Return to the Allium Forum | Post a Follow-Up

 o
Onion Tops Turning Yellow

Posted by john11840 z6/CT (My Page) on
Tue, May 2, 06 at 15:52

After several years of having mixed results with onion sets, I decided to try plants this year. I think I followed the directions - 4" deep trench, 10-20-10 fertilizer in bottom, 2" of soil, then the plants. They did great for about 2 weeks. We've had a dry spell recently, so I've been watering them with a soaker hose about every other day. Now they are looking sick. The tops are turning yellow. Is this normal? Did I do something wrong? Can they still be saved? Any good advice would be appreciated.
John


Follow-Up Postings:

 o
RE: Onion Tops Turning Yellow

Yellowing tops aren't normal for onions at this time of year. Depending on how long the soaker is going, every other day sounds like a bit too much water for the onions at this time unless your soil drains very quickly. It could also be fertilizer burn on the roots as they grow but I'd guess water first.

I'm in about the same zone as you (and definitely dry) and I'm watering once a week for 5-10 minutes with a hoze end wand. I planted plants around 4/10 and it took the first couple of weeks for them to grow roots and now they are greening and starting to produce the first new growth. Try not watering until Friday at least and see if they start to recover.


 o
RE: Onion Tops Turning Yellow

Thanks Makalu. The last 2 days of rain probably didn't help the over-watering situation. Hopefully, it will dry out this weekend. Should I start the high nitrogen fertilizer soon?
John


 o
RE: Onion Tops Turning Yellow

If your soil is well amended in addition to the fertilizer that you applied at planting time, you may not need the high nitrogen stuff. If you're going to apply it, any time from now until the middle of June is good for our area ... much past that and I've found that the onions don't seem to size up as much and don't keep as well.


 o
RE: Onion Tops Turning Yellow

Thanks for the good advise, Makalu. It looks like my onions have turned the corner and are starting to green up and grow.
John


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Allium Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here