Phyllobates Terribilis is one of the most toxic animals on the planet. But also a very popular animal to keep at home. When in captivity, they are not toxic at all because they get their poison from the bugs they eat in the wild. So maybe don't let them run free in your greenhouse...
The plant in the background is a Strychnos toxifera which is one of the plants that is used to make poison darts to keep indigenous people safe from jaguars that may be lurking in the jungle. If you keep this plant in captivity, it will always be toxic.
Title: Non-Toxic Terribilis