Plants and Astrology

1
Hello All,
Am a gardener working in Jerusalem and have just woken up to the connection between plants and planets:)
Am researching the following questions and would be grateful for any leads:
-Is there any authoritative listing/rationale of plants associated with their Zodiac signs apart from Culpeper?
-Some of my clients request plants associated with their natal chart. What do I need to know in order to get them the right plant?!
Thanks & keep up the good work,
Avi
P.S.: Culpeper has become my Bible and doorway into astrology:)

2
Culpepper is a great source and always a fun read.
Is there any authoritative listing/rationale of plants associated with their Zodiac signs apart from Culpeper?
You may wish to get a copy of Lee Lehman's book Essential Dignities, and pay special attention to chapter 3 "A Botanical Interlude." Ms Lehman has her doctorate in botony and is a valuable resource in this area as well as horary astrology in general.

Tom