I have access to thousands of black locust seeds that are still in the pods on the tops of the trees. Are these seeds viable? How long do they need moist stratification?
believe it or not i had sucess in germinating them by boiling them!
Soak in boiling water for 10 sec.
to 5 min., then in water at room
temp. for 8 to 10 hours. Then plant them!
It worked for me.
Do I boil them now and plant in fall; or store in a dry, cold place and then boil then plant in spring?
I wintersowed honey locust two years ago. I picked up the pod off the sidewalk downtown in the rain =) I just dried mine on a plate and pretty much left them there untill I sowed them. I have one surviving sapling, about knee high!
(I know its an old thread, but the following info could be useful to someone doing a search)
I just started a whole bunch of black locust seeds. I collected them last fall, and stuck them in my freezer. In April I used a sharp razor to cut open the pods. I only kept the biggest, healthiest looking seeds from the biggest pods. I nicked/shaved a small piece of the OUTER seed casing (do not cut the green inner seed), then submerged them in warm water overnight (12 hours). They should swell up a bit, I think you could keep them submerged for longer, probably 24 hours, if they haven't swelled, you should wait longer (maybe remove the ones that swelled and leave the others).
Then I wrapped them in a wet paper towel, kept wet by placing one end in a small jar of water to wick up to the rest of the paper towel (seeds NOT under water). Most of the seeds germinated after just 2 days. I planted the ones that germinated and they are growing well right now.
Note that this technique works well for most seeds with a hard outer shell including many tree seeds. Often when directions say to be patient, germination can take 3-4 weeks, you can use this method to get germination in 3 days (I've done it with strawberries for example and slow to germinate tree seeds).
I used a technique similar to the one tradergordo used. instead of putting the paper towel in a jar, i put the damp paper towel in a plastic bag and put it in a worm place. i got germination as early as a few days. also, before i put the seeds in the paper towel i soaked them for about 24 hours and filed down a little bit of the seed coat.