Put flowers in the vase with clean water. Change water & trim stems 2cm at an angel everyday. Remove all leaves that sit below the water line. Keep flowers in a cool place, away from heat and direct sunlight.
Remove any dead flowers/leaves, this will help to prolong the life of the remaining flowers
Avoid humid environment (i.e. rainy days), ideally place in cool dry place. Avoid sun exposure as it accelerates colour degradation. Clean the dust gently with hair dryer that set on cool and lowest air speed
With care protection, able to last at least half year and longer
Avoid sharp objects, heat & prolonged sun exposure.
With care protection, balloon can last at least 1 week and longer, it will gradually get smaller as deflated