Forum home Plants

Speaking of Cosmos...

My other two potted Cosmos seem to be doing rather well.

This one, which was potted a couple of weeks ago, seems to go rather limp, and then recovers a little, and then goes limp again.

I can't work out whether it's too much water, too little, or something else. It is very well draining, and potted in good soil/medium... No obvious sign of damage. 

Do they sometimes behave like this? I'd like to think it's not diseased, but it really isn't looking good at the moment.



  • FireFire Posts: 17,393
    Maybe too well drained. And that's a pretty small pot. Is there any earth to go into? Or another pot, like the biggest one behind it?
  • My other two are in identical pots but not suffering any problems... I could try re-potting into a larger one I guess  :#
  • fidgetbonesfidgetbones Posts: 17,281
    Try putting a saucer under it. The water is probably running straight through.
  • Try putting a saucer under it. The water is probably running straight through.
    Sometimes the simple solutions are the right ones!

    I have to say, I do think it is draining 'too well' since just before posting this I did douse it in water, and having just returned to it and giving the soil a poke, some 50 minutes later it already has a dry springy-ness to it.

    Just re-watered and everything came seeping through immediately. Put a saucer under it and will perhaps re-pot if no signs of improvement over the next few days.

    Thanks :smile:
  • Resurrection!

  • FireFire Posts: 17,393
    Hurrah! Get a bigger pot x
  • JennyJJennyJ Posts: 9,631
    Make sure the compost is soaked through before you put it into a bigger pot.  A good way is to put the whole thing, pot and all, into a bucket of water and hold it under the surface until the bubbles stop rising.  You can use the water that's left in the bucket afterwards to water other plants, so it's not wasted.
    Doncaster, South Yorkshire. Soil type: sandy, well-drained
  • Valley GardenerValley Gardener Posts: 2,776
    Why aren't my Cosmos from seed flowering yet? They are about four feet tall,very lush foliage,but when i inspected them yesterday,I can't see any buds! Do they have varieties that bloom later? I bought a few to fill spaces from the GC and they are prolific in their flowering! Things looking a bit unbalanced at the moment!
    The whole truth is an instrument that can only be played by an expert.
  • LynLyn Posts: 22,884
    4’ tall and very lush indicates too richer soil, or you’ve fed them. 
    Theres still plenty of time for flowers though, I like to keep picking off buds so they will flower right into autumn, not so this year, everything’s dead! 
    Gardening on the wild, windy west side of Dartmoor. 

  • Valley GardenerValley Gardener Posts: 2,776
    Thanks Lyn,yes I did feed them!and they also get watered well,which I didn't realise you don't have to do as they originate from a dry country! Still,it's nice to see a bit of green around in this drought.
    The whole truth is an instrument that can only be played by an expert.
Sign In or Register to comment.