You might talk to your Agricultural Universities near you. I got Rhizobia free in exchange for sending them soil samples collected a specific way bi-monthly. The only variety that nodulated for me was Dragon Milkvetch in 2014 and then only 1 plant in the soil treated by Rhizobia. The same plants in the same soil on either side of it did not nodulate. I planted Huang qi with soil I obtained from a Chinese grocery in St. Louis Missouri but it died of crown rot in 2015 I will try Huanq qi again in 2017.
So my only success, though moderate, was from the inoculate that I obtained from my local University.
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posted 3 years ago
thanks Nancy ive found a seed dealer called Eden Seeds in oz that sells inoculant and giving that a go
Location: Arkansas Ozarks zone 7 alluvial,black,deep loam/clay with few rocks, wonderful creek bottom!
posted 3 years ago
I grew astragalus (astragalus membranaceus from Richters) from seed without inoculation. As I remember the seeds germinated fine in a flat and then transplanted to small pots, I think I tried a little sandpaper on a handful of seeds and that might have helped. I planted andrographis at the same time so I'm not sure which I did that too but it was whatever the packet said...
I have two big pots full of wintered over plants outside (two years) big tall plants and they are flowering now. All of the small plants that I set out to make it on their own did not survive. I didn't have any luck planting seed straight into the ground either.
I plan to plant these in the ground now that they are bigger.
I'm hoping for some seed from these before a freeze...I think there's time.
I'll check out the nodules when I transplant.....good luck with yours, it's a great herb
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