Problems with 12 year old seed germination

fr0sty0 · Jul 15, 2025

Try soaking the seeds in a diluted seaweed extract.. . The natural growth hormones (auxins, cytokinins, and gibberellins) present in seaweed can help stimulate cell division and root development inside the embryo. I usually also add some sort of oxygen source for older seeds with this method. An air stone or something along those lines should be fine.

For every year that's passed of improperly stored seeds, this process gets much harder.

Another pricey option would be sending them off for embryo rescue...

Pōmaikaʻi iā ʻoe (Good luck)!

MrCatatonic · Jul 22, 2025

fr0sty0 said:
Try soaking the seeds in a diluted seaweed extract.. . The natural growth hormones (auxins, cytokinins, and gibberellins) present in seaweed can help stimulate cell division and root development inside the embryo. I usually also add some sort of oxygen source for older seeds with this method. An air stone or something along those lines should be fine.

For every year that's passed of improperly stored seeds, this process gets much harder.

Another pricey option would be sending them off for embryo rescue...

Pōmaikaʻi iā ʻoe (Good luck)!

Yeah, I just hate seeing them pop a little and show the tap root & then die. Frustrating, I'm gonna try sugar water. I've almost lost hope.

waterproof808 · Saturday at 11:22 AM

You have to use tissue culture techniques. Keep everything as sterile as possible and use some sort of tissue culture medium as a food source. A lot of tissue culture labs offer a service for old seeds.

Built · Saturday at 12:05 PM

Plant them, put them in a dark spot, and give them time be patient with each one, you can also use a knife and lightly scratch the surface up and down of the seed before planting, but with seeds i dont know about the best method is wet paper towel and sandwich bag and check every couple of days surely one will sprout

Problems with 12 year old seed germination

fr0sty0

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MrCatatonic

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waterproof808

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Built

Active Member

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