I have been trying somewhat unsuccessfully to grow Indian vegetables like Luffa (beerakaya), bottle gourd (sorrakaya) in Melbourne. Last year I had one Luffa when one of my daughters decided that it was a weed and pulled out. This year they are both flowering well but I did not find too many bees or butterflies around, there were plenty earlier, to pollinate them. Then one day I noticed that some bees came to drink water when Ava was playing with water. Now I changed to watering the vegetables in the morning so that there would be some wetness in the morning and even kept trays os water near the vegetable beds. Still I find only a couple of butterflies around and I am reduced to pollinating by hand.