6,340 Garden Web Discussions | Growing from Seed

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digdirt2(6b-7a No.Cent. AR HZ8 Sun-35)

Zinnas grow so rapidly that starting them indoors isn't generally recommended. They work best when direct seeded as many don't survive transplanting them.

But if you want to do them indoors then wait until approx. 2 weeks before the time they can go outside to start them as they will be ready to transplant within that time.

If you read through all the FAQs here on how to grow from seed - they apply to most everything including zinnas - you'll find answers to most any basic question including lights and how to use them. The effect on your electrical bill from fluorescent shop lights is minimal unless you set up a big operation of multiple fixtures.

Dave

Here is a link that might be useful: Growing from seed FAQs

    Bookmark     April 15, 2014 at 3:41PM
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blushing_susie(5)

Hi Beethie,

I haven't begun my zinnia seeds yet, but if I do start them indoors it will be two or three weeks before I would put them outdoors since they grow fast. I will probably just direct sow them in a few weeks.
I have been growing tomatoes, peppers, impatiens, canterbury bells, various herbs, and morning glory vines. I started the slowest growing plants at the beginning of March. I have four shoplights set up.
As for my electric bill, I don't recall what it was last month. I don't think there was a big increase or I would have remembered.

    Bookmark     April 15, 2014 at 5:15PM
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digdirt2(6b-7a No.Cent. AR HZ8 Sun-35)

Cause is over-watering. Your soil looks very wet in the photo and you should never leave any plants constantly sitting in water. Bottom watering means let them sit until the soil surface appears wet then remove the from the water or dump out any left over.

Dave

    Bookmark     April 15, 2014 at 3:34PM
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digdirt2(6b-7a No.Cent. AR HZ8 Sun-35)

You don't have to start over from scratch but they will need some gradual re-adjusting after days indoors. right back to 8 hours would be a big change.

Yeah, planting seeds when the weather is like this is one things - plants something else. :)

Dave

    Bookmark     April 14, 2014 at 5:20PM
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bananastand

Thanks, Dave. I'll watch the forecast and hope it looks up. Tomorrow's high is supposed to be in the 30's again, so I fear these plants will not be outside again for a few days at least. Ahhhh spring. :-)

    Bookmark     April 14, 2014 at 6:27PM
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ZachS. z5 Littleton, CO

I wouldn't cover them, if you don't have anything germinating yet. The cold temp's will delay your germination, and you may loose a few seeds and have to re-sow them to fill in the spots. Lettuce and radish I really wouldn't worry about, they germinate and grow so fast that even if you lost all of your seeds, you probably wont loose anything by way of time if you re-sow them when conditions are better. Peas, eh, they usually pop up pretty quick for me, too, as long as I give them a presoaking so I'd say the same goes for them.

As for peppers, well, If you were counting on your direct sown peppers, I'd go ahead and scrap that plan. Peppers are almost always started indoors. They like very warm soil to germinate, and once they do they don't tolerate cold. I think your best bet for peppers this year is, at this point, buying some started plants at a garden center once the weather warms up consistently. You can start seeds indoors still I guess, but, it's cutting it kind of close and I'm not sure you'd see the production from them that you'd like.

    Bookmark     April 13, 2014 at 10:23PM
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digdirt2(6b-7a No.Cent. AR HZ8 Sun-35)

As with most seedlings that are at the cotyledon stage, it is over-watering that usually stalls growth. They are living off the seed coat still in the soil and when it is too wet the roots stunt and growth stops.

If you are comfortable working with them at this stage then you can transplant them into fresh growing mix (bury all that leggy stem) and it will usually kick-start a new growth spurt.

If you want to wait until they get true leaves, fine, but as they are slow growers anyway it will be awhile. Meantime, less water, more light, cool air temps.

Dave

    Bookmark     April 12, 2014 at 5:28PM
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evilingarnett

Thanks. I noticed that the soil seemed kind of damp. I will water a lot less. I am scared to transplant them, but I am going to give them more light. I may be letting my own impatience work against me.

    Bookmark     April 13, 2014 at 6:48PM
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mandolls(4)

I would suggest adding some coarser materials to the mix when you pot them up. If that mix is actually just vermiculite, spagnum moss and peat moss, it is really going to hold water. I have had even larger coleus rot at the soil line if kept to wet. Mix in some pearlite, or pine bark fines for better drainage.

    Bookmark     April 12, 2014 at 8:34AM
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neuf(5 Indy)

Thanks for the comment mandolls. I just bought a bag of pine bark mulch per tapla's suggested 5-1-1 mixture. I am afraid my soil is too damp and I am hoping I can make it through to the transplant into cells without rotted roots or damp off!

    Bookmark     April 13, 2014 at 1:09PM
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naturemitch(3/4 WI)

I hate peat containers of any sort. Either too wet or too dry. Your plants just need to be transplanted out of those containers and they should take off. Get them into smaller containers. Here are what mine looked like when we transplanted them into individual containers (20 oz. cups). . The plants were 4 weeks old at transplant. We leave them in the community container until they are big enough to go into the 20 oz. cups.

Good luck!

Here is a link that might be useful: transplanting peppers

This post was edited by naturemitch on Sat, Apr 12, 14 at 0:38

    Bookmark     April 12, 2014 at 12:37AM
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Campanula UK Z8

I agree - no need to start over (and it is getting very late now) - just a transplant into a better mix and NOT those peat pot abominations.

    Bookmark     April 12, 2014 at 5:46PM
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digdirt2(6b-7a No.Cent. AR HZ8 Sun-35)

It can be risky since you will be so dependent on the weather. Possible, but more risky.

