I've been very good at deadheading this year - the pearl roses, in particular, are only 2 years old (3rd season) and were a present from our children on our 30th wedding anniversary, so I've been trying to look after them properly The climbers were new last year. They currently have a few flowers, but I'd hoped for more Other plants, as said by someone else, have flowered several times without a problem.
It probably depends on the temperature from now on. Daylight length is shortening which doesn't help but the forecast warmer weather may keep us all going Fingers crossed, except when holding your secateurs... could be tricky.
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I've been very good at deadheading this year

- the pearl roses, in particular, are only 2 years old (3rd season) and were a present from our children on our 30th wedding anniversary, so I've been trying to look after them properly 
The climbers were new last year. They currently have a few flowers, but I'd hoped for more
Other plants, as said by someone else, have flowered several times without a problem.
thanks all for your advice - reassuring to know the dead heading is helping. Hoping they can hold on for a another 3 weeks!
It probably depends on the temperature from now on. Daylight length is shortening which doesn't help but the forecast warmer weather may keep us all going
Fingers crossed, except when holding your secateurs... could be tricky.