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Lupins

Red mapleRed maple YorkshirePosts: 300
I've had a lovely display of lupins in a large pot this year (despite lupin aphids), but they are now on the turn. My question is, should I cut down the flowering stems now that the flowers are finished to perhaps promote further blooms this year, or should I let the seed heads develop so that I can collect seeds to plant on elsewhere (either into small pots to plant on into bigger pots later, or to plant into the ground)?
Another question - have the lupin aphids been especially bad for other lupin growers this year? (I'm in Yorkshire). I've been on a daily lupin aphid hunt this year, and kept them at bay, but not got rid of them completely - do the eggs over-winter in the soil does anyone know? They don't seem to have any predators except me!!

Posts

  • Butterfly66Butterfly66 BirminghamPosts: 754
    Deadhead them and you’ll definitely get more flowers. Mine usually have around three or more flushes of flowers so you can save seed from some of the later blooms. You can see if there are any new blooms waiting as they will be in the leaf axils below the base of the existing flower stems 
    Can’t advise re aphids, I just leave them to the blue tits, lacewings etc here  Touch wood we haven’t had any aphids yet on the lupins, just the roses here
     If you have a garden and a library, you have everything you need.”—Marcus Tullius Cicero
  • Red mapleRed maple YorkshirePosts: 300
    Thank you Butterfly66. Will deadhead them today.
    The aphids seem particular to the lupins - they are huge compared to the usual aphids on roses, etc, and the birds and insects seem to ignore them for some reason. Perhaps they have an unpleasant taste so are left alone.
  • JennyJJennyJ DoncasterPosts: 7,008
    I don't like to tempt fate but so far this year I haven't seen any lupin aphids. Fingers and toes crossed that they took a big hit from the winter weather which was colder than we've had in recent years.
  • Red mapleRed maple YorkshirePosts: 300
    I hope you are right Jenny and you don't get any. I'm in same area as you, so perhaps it's the luck of the draw. Are yours in the ground or in pots? Mine are in a pot, maybe that has something to do with it? (Though I'm purely guessing here  :)
  • Janie BJanie B LincolnshirePosts: 862
    No lupin aphids on mine either this year, although we have been plagued in previous years... 
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