Do cucumbers have male and female flowers?
Then, why do my cucumber plants have flowers but no fruit?
The female flower cannot produce the pollen needed to cause the fruit to develop and is dependent upon insect (or human) pollinators to transport the pollen from the male flower. The male flowers begin forming before the female flowers form. So, it is possible to have cucumbers blooming, but not producing fruit.
Thereof, how can you tell if a cucumber flower is male or female?
Inspect the bright yellow flowers growing on the cucumber plant. Look behind each flower for a small immature cucumber growing behind it. Female flowers have this immature bloom, known as an ovary, growing behind it, while male flowers do not. Male flowers grow on a thinner-looking stem.
2. After germination the first male flower would be seen within 35 to 55 days roughly, which will be later followed by developing a female flower in one or two weeks (i.e., 42 to 62 days). 3. The fertilized female flower will take 10 to 12 days to produce fruits.