Radish seedlings stems yellowing (leaves still green)
Ang C
8 years ago
last modified: 8 years ago
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Ang C
8 years agoRelated Discussions
Yellowing leaves on Petunia Seedlings
Comments (5)I had problems with the water I was using, I now only start plants with distilled water... tap water has chlorine that can build up in the potting mix. Too much water can tie up the root's ability to assimilate nitrogen (the micro amounts of which are already in the potting mix), and you said that your older plants have no issues, yes? I'd say first evaluate the water you are using, and if you are using tap water that you'd call "hard water" then the PH of it could be too high as well as laced with chlorine. It's a minor detail, but you can buy pH lowering drops from any local garden center, and adjust your distilled water to something around 6, and see if that doesn't clear it up. Small plants just can't use much fertilizer at this stage in their life....See MoreTop leaves of seedlings turning yellow
Comments (3)Over watering can definitely cause yellowing. While still in the cups let the soil dry out before watering. The legginess is probably because they need more light than they are getting in the window. And, they're probably large enough that they could use a gentle, light fertilizing, if you haven't done so already. Once you get them in the ground they will not be so prissy and demanding. I know that you are putting them outside when the weather is nice. That's good, but start them out in the shade for short periods of time (like 15 minutes), and very gradually expose them to sunlight for very short periods of time until they get used to it. Otherwise, the leaves may get sunburned and bleached out. Ask me how I know. :-)...See MoreYellowing tomato seedling leaves__:)(
Comments (20)Okay, glad you posted the pictures Click for Pics because that IS NOT Nitrogen deficiency. The yellowing shown in your pictures is intervenal chlorosis, yellowing beginning at the leaf margins and progressing towards midribs - leaving a lacy yellow pattern between the remaining green ribs, and is the result of micronutrient deficiency. Maybe iron, maybe magnesium. Those would be my first two guesses as they are the first to show up because soilless growing media do not contain them in sufficient quantity for plant health. Either way, use the Ironite or Ferti-Lome liquid iron suppliment. Both have complete micronutrients. Until you purchase one or the other, give your plants a dose of Epsom salts, one tablespoon per gallon. Yes, one full tablespoon per gallon as some of your plants are getting to an advanced stage of chlorosis. Epsom salts = magnesium sulfate. I think it will help. Cannot possibly hurt. You may already have sufficient nitrogen, phosphorus and potasium (NPK) in the soilless potting mix because you already dosed it with Miracle Gro ... evidenced by some of the other seedlings being plenty green, okay? It's just sitting there available to the yellowing plants but they need a vitamin pill to assist their ability to take up the NPK. Think of it that way. All plants are not created equal. It will take a day or three for the little ones to green back up. But they will. Well except for the leaves where they've gotting tan, brown and crusty. Those are gone. You can trim off the crispy parts. But the leaves that are yellow and green lacy pattern, those will green back up....See Moreseedling lower leaves turning yellow
Comments (10)Yellowing of the bottom leaves - be they cotyledons or true leaves - is almost always a sign of excess watering. Too wet soil causes root rot. Given your container mix - "store bought top soil with homemade compost (leaves and grass)" - too much water/too wet soil would seem very likely. Potting soil also compacts making good drainage problematic. This the standard recommendation to use a soil-less potting mix instead. Have you fed them anything else? Compost unless it was well finished humus won't provide much in the way of nutrients. Dave...See MoreAng C
8 years agonancyjane_gardener
8 years agoAng C
8 years agoAng C
8 years ago
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Ang COriginal Author