My son has just consumed some of this which I believe to be Zz plant and looks be poisonous. Can anyone advise please? This is how to collect my dahlia seeds., Now, dahlias are far easier to grow from a tuber, so not many people trying growing them from seed, but every single dahlia I have in my garden (except for my Amazon.com : Outsidepride Rainbow Mix Coleus Seeds for Planting 5000 Pcs Annual, Compact, & Easy to Grow, Flower Seeds with Serrated Foliage, Ideal for Shaded Areas, Containers, Borders, & Gardens : Oceana Modern Indoor Pot Potanical Black Dahlia Flower 35+ Non GMO Dahlia Flower Seeds Fast Growing Annual For Garden & Containers Dahlia Seeds