Forum home› The potting shed
This Forum will close on Wednesday 27 March, 2024. Please refer to the announcement on the Discussions page for further detail.

hormone rooting powder /gel

little-annlittle-ann Posts: 878
in The potting shed

how long is the shelf life of hormone rooting powder  or gel when its been opened, if you use it do you buy new every year

«1

Posts

  • Judith 5Judith 5 Posts: 108

    Ive only ever had one pot of hormone rooting powder, it must be about 15 years old.

  • Tropical SamTropical Sam Posts: 1,488

    Cuttings either take or do not. Rooting powder, in my opinion, for most plants, is a placebo.

  • little-annlittle-ann Posts: 878

    i am having trouble with my internet today, this question has posted twice for some reason

     

  • Reluctant_GardenerReluctant_Gardener Posts: 284

    I haven't tried a controlled experiment between synthesised auxin-based powder and nothing. I've raced plants auxin v sugar but not in statistically significant numbers and it was a draw. I tested a fresh pot against one that was drowned, dried out and I had attempted to repowder and that again was a draw. 

    I suspect the shelf life of the synthetic auxin powder will be when you have used it up.

    A search on scholar.google.co.uk should yield more controlled scientific findings on the efficacy of sugars, auxins or neither on adventitious root formation..

  • little-annlittle-ann Posts: 878
    Thank you all
  • November MemberNovember Member Posts: 139

    Clonex one of the more common gels have a use by date on it  day month and year. .

    You can always check how long left when buying it.It is only for one year from new

    Powder might last longer but do not contaminate by dipping into main source.

    Decant and keep the majority sealed and pristine.

     

  • little-annlittle-ann Posts: 878
    Mine has no date so I think a new one is in order
  • AlexgreengrowerAlexgreengrower Posts: 20
    Ive tried growing on cuttings with and without rooting powder and the results are the same. But what i have found is that if its a rose cutting rooting powder is a must. As for how long its lasts, store it like you would store seeds and it should last for years. Ive never used the gel.
  • little-annlittle-ann Posts: 878
    I shoved a few rose clipping along the edge of my raspberry bed last year and they are growing well, I would post a picture but the menu bar has disapeared from my ipad
  • little-annlittle-ann Posts: 878

    image

     

    image

     from my other tablet, i have done this before without any sort of preparation to the cuttings and it works for meimage

     

Sign In or Register to comment.