Seeds forum: Seeding under lights for Plant share in one month? Help?

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Name: Caroline Scott
Calgary (Zone 4a)
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CarolineScott
Apr 12, 2012 6:12 AM CST
I had not planned on a plant share on May 12 in our community.
Now i would like to start a tray or two for them.
What is fast growing under lights?
I am thinking towards veges, herbs or flowers okay too.
Name: Karen
Cincinnati, Oh (Zone 6a)
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kqcrna
Apr 12, 2012 6:35 AM CST

Moderator

Gee, Caroline, that's a tough question. Lots of things will germinate but most I can think of would still be tiny.

I grew some Mammoth Sunflowers for a friend this year. I wintersowed them, but they sprouted and grew fast. I WSowed them March 10, and gave them to my friend yesterday. They were 6-8" tall. All least they looked like big plants.

Most perennials from seed seem to stay small for so long. I can't even think of any other annuals that won't still be pretty tiny in 4 weeks time. Basil grows pretty fast. Maybe big tall zinnias or marigolds? or cosmos? If you pick big tall varieties they at least show growth fast. I imagine you want to share something bigger than 1/2" tall. Smiling

Karen
Name: Sandy B.
Ford River, Michigan UP (Zone 4b)
(Zone 4b-maybe 5a)
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Weedwhacker
Apr 12, 2012 7:48 AM CST
Tomatoes should be a respectable size in 4 weeks. Cucumbers, squash, zucchini, pumpkins (or mini pumpkins) would definitely be ready. Beans. Lettuce. Swiss chard (I love the "Bright Lights" variety). And I agree with Karen about the zinnias, marigolds and basil -- they germinate fast and would be a nice size in a month. Maybe nasturtiums, too. That should give you enough to keep busy! Smiling
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Name: Caroline Scott
Calgary (Zone 4a)
Charter ATP Member Region: Canadian Bulbs Winter Sowing Enjoys or suffers cold winters Lilies
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CarolineScott
Apr 12, 2012 2:56 PM CST
I was wondering if tomatoes would be good or not.
Maybe I could do "salad in a six pack".
Some lettuce, some herb and perhaps a tomatoe.
How about onions? Maybe I could use multiplier onions?

This is about long term gardeners encouraging new gardeners.
Some just have a small plot in the Community Garden.

Hurray! Hurray! Hurray!
We have a good solid rain today.
I ran around and sowed wildflower seeds last night.
Name: Rick Corey
Everett WA 98204 (Zone 8a)
Sunset Zone 5. Koppen Csb. Eco 2f
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RickCorey
Apr 16, 2012 7:00 PM CST
Bok Choy jumps right up. I'm thinking around 3 weeks if the soil is warm ... but then they'll want light and cool air.

It could be part of salad-in-a-six-pack. Plant four seeds in a cell, and remind them to eat three of them as salad thinnings before they plant the biggest one.
Name: Allison
NJ (Zone 6a)
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Onewish1
Apr 17, 2012 4:26 AM CST

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4 o'clock seeds get huge quick
Name: Caroline Scott
Calgary (Zone 4a)
Charter ATP Member Region: Canadian Bulbs Winter Sowing Enjoys or suffers cold winters Lilies
Peonies Plant Lover: Loves 'em all! Garden Ideas: Master Level
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CarolineScott
Apr 17, 2012 10:07 AM CST
I did find a packet of baby Bok Choi, and it says 35 days to maturity so, yes, that is an option.
I did not know Four O'clocks would grow fast---that is another option too.
Thanks for your ideas.
I have some cold hardier bush tomatoe seeds under lights.
I also bought some multiplier onion sets.
The plants won't be hardened off,but new gardeners need to learn about that so I will include that on the labels.
And I found packets of lettuce seed which is a blend of several differently coloured lettuce.
I am thinking that I will sprout the seeds under lights,
and then make up the six packs with different coloured lettuce, and the other salad ingredients.

My problem is that my light space is already crowded with my own starts. So will be juggling trays around to windows.
Name: Mike Stewart
Lower Hudson Valley, NY (Zone 6b)
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Mike
Apr 17, 2012 6:17 PM CST
Sunflowers and zinnias are fast growing under my lights.
Name: Sandy B.
Ford River, Michigan UP (Zone 4b)
(Zone 4b-maybe 5a)
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Weedwhacker
Apr 17, 2012 7:17 PM CST
Allison, how long should 4 o'clocks take to germinate?
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Name: Allison
NJ (Zone 6a)
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Onewish1
Apr 17, 2012 7:32 PM CST

Moderator

let me go check my DG journal.. brb
Name: Allison
NJ (Zone 6a)
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Onewish1
Apr 17, 2012 7:41 PM CST

