You should. Much higher chance of getting fruit if you have some genetic diversity in your plant stock. So I've ordered some from a couple different people, had people send me seeds, and rescued my own.

Hopefully after I get some seeds here from some wild trees near me, I'd be happy to mail you some to stratify.

Good luck in your journey, DM me if you want to talk pawpaws.

There are several pawpaw festivals that normally happen later in the year in the Eastern United States. The biggest that I know of is in Athens, Ohio. A quick search on the Internet may turn up one close to wherever you’re at, Also a good place to find them in the wild is close to streams and creeks, they prefer lowland areas where there are larger trees forming a canopy.

Have you tried using INaturalist? They have a map of plants that have been identified

That explains why I haven't gotten any fruit. I have 3 healthy trees that are about 5 feet tall but they're only 6 years old.

The neighbor cut down his massive maple trees shading my pawpaws and now the leaves are burning on the 90+ days here 🥺

Only 7 years and 6 months to go for me then : )

... If they survive this drought and heat wave

It is. Get you a second tree from a different place. Genetic diversity increases chances. Takes years.

Part of the rub with them is that they need, or rather prefer, some genetic diversity to get fruit. It's a colonial organism, so if you see a whole big patch of them, good chance it's all the exact same one or a couple closely related ones that have spread out like the aspen trees in Colorado.

You can go buy a couple ones locally or have them mailed to you and significantly improve your chances of getting fruit. You can also hand pollinate those little red flowers with a paintbrush.

I’ve been trying to grow Pawpaw in zone2b climate

That's gonna be a challenge. Most of the time I see zone 4 listed as the coldest zone they can survive. You may want to look at some of the techniques people use for overwintering citrus in cold climates to try and keep your saplings alive.

Also if you haven't already you might want to look into service berries as a fruit tree you could grow in your climate. Some species are hearty to zone 2, so with your 2b zone they should be happy in your climate.

Keep trying. Hopefully at some point it will stick. The breeding and grafting of these has gained traction. So someone really might develop a resistant version at some point. It's a fun hobby to mess with them that I think is inherently rewarding for its own activity, rather than necessarily requiring any perfect outcomes. So, document or share your experiences. Someone else can learn from what you learn. And we can all work together to help keep this wonderful tree common throughout North America.

In my humble and largely meaningless opinion, they are one of the most enchanting plants in North America.

Yep probably another big housing development. And this is a particularly rich forest for the area.

They need to be cold stratified, and they can't get dried out. I definitely could not write a better guide than some of the available stuff online. But use lots of seeds and bear those two things in mind. Best of luck!