You can cut the problems by not doing it with squash or cucumbers as both do so much better when direct seeded at the proper planting times. Few grow them as transplants.

Tomatoes and peppers (especially) require very warm soil temps to germinate so will you be using heat mats? If not then your germination rate may be reduced and will definitely be slower. Peppers need 75-80 degree soil temps until they germinate. Tomatoes 65-70 degrees.

I never recommend peat pots or pellets for germinating seeds. Both are very problematic. Plastic with a good seed starting mix is 10x more successful.

You might want to explore over on the Wintersowing forum here for their tips on outside seed germination. Watering should always be done from the bottom. Be sure to check out all the FAQs on this forum - the blue button - as they cover all the basics.

Dave

    Bookmark     March 9, 2014 at 7:54PM
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fellenf

Thank-you (and I'll take that one peat pot tray back to Walmart!). I did mean for seeds that would be ready to go in the ground in springtime, I thought it might be a more cost effective way, since one packet of organic seeds costs less than $3 -- the price of probably one seedling that I would buy at the nursery or store. I have always planted that way, and it gets too expensive!

    Bookmark     April 12, 2014 at 10:04AM
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mikearonie

From what i know, which isn't much, there shouldn't be any problem. Last season i throw a couple of tomato, corn, and sun flower seeds and they were fine even though the temp. dropped to the 40's.

    Bookmark     April 11, 2014 at 7:40PM
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mandolls(4)

If you are talking about bringing them in - they must be in pots? Which makes it easy unless you have hundreds. Dipping down to 45 isn't a problem, two full days at 45 may make them unhappy. The peppers and the beans are the only ones I would worry about, they definitely like warm weather.

When I get to the point that my seedlings are out on the porch hardening off, if it is going to get below 45, I bring them in.

    Bookmark     April 12, 2014 at 8:42AM
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715rose

The best thing I've found for watering seedlings is a turkey baster. It has worked for me for many years.I don't think I'd stick anything down in the roots.
Rose

    Bookmark     April 10, 2014 at 8:51PM
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evilingarnett

715 Rose do you just squeeze water near but not on seedlings or do you actually put the baster in the dirt

    Bookmark     April 12, 2014 at 8:32AM
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gardenlover25

I have searched from Google and here are the information I found out. A brief description about zinnia and the seed germination.

Zinnia (Zinnia elegans)

Zinnia is a genus of 20 species of annual and perennial plants of family Asteraceae, originally from scrub and dry grassland in an area stretching from the American Southwest to South America, but primarily Mexico, and notable for their solitary long-stemmed flowers that come in a variety of bright colors.

70 Germination
Temperature
(Fahrenheit)

D Lighting

5-7 Days to
Germination

5 Weeks Sowing
to Planting

    Bookmark     June 13, 2009 at 7:01AM
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evilingarnett

eek...Zinnias are usually so easy. but mine just died big time. One site says indoor seedlings only want an inch a week.

Q: Now I hear they like lots of water? Or 1 inch a week?

Can I start new seedlings? ( I can't sow outside due to community garden rules)

Do those no-transplant bioDeg. pots get soggy?

    Bookmark     April 12, 2014 at 8:20AM
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digdirt2(6b-7a No.Cent. AR HZ8 Sun-35)

They clump and grow well together. I normally transplant them in clumps of 3-4 (mostly 4) into 4" pots and then group pots of 3-4 together in the garden.

Singles will grow ok but just don't look right to me - too lonesome and spindly looking alone. I want to see more blooms than green growth. So it is just an appearance issue.

Dave

    Bookmark     April 11, 2014 at 5:53PM
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garystpaul(4)

Thank you, Dave. Just the kind of information I was hoping for.

Gary

    Bookmark     April 11, 2014 at 6:19PM
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digdirt2(6b-7a No.Cent. AR HZ8 Sun-35)

Uncover, remove it and leave it off. Not even required for germination but potentially harmful after germination.

Dave

    Bookmark     April 10, 2014 at 9:11PM
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morz8(Washington Coast Z8b)

'over-water the seedlings just to deliver poison to the gnats'

Most of what you see with the dunks, bits, or even granulated form of BTi is 'inert ingredient' used as a carrying agent that then releases the BTi into water. It's not a poison, its a naturally occurring bacterium that is harmless to us, birds, fish, our pets, but stops the development of only mosquito and gnat larvae when they ingest it.

If you had some of the water/liquid prepared and your soil is already moist, pour in just enough to introduce some of the released bacteria to the potting medium, you don't have to drench. Then next time you water, go ahead and give the pots your usual amount of water and do that with the treated water each time until they are really gone. The adults aren't causing any damage and only live a matter of days so you don't really have to exhaust yourself chasing those. You don't want the larvae to mature to more adults so are treating the soil. Also, you seem to have a full blown case of gnats now, one overwatering if you were to do that isn't going to make it worse ;)

Dave, with as much as you grow, I thought you knew the difference in the BT and just had a case of fingers on keyboard getting ahead of you ;)

    Bookmark     April 10, 2014 at 4:08PM
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digdirt2(6b-7a No.Cent. AR HZ8 Sun-35)

Dave, with as much as you grow, I thought you knew the difference in the BT and just had a case of fingers on keyboard getting ahead of you ;)

Its all the dirt under my fingernails this time of year!! Falls into the cracks in between the keys. *grins*

Dave

    Bookmark     April 10, 2014 at 5:05PM
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digdirt2(6b-7a No.Cent. AR HZ8 Sun-35)

See the other current discussion here. Id that doesn't answer all your questions the search will pull up many more discussions about them.

Dave

Here is a link that might be useful: Fungus gnats

    Bookmark     April 10, 2014 at 2:00PM
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