As temperatures across the UK continue to climb, fresh cut flowers wilt much faster than usual. A simple and cost-free revival hack can get them looking vibrant again in just 30 minutes.
The '30-minute revival trick'
Sandra Varley, flower expert at Flying Flowers, has shared her top advice for helping floral arrangements withstand the heat. The method is straightforward: remove the stems from the vase and submerge the flower heads in cold water for 30 minutes. Afterwards, re-cut the stems at an angle before placing them back in fresh water.
"When temperatures climb, cut flowers lose moisture far faster, so even a freshly bought bouquet can start to wilt within a couple of days if it's not looked after properly," Varley said. "The good news is that a few simple changes can help extend the life of your flowers, even during a heatwave."
Trim 1-2 cm from the stems
During hotter periods, flowers need to draw up water as quickly as possible. "The ends of bouquet stems can become dry or sealed during transport, making it harder for water to travel up the stem," Varley explained. "Trimming 1-2 cm from each stem, at an angle, creates a fresh surface for water uptake and can dramatically improve hydration."
She also recommends using a thoroughly cleaned vase, as bacterial growth intensifies in warmer temperatures and can prevent stems from taking up water effectively.
Keep flowers topped up with fresh, cool water
"Heat causes water to evaporate much faster, so during a heatwave make sure to check your vase every day and keep it topped up with fresh, cool water," Varley said. "If the water starts to look cloudy, replace it completely and give the vase a quick rinse to reduce bacteria, which is one of the biggest causes of premature wilting."
For extra support, she recommends carefully misting the flower petals with a spray bottle to help sustain moisture levels.
Don't skip the flower food
Flower food becomes especially vital during warmer conditions, as it provides essential nutrients and prevents bacterial growth. Varley recommends using the pre-made sachet included with bouquets, and when refreshing the water, ensure new flower food is incorporated each time. "If you run out of the sachet and can't get any more, you can make your own flower food by combining a litre of water with one tablespoon of vinegar and one teaspoon of sugar as a quick backup," she added.
500ml of distilled white vinegar costs just 35p at Tesco, while 500g of granulated white sugar costs 75p at Sainsbury's.
Avoid placing bouquets in direct sunlight
During a heatwave, position cut flowers somewhere cool and shaded, away from sunny windows and heat-producing appliances. While a fan or air conditioning unit can help keep you comfortable, do not place flowers directly in the airflow, as this can dry out delicate petals and foliage. "If your home gets particularly warm, moving your bouquet to the coolest room overnight can also help extend its lifespan," Varley said.
She also recommends choosing a slightly bigger vase with a wider neck, which permits better air circulation around the stems and helps keep the bouquet fresher for longer.
