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Post by robh on Mar 8, 2016 18:45:52 GMT
Really hacked of have had 2 trays of cuttings damp off don,t quite know if it's because I am heating the whole reenhouse I'm using John nines potting compost and the other tray was sand I only spray when the sand compost goes dry I have moved another 2trays of cuttings above the heater temp is 60 degrees constant I will just persevere I'm taking cutting off tubers but leavening 4/5 cuttings on the tuber if nothing else I can split the tubers lol. I have a 40by30 heat tray I might connect that to the electric next year
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Post by Cat on Mar 8, 2016 20:36:22 GMT
I can't help with this one robh but I would like to follow for answers TY |
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Post by Deleted on Mar 8, 2016 21:39:01 GMT
I had a similar problem last year Rob. Got a new heated propagator, filled it with cuttings and they all went black. No heat control on it. I had better success with the lid off, misting twice a day. I had even better success using unheated seedtray size propagators with the vents open, no heat. Changed the compost to a lighter 75% clover compost, 25% vermiculite which helped a lot. I used to put 6 cuttings in a pot inside a clear Tesco plastic bag...worked fine too. Good luck Rob.
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Post by ian on Mar 8, 2016 21:40:43 GMT
Robh have you got any air movement? It is important the other thing is probably the rooting mix especially if you are watering by hand you mix wants to have enough moisture in it so it just holds together when compressed lightly in the hand. Yes you can root in sand (plastering sand) it has been washed or silver sand. You must keep it moist not wet through don't let it dry out too much. You could try a 50 /50 mix of peat and sharp sand rubbed together really well or your chosen compost and sharp sand. The reason I would prefer compost is because if the cuttings are rooted and you cannot move them on as quick as you would want the small amount of feed will keep the cutting in a good condition without a check (growth stop), you don't need to use a rooting compound but you may want to try baby bio roota it is very good. So I would say more air movement and regular spraying. Hope this helps Robh
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Post by robh on Mar 9, 2016 22:35:51 GMT
Thanks every one its all good info best of it is I took some hill rest Jersie watered the sand and shoved them in a heated propigator and just left them very ocainaly putting a little water in the base of the proper gator rooted in just over 2weeks but have spoke to a dahlia grower from Doncaster he told me to put my cuttings above the heater and turn the greenhouse heater up to70 as as cuttings need a higher temp than the tubers
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Post by robh on Mar 10, 2016 17:49:03 GMT
Seems to have have madesomeimprovement putting the cuttings over the heat I could feel the heat in the pots and cuttings a little perkier
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