Pollenation window

Hi,

my saracenia is just blooming (the bud has just begun to open and the outer petals have just began to flare out) and im planning on crossing it with another plant. However the other plant is a good couple of weeks behind mine, and i was wondering how long my plant can go before it is too late to pollinate it.

What is the length of the 'window' in which pollination should occur.

Any info appreciated

Many thanx

dave