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First and foremost, thanks to everyone for the expertise and experience shared on this forum . My precious tomato seedlings have an issue, and I'd like some advice. Based on searches and reading previous threads, I believe the issue is related to over-watering. If you would, please confirm so that I take the appropriate corrective action (images to follow). These seedlings were planted between 3/16 and 3/25. They spent the first 4 weeks of life growing in a window sill. It became apparent due to legginess, and online research, that a grow light system would be required for these lil guys to reach their full potential. This past Monday my EnviroGro T5 2'/2 bulb unit was delivered and promptly installed. All my seedlings (6 individual plants in 4" pots) were top fed watered until it ran out the bottom. Too much water I think; will bottom-feed from here on out. They have not been fed fertilizer yet. Light schedule is 18 hours on, 6 off. I've kept the lights within an inch of the tallest plant. Yesterday, I came home from work and found one of the seedlings had actually grown to touch one of the bulbs. At that time, I noticed 2 plants had a leaf each that was starting to brown at the tip. First thought was I cooked the leaves, but this evening, I noticed a similar brown blemish showed up on a couple lower seed leaves on other plants. Is this a sign of the growing medium being too moist? Thanks in advance. Cheers to the weekend! |
This post was edited by jimithing81 on Fri, Apr 18, 14 at 21:58
Follow-Up Postings:
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- Posted by jimithing81 (My Page) on Fri, Apr 18, 14 at 21:59
| Another pic of the dried, brown stuff. |
This post was edited by jimithing81 on Fri, Apr 18, 14 at 22:00
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- Posted by naturemitch 3/4 WI (My Page) on Fri, Apr 18, 14 at 23:57
| To me looks like the lights might have burned it. That isn't overwatering damage. I wouldn't worry too much about what is happening on the seed leaves, they're gonna start looking rougher and rougher as time goes on. I think your plants look pretty good, personally. Get them some nutrients and back off on the watering. I always top water. Top watering in itself is not gonna cause your plants to have too much water, you are :) You can overwater by bottom watering too. |
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- Posted by jimithing81 none (My Page) on Sat, Apr 19, 14 at 20:15
| Thanks for the reply naturemitch! The browning on the tips hasn't spread, which is promising. I think you're right; it's just some minor scarring from coming in contact with the bulbs. I picked up some Dr. Earth Organic Home Grown liquid fertilizer (4-6-2) at Sky Nursery here in Seattle. I'll apply a half dose today to give them a shot of nutrients. I also plan to adjust my watering schedule, basically finger test that the mix is dry a half inch or so down before watering again. Will post an update with pictures in a few days. |
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| I agree with naturemitch. It's most likely a bit of burn from getting too close to the light. Happens to my plants from time to as well when I forget to raise up the lights. Curious if you have a noticed a change with your new watering schedule. Overwatering is definitely a common problem. But your plants look really good. So, I don't think you have done any major damage here. |
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