Do you have a picture of the things you think are seeds??

Yes you can start them with seed, by using a small pot with potting soil..cover with a vented piece of plastic to retain moisture, put in a sunny spot.

Rooting the plant is also an option. You can root from clippings..Clipped in early spring at the joint..You just take the clipping and stick it in a small pot of potting soil. Cover it with a small jar or vented plastic to retain moisture.

Or you can take the live plant and set it down <if it is in a pot>> so you can bend some of the branches to lay on top of the ground or a potting soil environment. Then put dirt on top of part of the branch, water it, and put a rock on top of that..About 3 weeks later you should be able to pick up the rock and find roots have grown on the buried part of the branch. Clip it off with the roots on your new clipping and plant it..It should grow under proper care.