yes i have male and female plants. but i like it that way, im a seed freak. i was told by an old timer near by that seed plants are much more productive in the long run. and the commercial asparagus is good yielding for the first 5 years but declines after that. the seed plants are supposed to kick it up a notch after 3-4 years of production and keeps going for 20-40 with good care. and hes been growing asparagus for a LONG time, and his stuff is amazing so i trust him.
so far all seems to be true, i have one patch from a nursery (cant remember the variety) that is 6 years old from planting. i also have a patch from seed that is 6 years from planting. the seeds took longer to give me food of course, but it seems that the plants are far healthier and taste better, and only get better every year.
and since i start seed every year, i have patches that are 5 years, 4,3,2,1 and i just planted 200 seeds the other day that will sprout next spring.
EDIT: if you have berries at all, you have male and females.
For all things come from earth, and all things end by becoming earth.