ASK RON

Which cut flowers need to be burned before they’re put into water or a vase?

Gail, Corona del Mar

Some flowers exude a sap when cut, sometimes this is milky-white, but often it is clear. Common examples are poppies, tulips, zinnias, asclepias and poinsettias. For these to last longer in a vase it is best to sear them for a few seconds. Burn the cut stem ends right away with a lighter, match or candle flame, then plunge them immediately into cool water for a lasting display. Water can pass through burned plant tissues and the flowers will last much longer.

? Ron Vanderhoff,

the Coastal Gardener