If I recall correctly, sassafras does make seeds but only on female plants. It seems that its primary means of spreading is through the underground structures.
Name: Michele Roth N.E. Indiana - Zone 5b, and F (Zone 9b) I'm always on my way out the door..
dave said:If I recall correctly, sassafras does make seeds but only on female plants. It seems that its primary means of spreading is through the underground structures.
I've found very few seedlings here, but there are some.
Name: Tom Cagle SE-OH (Zone 6a) Old, fat, and gardening in OH
FW Schumacher offers seed. So my first guess was wrong. (That this was a by rhizome only). They do mention viability problems for seed, which only makes sense as this is a bottom-land tree.
So, no matter if you collect or buy seed, mix it in with some dampened peat or perlite and refrigerate damp seed till fall plant out.
The USDA Forest Service has a page about sassafras that includes seed stratification requirements and says vegetative propagation is better by root cuttings than stem cuttings.