Gayle Licari wrote in a message to Alex Vasauskas:
 GL> Have you had success growing donq quai.
 GL> Any tips I would appreciate.
I haven't grown this one yet, but here is what the _Herb Society
of America Encyclopedia of Herbs_ says about growing dong quai
(Angelica sinensis) and its European cousin angelica (Angelica
archangelica):
"GROWTH  ... Rich, moist soil in sun or partial shade.  Propagate
by seed sown _in situ_ in autumn or spring.  Seed is viable
for one year only, but most plants tend to self-seed freely.
Removing the flower heads before seed develops will prolong
the life of short-lived species.  The flowers attract many
beneficial insects, such as wasps, that prey on garden pests.
HARVEST  Roots are lifted in autumn, leaves gathered before
flowering, and seeds harvested as they ripen; all are dried
for decoctions.  Stems of A. archangelica are cut in early
summer.
WARNING  Skin allergen."
These are listed as being hardy hardy in zones 4-9.  Only
the roots of dong quai are used.
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