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johnnirose

Summer cuttings update

21 years ago

I am pleased to report that my experiment with summer cuttings has been quite successful. My results with cuttings taken mid-December are:

Crocus Rose - 1 successful strike out of 3 (33%)

Ambridge Rose - 1 successful strike out of 4 (25%)

Leonardo da Vinci - 4 successful strikes out of 4 (100%)

I have to say I am delighted with the results as all my previous attempts to strike cuttings in winter have been rotten failures (although I know it can work). It seems to me that it makes more sense to try cuttings during the warm weather when the plants are naturally in a growth phase rather than during their winter dormancy. My method was simply to place the cuttings in a pot filled with standard grade (black ticks) potting mix, no hormone powders or wounding the base of the cutting), place in a shady spot outside and water nearly every day.

I am also guessing that Leonardo da Vinci which seemed to strike so well may in fact grow and flower better on its own roots compared to the grafted rootstock. I can't believe that all rose varieties would be better off on say Dr Huey rootstock (mostly used in SA) and suspect the practice has a lot more to do with commercial benefits than proven performance. And by the way I suspect that a great deal of the rootstocks budded in SA are infected with rose mosaic virus as this is clearly endemic in the rose bushes I see in suburban gardens as well as even on new rose bushes being trialled in the National Rose Trial Gardens.

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