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Bright Lights Cosmos

Hi there, 

A few years ago, I had wonderful luck with bright lights cosmos planted against my garage wall. I scattered some seeds and they flourished all summer long. They got very tall and the bees loved them and visited them daily. Since that time, however, I have scattered seed, transplanted them from seeds I sowed indoors and transplanted mature plants I got at the garden store and hardened off. They will not grow! They always die from the bottom up, with the bottom leaves dying first and the whole plant being dead in a matter of days. I have a lot of earwigs in the area where I'm planting them. Could they be causing this? What might be going on?


  • Ladybird4Ladybird4 Posts: 36,196

    It could very well be the earwigs alanalee but how very mysterious!

    Cacoethes: An irresistible urge to do something inadvisable
  • alanaleealanalee Posts: 3

    Oh, and P.S., I have tried several other things in the area (iris, day lilies, ice plant) in that area and not one thing has stayed alive for more than a week.

  • Why are the leaves curling on the ends of my tomatoes that are in pots?

  • ObelixxObelixx Posts: 29,145

    Beryl - you need to start a new thread as tomato experts won't necessarily read about problems with cosmos.

    Alan - It sounds like your soil has been contaminated with a persistent weedkiller or some other chemical pollution.   Have you had a spill in your garage?   Treated the wall with something?  

    You could try digging out the soil there to a depth of about 12"/30cms and replacing it but that would be hard work and may be expensive without knowing what the problem is.   Can you get some of the soil analysed?

    Vendée - 20kms from Atlantic coast.
    "We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
  • alanaleealanalee Posts: 3

    Ooh, interesting, obelixx. Nothing has happened that I know of, but maybe my HOA did something without my knowledge when they were cleaning the gutters or something. I will try to figure out how to get the soil analzed. Thank you!

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