I am new to this forum. I grow a few roses in a sheltered London garden (plenty of blackspot regrettably...) and I am perplexed about my two climbing icebergs.
during the 5 years that these healthy, vigorous plants have been in my garden, they give a marvellous flush of blooms in May/June lasting a good month all told. They then stubbornly refuse to rebloom. At all.
After flowering I religiously dead head and I have experimented with taking the stem down to shorter and longer lengths wondering if this may have affected the reblooming capacity. (it hasn't)
This year and following advice, I am feeding them regularly with a high potash feed. Can't see any buds developing - but lots of the usual healthy growth spurt that follows the knife. ....
I have since read that Iceberg climber ONLY bloom on old wood? Can anybody confirm with authority that this is correct? and is there any way to manipulate this?!?! Am seriously considering ditching these two lovely roses for something a bit more generous. I specifically bought them because of their reputation for repeat flowering. I must've missed the smallprint ... :-(
thanks for any input!