I do a lot of of gardening and I have quite a lot of land to maintain. There is quite a lot of contact with poisonous plants, which are very poisonous but are beautiful and smell quite tempting.
These are often inflorescences that carry seeds. The seeds are preservation, continuity, permanence, should it be quite a matter of Venus?
If Venus is somehow involved in such things, what would be the figurative quality of Venus for the seeds of poisonous plants? So to speak in astrological language? Venus and strong poison?
For poisons, I would look into Rahu (and/or Ketu). I have a book about Hermetic Herbalism that lists which plants each planet rules. I can give you the Venus list if you're interested. Some may be poisonous but I don't know enough about it to know. Ernst may have something as well but I think he's focused more on Bach flowers.
I think seeds in general, like nuts, are linked with Jupiter.