If your girlfriend does not like roses because they don't last long what other flowers can you give her for Valentine's Day?

Alstroemerias last twice as long as roses--and can usually be found, cheaper, at supermarkets as well as at florist shops. Alstroemerias last twice as long as roses, and they can often be found (cheaper) at supermarkets as well as in florist shops.

Consider a combination of red and white carnations mixed with greens and baby's breath.

Carnations are hardy and usually last a lot longer than roses (in my experience.)

Also keep in mind that there are specific things you can do to make roses last a little longer - if roses are not prepared properly before putting them in a vase, they won't last as long.