directions on the pack! Has anyone got any ideas what could have gone wrong, or am I just being impatient and should wait a bit longer??
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Old 04-05-2007, 09:47 PM
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Hmmm sounds like you've got some dud seeds.

I planted about 30 seeds on Monday and already most of them have germinated - they're in an unheated proporgater on a sunny windowsill.
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Old 04-05-2007, 09:47 PM
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I planted 8 on sunday and one is showing its head already
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Old 04-05-2007, 09:59 PM
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I have also experienced poor germination when I have done everything right as far as I know? I am going to try again with some more but try to sprout themon kitchen paper first.
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Old 04-05-2007, 10:09 PM
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Can only say you may have dud seed or you are planting too deep. I have 14 out of 16 blue sweetcorn, 12 out of 16 swift f1. Planted bloody baron and minipop on Wednesday but none up just yet
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Old 04-05-2007, 10:10 PM
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I used to do mine like that with not brilliant results, then last year someone told me to put the seeds on damp kitchen towel somewhere warm; propagator, airing cupboard or warm windowsill. It's great, you get a much higher rate of germination and once they're sporting roots and shoots you just pot up. I tend to do this in batches and put the rest back for next time. I'm looking forward to a bunper crop this year. Actually I'm running out of room where to put them all till planting out time!
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Old 04-05-2007, 11:25 PM
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Mine germinated within a week in an unheated greenhouse. I would plant some more.
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Old 05-05-2007, 12:05 AM
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I have found that they can be very sensetive to drying out so do keep them moist. Other than that, it should be pretty sure thing.
Darren
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Old 05-05-2007, 12:06 PM
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I worry about damaging the shoots by potting up after they,ve germinated so I'm going to try laying the seeds on top of damp compost in pots then when they germinate just add compost without disturbing the seed.
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Old 05-05-2007, 02:33 PM
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I've had 15/16 germinate (going to sow more soon) and it took about a week. I grew corn last year too without bother. I sow mine about 1" deep in toilet roll inner tubes - not particularly for the root system (though it surely can't hurt) but because it's environmentally friendly and I'd saved them up for months and had plenty! Mine have also been kept moist.
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Old 05-05-2007, 10:04 PM
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Almost all mine came through within a week, but as I do with most large seeds, I soaked them overnight first. In your position I'd try again with fresh seed.
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Old 05-05-2007, 10:12 PM
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Last year's were almost 100% germination, but this year's are not so good. Minipop about 50% germination, and Swift was pathetic. I've been out today and bought more seed - will let you know how they get on.
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Old 05-05-2007, 11:48 PM
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Hi

I planted my sweetcorn and they did nothing, so I looked at the seeds still in the packet and most of them were hollow.

Tigerella
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Old 06-05-2007, 09:22 PM
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Well they sort of are, aren't they? They always remind me of pulled teeth (yuk!). When you soak them they kind of puff up and fill out a bit. I don't think the hollow look implies the seed is duff.
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Old 06-05-2007, 09:29 PM
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I sow mine in loo rolls,after soaking for 24hrs.100% germination in 4 days.Only problem is this time for some reason some have started to die off!I suspect grandsons poking fingers,as I let him sow them,and everytime he's been round he keeps fiddling with them.I'll have to replace them without him knowing!
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Old 06-05-2007, 09:30 PM
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Don't nomally grow it as I can't stand the stuff but OH loves it and I fancied trying the Three Sisters thing this year so am giving them a go. Planted them in root trainers in an unheated greenhouse a couple of weeks ago and have had about 80% germination. They're looking pretty healthy so far and shooting up. Think the first one came up within about 5 days.

Didn't do any of that pre-soaking bit as I'm too lazy and nowhere near organised enough.
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Last edited by Alison; 06-05-2007 at 09:31 PM.
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Old 08-05-2007, 12:46 PM
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Thanks for all the advice guys - will put some more in asap and let you know how i get on!
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Old 08-05-2007, 01:52 PM
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Quote:
Originally Posted by lyndap View Post
I sow mine in loo rolls,after soaking for 24hrs.100% germination in 4 days.Only problem is this time for some reason some have started to die off!!
I found the same prob with loo rolls I think they go mouldy and were not draining well. I prefer 3" pots but am only getting about 60% germination this year- Consistantly over three packets of seed in four batches. I am double careful about correct moisture in compost. I have moaned to Dobies and I am hoping on another packet from them.
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Old 08-05-2007, 05:59 PM
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I've had all but 2 of my 24 seeds germinate this year. I'm convinced soaking them the night before is a great help.
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  #20 (permalink)  
Old 08-05-2007, 08:30 PM
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My sweetcorn seeds looked pretty awful and I didn't expect anything from them but 18 out of 20 seeds germinated in just 4 days so I am very pleased.
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Old 08-05-2007, 09:18 PM
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i soaked mine over night planted in 3" news paper pots on the 26th of april perfick according to luna and got astounding results 94% success. The same with my butternut keept nicely moist in unheated greenhouse.
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Old 15-05-2007, 12:27 AM
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Quote:
Originally Posted by Paulottie View Post
I found the same prob with loo rolls I think they go mouldy and were not draining well. I prefer 3" pots but am only getting about 60% germination this year- Consistantly over three packets of seed in four batches. I am double careful about correct moisture in compost. I have moaned to Dobies and I am hoping on another packet from them.
I have furry & spotty mould on the outside of the Toilet rolls I have the sweetcorn in. I've got about 20 plants up to 2" tall at the moment.

Is this a potential disaster as I was planning on putting them in the ground in around 3-4 weeks???

Any experience or suggestions welcome.
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Old 15-05-2007, 01:17 AM
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Welcome to the vine King Carrot

It wasn't so much the mould that bothered me but the leaves turning yellow. they stopped growing...that said it was first batch of the season probably a bit cool and i must have overwatered them, I planted them out but they don't look good. I've tried before and not had great results plus i've got enough 3" pots these days. Hope yours work out.

Dobies just sent me another triple pack free bless 'em. But with sweetcorn, onions and asparagus we never can grow enough...courgettes and lettuce I always overdo... tried lettuce soup one year! horrid.
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Old 15-05-2007, 01:46 AM
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some of our sweetcorn did not apear to have come up but when i tiped them out they had rooted ? so must have planted some depper than others
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Old 15-05-2007, 02:17 AM
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