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Stunted and Mildly Sun-scalded Tomato Seedlings
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Author:  Kathleen-GT [ Sat Mar 01, 2014 7:57 am ]
Post subject:  Stunted and Mildly Sun-scalded Tomato Seedlings

Hi! I started a whole bunch of tomato seedlings for a school fundraiser. We potted them up, not in potting soil, but in good vegetable mix. I fertilized them right after potting them with liquid seaweed, molasses, apple cider vinegar and fish emulsion. I set them out in the sun in increasing durations over a period of a couple of weeks. The seedlings I potted for myself I potted in Fertilome potting soil. They look great, are growing rapidly, now 4-5" tall, and only have a minimal amount of sun scald on a few leaves. However, the plants in the veg mix just aren't growing well. Most of them are still 1-3" tall, the stalks look purple, many of the leaves have sun scald. Do you know if I can save them and stimulate growth in any way without having to completely re-pot them in more expensive potting soil? There are about a thousand of them give or take a couple of hundred.

Author:  northwesterner [ Sat Mar 01, 2014 9:35 am ]
Post subject:  Re: Stunted and Mildly Sun-scalded Tomato Seedlings

Please post some photos of the seedlings that aren't doing well, and also of the ones that you're growing in potting soil.

There could be a big difference between the soils, you could have overwatered or underwatered, or even overdone with the fertilizing so early on the seedlings.

Author:  sandih [ Sat Mar 01, 2014 10:49 am ]
Post subject:  Re: Stunted and Mildly Sun-scalded Tomato Seedlings

when you're hardening off plants, you should always set them in shade. Even though they are destine for full sun, the tender leaves will scald. You can pinch off some of the leaves, but I would mist the leaves with seaweed and feed them weekly with seaweed also.

Author:  Kathleen-GT [ Sat Mar 01, 2014 11:59 am ]
Post subject:  Re: Stunted and Mildly Sun-scalded Tomato Seedlings

Plants doing well in Fertilome potting soil.
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Author:  Kathleen-GT [ Sat Mar 01, 2014 12:03 pm ]
Post subject:  Re: Stunted and Mildly Sun-scalded Tomato Seedlings

Post 1 of 2: Plants struggling in vegetable garden mix. These were potted later than the ones I have doing so well. But not by more than a couple of weeks. The difference is huge. Also, notice the purplish color on these seedlings. ????
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Author:  Kathleen-GT [ Sat Mar 01, 2014 12:05 pm ]
Post subject:  Re: Stunted and Mildly Sun-scalded Tomato Seedlings

Post 2 of 2: Plants struggling in vegetable garden mix. Notice purple color on plants and scalding on leaves. Any recommendations for how to save them and have them be productive for people who purchase them at our fundraiser?
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Author:  Kathleen-GT [ Sat Mar 01, 2014 12:41 pm ]
Post subject:  Re: Stunted and Mildly Sun-scalded Tomato Seedlings

What strength seaweed solution would you recommend I mist them with?

Author:  northwesterner [ Sat Mar 01, 2014 1:04 pm ]
Post subject:  Re: Stunted and Mildly Sun-scalded Tomato Seedlings

Don't over-water and over-fertilize, you'll just rot the roots. Let them dry out a little. Use just water, and occasionally add a little Garrett juice if you want to add something when you do water.

Author:  sandih [ Sat Mar 08, 2014 9:15 am ]
Post subject:  Re: Stunted and Mildly Sun-scalded Tomato Seedlings

I would use half strength seaweed solution.

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