The varieties I have are self pollinating. Those tons of yellow things popping up in the flower in a circle are the male parts if I have it right. The single thing in the middle is the female part. So take a paint brush and swish it thru those male parts, and brush it into the female part. To cross pollinate, simply grab the stuff from a different flower. You could try to pollinate the same flower. If the plant is real small, it might not have enough size to hold a fruit.

Gary

Kmekaru, like Gary mentions it is quite easy to pollinate the dragonfruit although I've never done it the blooms are so large it should be no problem. You would want to do the pollination in the evening when the flowers begin to open. From what I understand even different flowers from the same cultivar will not pollinate each other, you will require flower from a different cultivar to get it to produce fruits. It may be a bit difficult for your friend if all he/she grows is that one cultivar. Here's a picture of the open flower, get pollen from the anthers and brush it against the stigma.

greetings of peace!
WE had a dragon fruit in our backyard garden & keeps on flowering but up to this time almost 4 years now we have'nt experience seeing it bearing fruit.We already had several cuttings for transplanting in our farm but was discourage for we had no idea on manually pollinating dragon fruit.thanx & God bless
Jess

In Sri Lanka, Dragon Fruit plantations in commercial scale started recently.My son received two 12 inch long cuttings from a friend about 15 years back and he just kept them vertically against a Mango tree in our garden.Years went by and we noticed a large growth of a cacti which flowered during the months of May to late October but without any fruits.By this time my son was in Australia and when asked he told me that it was a dragon fruit cutting he placed against the mango tree. Cross pollination was not possible as it was high on the tree.However, later I went into commercial growing of dragon fruit and planted cuttings from the mango tree and cross pollinated successfully.

How can you tell what color plant you have?

Some varieties self pollinate, implying that you can use the pollen from a flower on another one of the same variety or from other varieties. Some other varieties need cross pollination, implying that you need the pollen of another variety (nothing about male or female).

Normally if you have many varieties, they will flower on the same night, hence you can cross pollinate. Sometimes flowers of different varieties does not open on the same night......... You can store some dry pollen in a glass jar in a refrigerator for a maximum of 3 days.