Moderator

I have entered sowed limelight rose, broken colors, red glow - 2/27/08 -- germinated 3/4/08.. of course that wasn't every single seed.. but majority of them.. I usually mark it when I see enough popping up to take the cover off the flat

every other year I WS'ed them
Name: Caroline Scott
Calgary (Zone 4a)
Charter ATP Member Region: Canadian Bulbs Winter Sowing Enjoys or suffers cold winters Lilies
Peonies Plant Lover: Loves 'em all! Garden Ideas: Master Level
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CarolineScott
Apr 18, 2012 5:25 AM CST
So about one month.
I think I have some zinnia and sunflower seeds.
I'll start them all in vermiculite, under warmth and lights
and see what happens.
Name: Karen
Cincinnati, Oh (Zone 6a)
Forum moderator I was one of the first 300 contributors to the plant database! Cut Flowers Winter Sowing Charter ATP Member Seed Starter
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kqcrna
Apr 18, 2012 6:01 AM CST

Moderator

Those things all grow fast if wintersown in warm weather, but if weather is cold, they can be a lot slower.

Karen
Name: Caroline Scott
Calgary (Zone 4a)
Charter ATP Member Region: Canadian Bulbs Winter Sowing Enjoys or suffers cold winters Lilies
Peonies Plant Lover: Loves 'em all! Garden Ideas: Master Level
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CarolineScott
Apr 18, 2012 6:04 AM CST
Had I known ahead of time---then I would have winter sowed some of these.
This year I did mostly perennials as winter sows. I will use them for plant shares held later in our growing season.
Name: Karen
Cincinnati, Oh (Zone 6a)
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kqcrna
Apr 18, 2012 6:16 AM CST

Moderator

I'm not sure how annuals needing warmth would do in your zone, Caroline, since I'm so far south of you! But then you are way ahead of me in terms of daylight available, so maybe... I've never gardened anywhere but here, so it's hard to guess.

Karen
Name: Sandy B.
Ford River, Michigan UP (Zone 4b)
(Zone 4b-maybe 5a)
Charter ATP Member Celebrating Gardening: 2015 I was one of the first 300 contributors to the plant database! I helped beta test the first seed swap Region: United States of America Region: Michigan
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Weedwhacker
Apr 18, 2012 7:20 AM CST
Thanks, Allison - I WS'd some 4 o'clocks as well as putting some under lights inside and so far (a couple of weeks now for the insiders) nothing is showing -- I think my seed was a couple of years old, so maybe I'll pick some new seeds up and give them a try!
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Name: Allison
NJ (Zone 6a)
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Onewish1
Apr 18, 2012 7:24 AM CST

Moderator

think soaking them is the key for sure.. peroxide helps the soak time.. I usually only do them for a 1/2 a day.. rather than overnight .. had some crack open in the soak sometimes.. just plant carefully..

unless WS'ed ... the elements usually break them down enough
Name: Sandy B.
Ford River, Michigan UP (Zone 4b)
(Zone 4b-maybe 5a)
Charter ATP Member Celebrating Gardening: 2015 I was one of the first 300 contributors to the plant database! I helped beta test the first seed swap Region: United States of America Region: Michigan
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Weedwhacker
Apr 18, 2012 1:56 PM CST
I did soak my 4 o'clock seeds that I planted indoors in water, but will try the peroxide the next time... who knows, maybe the WS'd plants will still come up, it's still pretty early here.
"Blessed is he who has learned to laugh at himself, for he shall never cease to be entertained."
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Name: woofie
NE WA (Zone 5a)
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woofie
Apr 21, 2012 2:51 PM CST
I've given up on the yellow 4 o'clock seeds I started earlier, so I'm going to soak a few more, adding peroxide. How much peroxide would you add to just a little medicine cup (about the size of a shot glass)?
Confidence is that feeling you have right before you do something really stupid.
Name: Karen
Cincinnati, Oh (Zone 6a)
Forum moderator I was one of the first 300 contributors to the plant database! Cut Flowers Winter Sowing Charter ATP Member Seed Starter
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kqcrna
Apr 22, 2012 4:24 AM CST

Moderator

I'll let someone else address that, since I don't claim to know. I've read some dubious stuff about peroxide, claims that it can do everything from sprouting seeds to curing cancer, so I think it's hard to know what is reliable information and what is just goofy stuff. Understand, I believe that peroxide might help seeds sprout, just not sure how much to use, how long to soak because the claims vary so much and some reports are so outrageous.

Woofie, did you file or nick the seeds at all? Doing that before soaking can make them swell much faster.

Sandy, when wintersowing big seeds like 4 o'clocks, if sown in winter they can rot after being in cold wet soil for months. It's not a problem with small seeds, just those really big ones. Sometimes those do better if sown in spring when temps are warmer. I had that happen- those sown in winter rotted, that same batch of seeds sown in spring did great.

Karen

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