Everything of this kind we work with in our London studio – how to recognise it and how to look after it.
Keep as a house plant, not a cut flower – do not place stems in water on their own. Water by soaking the bark or roots once the mix is dry, then let it drain fully; avoid waterlogging. Keep away from direct sun and draughts, in bright indirect light at room temperature. Dyed colour will not regrow in new flowers or leaves.
Some of them are. Keep the bouquet out of reach of cats and dogs.