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What´s your opinion on using rooting hormones?


Stefan P.

What´s your opinion on using rooting hormones?  

75 members have voted

  1. 1.

    • I use them frequently as they work fine for me!
      12
    • I only use them on Nepenthes cuttings.
      9
    • I didn´t use them yet, but maybe will give it a try.
      21
    • I didn´t use them yet and in all probability never will.
      17
    • I gave them a try but with no or little success.
      11
    • I gave them a try but they did more harm than good.
      5


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Opinions whether to apply rooting hormones to cp-cuttings or not seem to differ a lot both on the internet and specialist literature.

I´ve noticed that the topic also came up several times in this forum during the past few years and views differed as well.

Now I´m wondering what the majority opinion/experience on using e.g. ´Rhizopon AA´ or ´B´, ´Clonex-Gel´, etc. would be at present?

Thank you very much for participating! :shock:

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Guest Aidan

Never, ever under any circumstances. No, no way. Never again!!!

Clear? :shock:

In my hands, rooting hormone reduced the strike rate of Pelargonium cuttings and that takes some doing!!!

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Recently I've rooted 3 ventricosa basals, using rooting powder (0,2% IAA), in a week. Cotrol group (2 basals) didn't show any sign of rooting at that time so I've also used powder on them and after few days they striked. However the same powder didn't help when I used on boshiana. I guess that rooting powders with NAA or IBA could be more helpful, when rooting more lignified cuttings (like boshiana I've mentioned).

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  • 1 month later...

I like to use superthrive as per "The Savage Garden" suggests when repotting by soaking the rhyzome in a bucket of water/superthrive for 30 mins to give the plant time to absorb some of the hormone.

I haven't experimented without using it but I do know I've never lost a plant after repotting. It could be that the plant is less stressed simply by sitting in water so the roots don't dry between being taken out of the pot and the soil removed to the time it gets put back in fresh media.

I've not tried nep cuttings yet either so I'm not really answering your question directly.

I do know for a fact that it works a treat on my bonsai after heavy root prunings but I'm sure there isn't any comparisson between the roots of CP and those on trees.

I guess it's just peace of mind more than anything else.

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Like Aiden I have used them on Pelargonium cuttings and also fuchsias and they deffinately reduced success. Also, as a Glasshouse Manager, for 10 years, in the past I found that no plant showed a significant improvement in rooting after using hormones

However, one use I have founf for them is that where you can cut a stem off a plant where the wound is large or damaged if some rooting powder is applied to this the wound heals quicker with a less likelyhood of infection.

Bruce

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not sure what brand/type of rooting powder you are using, but probably 90% of all cutting raised plants you can buy from garden centres ect as well as young plants supplied to growers that have been taken as cuttings will use rooting powder

rob

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The fact is rooting hormones have only a very short self life. When you buy them from garden centres etc they will be of no use as the self life as gone by then . Going back they use to contain fungicides and it's that what were giving better results .

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As gotcher states they contain certain fungicides, a fact I should have stated in my earlier post, hence the reason why I find them useful and successful for the wellbeing of the "other end" of the cutting!!

Bruce

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It was many years ago, when in the amenity sector, ie had access to commercial products, when I used hormones, the products at the time contained the fungicides. Have not bought any for 20 years at leat so cannot comment on the current analysis. Looking at my previous post it was in the current tense when it should have been in ther past tense!!

Bruce

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  • 11 months later...

I use rooting hormone if I'm especially worried about the strike rate of the cuttings, but I don't find it necessary. As far as I've seen, most of the available rooting hormones seem to be missing the fungicide that was frequently available in Rootone, but I just put a little rooting hormone in a condiment cup or on a styrofoam plate and add a little sprinkle of Captan to it and mix it. Seems to work OK, and when I sow seeds I have a little Captan in a spice container (used to contain lemon pepper), and I just sprinkle it lightly over the surface after sowing the seeds and water it in with a spray bottle. I haven't had any problems with damping off using this treatment.

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