Q.zucchini plants male only
We have three zucchini plants that appear healthy, however, they are only producing male blossoms. this has been going on for at least a month. should we expect female blossoms within a month of male blossoms? Is there anything we can do to encourage the female blossoms?

In most cases, just give the plants more time.
Provide even watering.
https://www.gardeningknowhow.com/edible/vegetables/squash/female-male-squash-blossoms.htm
https://www.gardeningknowhow.com/edible/vegetables/zucchini/why-zucchini-blossoms-fall-off-the-plant.htm