hi, can someone pls advise me how to save my bottle gourds, they grow 2-4 inches long then turn brown and fall off. Likewise with the male flowers, they turn brown and then fall off from the stem before they even get a chance to bloom. I water them daily, although the plants are in a pot, but have proper drainage i.e. extra holes had been drilled, then stones had been put at bottom of the pot and soil on top. I am getting stressed as the leaves seem very healthy, but no fruit.