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Why are my Cosmos leaves dying?

Helen ClayHelen Clay Posts: 46
in Problem solving
I’ve sown some Cosmos this year as my first ever plant I’ve grown. 4 have grown, 1 has a bud (I was so happy!) but I noticed that some of the leaves have gone brown & shrivelled. I’ve removed them but have I done something wrong?
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Posts

  • ObelixxObelixx Posts: 30,090
    Where do you have them?  If outside or unprotected it may be the cold.  They are not reliably hardy below 5C and babies will be even more vulnerable to cold.
    Vendée - 20kms from Atlantic coast.
    "The price good men (and women) pay for indifference to public affairs is to be ruled by evil men (and women)."
    Plato
  • Helen ClayHelen Clay Posts: 46
    In my living room, on a sofa arm where they’ll get the most sun. There is a draft there but the room isn’t that cold.
  • ObelixxObelixx Posts: 30,090
    They won't like cold draughts.  Have they got enough moisture?
    Vendée - 20kms from Atlantic coast.
    "The price good men (and women) pay for indifference to public affairs is to be ruled by evil men (and women)."
    Plato
  • Helen ClayHelen Clay Posts: 46
    I check the soil nearly every day & water when it's nearly completly dry. I wait until the warter comes out of the botton the little dish thing. Do they need more warter?
  • ObelixxObelixx Posts: 30,090
    edited May 2021
    The best way to water is to sink the pots or tray in a bucket or bowl or tray of water till no further air bubbles appear then set aside to drain.  That way you knw the compost is damp all through with no dry air pockets and no drowning or going thirsty.
    Vendée - 20kms from Atlantic coast.
    "The price good men (and women) pay for indifference to public affairs is to be ruled by evil men (and women)."
    Plato
  • Helen ClayHelen Clay Posts: 46
    I've come across that but I'll be honest I've been to scared to incase I over warter them. At what point should I do it, compeletly dry? Damp?
  • Helen ClayHelen Clay Posts: 46
    @Songbird-1 Oh, I have been putting them right in the suns' ray. The living room can get stuffy or humid more tha other rooms in the house (S facing) as it has the past month. Myabe they've been a little scortched?

  • DovefromaboveDovefromabove Posts: 88,147
    I think we need to see photos to get a better idea of what’s causing the problem. 

    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.





  • AnniDAnniD Posts: 12,585
    It could be that the air is too dry Helen. As Dove says, if you can post a photo it would help.
    It might be worth moving them to a bright (not sunny) windowsill during the day if you can. 
  • Helen ClayHelen Clay Posts: 46

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