Sooner Plant Farm and ForestFarm are two mail-order nurseries that usually have a few Nyssa varieties in stock. Both are reputable.

I have used Forest Farm with good luck and heard good about Sooner but have never used them.

Nyssa sylvatica can be rather picky in transplant for me but is absolutely worth it. Let us know how yours does.

Your native blackgums should have ripe seed ready to be harvested right now if you are interested in growing them from seed as well =)

You can also see if your state forestry department sells them as seedlings

Here are some fairly cheap. I've bought from this seller a few times before and have always had a good experience

http://www.coldstreamfarm.net/black-gum-nyssa-sylvatica.html

Thanks for the info! Going to order some. These trees grow in east Texas but don't see a lot of them - when they are in fall color, there is nothing like them. Think I will order several smaller trees and coddle them, since they seem to be touchy about transplanting.

Yeah they are reported hard to transplant by many people online. I have found them very easy personally. I have planted 6 or 7 and only lost 1. As long as they are planted when they are only a couple years old, they are pretty easy imo

Good luck with your order! Keep us updated!

Mailordernatives (FL) and NativNurseries (MS) also have them, and they should be a southern seed source. Just be careful buying any from up north, because they'll cook in southern heat.

Blackgum trunk in southwest VA: