Maria has questions about how long it takes a pawpaw tree to produce fruit from seed (note that she is asking about Asimina triloba, not the tropical “pawpaw” Carica papaya):
“I read with interest how to grow pawpaw from seeds. Nowhere is mentioned how long does it take to produce fruit. I live in southern Ontario and don’t know any place with pawpaw fruit, we never eat it either. Local nursery is selling a plant about 3 ft tall ($40), must be 2 to 3 years old. They told me it will take another 6 to 10 years to produce fruit. We may not be around in 10 years therefore I was reluctant to buy the plant. The plant is common pawpaw and they suggested to get another variety from somewhere else as 2 trees are need it. It’s disappointing that knowledge of such a big nursery is so limited to a fruit tree common to southern Ontario. Should I buy the plant and when it blooms (how many years?) try to cross pollinate as suggested in your article. Can I pollinate from bloom to bloom or I need another tree?”
Great questions, Maria.
So How Long Does it Take for a Seedling PawPaw Tree to Bear Fruit?
According to a presentation by Patrick Byers at the University of Missouri:
Getting Your PawPaw to Fruit Faster
“Poor pollination has always plagued the pawpaw in nature, and the problem has followed them into domestication. Pawpaw flowers are perfect, in that they have both male and female reproduction parts, but they are not self-pollinating. The flowers are also protogynaus, i.e., the female stigma matures and is no longer receptive when the male pollen is shed. In addition pawpaws are self-incompatible, requiring cross pollination from another unrelated pawpaw tree.Bees show no interest in pawpaw flowers. The task of pollenization is left to unenthusiastic species of flies and beetles. A better solution for the home gardener is to hand pollinate, using a small, soft artist’s brush to transfer pollen to the stigma. Pollen is ripe for gathering when the ball of anthers is brownish in color, loose and friable. Pollen grains should appear as small beige-colored particles on the brush hairs. The stigma is receptive when the tips of the pistils are green, glossy and sticky, and the anther ball is firm and greenish to light yellow in color.”
I had a Florida pawpaw variety (Asimina parviflora) bloom and set fruit at the young age of three, but that isn’t all that common for the common pawpaw.