The effects of pH, osmolarity, and oxygen content on solution uptake by cut flowers of Rosa hybrida L. cvs. Cara Mia and White Satin were investigated. Solution uptake was increased at low pH (below 3) while high pH (above 6) inhibited uptake; both effects were amplified with time. Solution uptake was altered by the composition of the buffer. Maximum vase life was achieved with pH 5 solutions. The rates of uptake of various floral chemicals correlated well with the pH values. Mannitol and high concentration of sucrose significantly inhibited total solution uptake but potassium chloride did not inhibit uptake. Deoxygenated solutions were taken up 45% more rapidly during the first 2 hours, but oxygen content had no significant effect on total uptake after 72 hours. High rates of solution uptake do not seem to be required for extension of cut rose vase life.