Wormwood (Artemisia absinthium)

Perennial.
100 seeds per packet. 

Powerful ancient plant that has been used for milennia for it's antihelminthic (anti-parasitic) effects. Also a crucial herb for the production of the spirit Absinthe (hence the scientific name). Very easy to grow perennial, similar to mugwort in growth habit (they are both Artemisia after all..) beautiful silvery grey-green leaves shine in the morning light.

Photo credit: Agnieszka Kwiecień, Nova, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons