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What’s happening to my Lupins?

zugeniezugenie Posts: 831
in Problem solving
They were all growing really well, I potted them on about 2 weeks ago and now two have gone crispy and died - I assumed this was because I’d put them on a sunny windowsill, except another two that are under a grow light are also starting to look bad.


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  • zugeniezugenie Posts: 831
    Here's one of the ones that looks dead, I pulled it out to check the roots and I couldn’t see anything obviously wrong!


  • Pete.8Pete.8 Posts: 11,340
    Just a guess, but could they have been overfed?

    Billericay - Essex

    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • zugeniezugenie Posts: 831
    edited April 2022
    I did pot them on into dalefoot which is quite a nutrient rich compost, haven’t done any other kind of feeding
  • PosyPosy Posts: 3,601
    Or possibly overwatered? That compost looks a bit odd. They need good drainage.
  • FairygirlFairygirl Posts: 55,117
    They need gritty a medium when potted on. Did they have a decent little root system and proper leaves on them when you pricked them out?

    Also - where have you got them now? A sunny windowsill can be far too much for tiny plants.
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • Pete.8Pete.8 Posts: 11,340
    If you have more seed you can still sow them.
    They may not flower this year, but will next year.

    I sowed some Russell Mixed on 27 March and they now have their true leaves.
    I leave them in pots until I see the colour of the flower spike in summer which I then cut off.
    I keep the colours I like and give the others away, then plant mine out in autumn.

    Billericay - Essex

    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • Nanny BeachNanny Beach Posts: 8,719
    You've Molly coddled them. They are hardy perennials. I sowed half my collected seeds in autumn barely frost free green house,they are putting on an inch a day.
  • PosyPosy Posts: 3,601
    I find it difficult to get lupins through a wet winter - my soil gets very waterlogged because the water-table is high, so I plant out in Spring.
  • Joyce GoldenlilyJoyce Goldenlily Posts: 2,933
    I see in the pics where you are holding the plants, that the soil has shrunk away from the sides of the pots, and is from the colour of the soil bone dry. Maybe you have kept them dry for too long, shrivelling leaves can be a sign of lack of water.
  • zugeniezugenie Posts: 831
    @Posy I’m sure I haven’t overwatered them, I’m quite careful about that and always check the moisture level by sticking my finger in the pot before watering.

    @Fairygirl it’s not a gritty one, just in peat free compost, yes I sowed the seed into 7cm pots and didn’t pot them into the 9cm ones until they had a good covering of roots in the pot and decent top growth same as I always do! The littlest one is the outlier it germinated late and in the pot of one that was much more established so I put it in it’s own little pot when I potted on the big one. I had some on a sunny windowsill although have moved them now, but even the ones away from the window under a growlight are going the same way.

    @Nanny Beach I haven’t molly coddled them I’ve just started them off indoors

    @Joyce Goldenlily the soil isn’t dry, the dalefoot compost shrinks from the edges even when it’s moist, my snapdragons are exactly the same but the soil is moist. It’s why I always check with my finger before watering.

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