How can I tell male from female plants?

Only at flowering. Female flowers have a visible ovary that swells into fruit; males carry clusters of stamens.

Is the fruit edible raw?

Yes when fully ripe, though it is very tart. It is most often used for jams, syrups and juice.

1
Arrival
Unpack promptly, stand upright and water if dry. Let excess drain.
2
First 7 days
Keep in bright shade, out of wind, with even moisture. Some leaf drop is normal.
3
Acclimation
Increase direct sun over one to two weeks until the plant tolerates full sun.
4
Transplant
Once growing, pot up one size or plant in a sunny, well-drained site at the same soil level.
5
Establishment
Water deeply when the top of the soil dries; begin light balanced feeding.
6
Container or ground
Containers suit young plants and cool climates; in frost-free areas plant out for full size and best fruiting.
7
Pruning
Shape early while spines are few. Tip branches to encourage a dense frame; wear gloves.
8
Mature care
Full sun, deep occasional watering and moderate feeding. Mulch to conserve moisture.
9
Flowering and pollination
Small petal-less flowers appear in leaf axils. Plants are often male or female, so several plants improve fruit set.
10
Fruit development
Fruit swells and ripens from green through orange to dark purple. Harvest when deeply colored and slightly soft.

Likely cause: Shipping stress and light change.

Fix: Bright shade and even moisture; new leaves follow.

Likely cause: Full sun too soon.

Fix: Acclimate gradually.

Likely cause: Male plant or no pollen source.

Fix: Grow several plants to include both sexes.

Likely cause: Waterlogged roots.

Fix: Improve drainage and water less often.

How can I tell male from female plants?: Only at flowering. Female flowers have a visible ovary that swells into fruit; males carry clusters of stamens.
Is the fruit edible raw?: Yes when fully ripe, though it is very tart. It is most often used for jams, syrups and juice.