Growing Ashitaba (ANGELICA KEISKEI) Longevity Herb

I received a few seeds labeled “ASHITABA” from a viewer .  That was it. No other info. So I set out trying to find more information.
Apparently this herb is native to China and can grow up to 6 feet high.
The one thing that intrigued me most about it, was the fact that it contained vitamin B12, which is rare for any plant to have.

Ashitaba  This herb, also known as tomorrow’s leaf , is hardy to 20 degrees F and is usually grown in zones 7-9.
The name “tomorrow’s leaf” comes from the fact that you can pick a leaf today, and get a new one the next.

I am really excited to grow this plant. Hopefully, I will grow it to full maturity and be able to save the seeds to share with my viewers.

(From Horizon Herbs Website):
The herb is considered effective in treating eczema and psoriasis, also disorders of the gastrointestinal system, hepatitis, cancer, anemia, chronic fatigue, etc. In-vivo tests of chalcones have shown   strong antibiotic activity against staphylococcus.