Roses Expected to Bloom Through Christmas Due to Unusually Mild Autumn

Gardeners may find a surprising late-season gift this year as roses are expected to continue blooming well into December. Experts attribute this phenomenon to the unseasonably mild autumn conditions, which have followed a record-breaking hot summer. These 'spring-like' conditions have encouraged roses, typically associated with mid-summer, to produce fresh buds and continue flowering.

Horticulturalist Toby Davis of Jolly Gardeners noted that classic English roses are currently flourishing. "The cooler temperatures and a bit of rain have resulted in plenty of fresh growth and strong flower buds," Davis stated. "This year a well-fed, healthy rose will be flowering up to Christmas and beyond."

The unusually long period of warm weather this summer saw temperatures in the UK rise above 28C (82.4F) on 55 days. This intense heat caused many plants, including roses, to enter a 'survival mode,' a stress response that can paradoxically lead to more prolific flowering.

Sally Newbrook, a horticulturalist at RHS Garden Rosemoor in Devon, anticipates that up to half of the garden's roses could still be in bloom by the end of the year. "It's been a surprise to see how many roses are out because usually they are slowing down now, but they are ramping up again," Newbrook said. "It's very possible that we will have roses flowering in December. You'd normally have the odd one but it's likely that there'll be quite a few more."

She explained that the hot summer caused the plants to go dormant, and the subsequent rain has allowed them to start anew. "As long as we don't have a very harsh winter, they will keep going. There is so much fresh growth on lots of them," she added.

Other plants are also experiencing extended blooming periods, with dahlias flowering later than usual, and geraniums and hydrangeas still displaying color. "There's lots of green foliage, too, which you wouldn't usually expect," Newbrook observed. "It's exciting to see so many things, it feels like a bit of a reward for a difficult summer."

However, the extended warm seasons present challenges for traditional horticultural practices. Davis warned that warmer weather could complicate winter pruning and disease control efforts, requiring an adaptation of schedules for roses and other plants.