These are the dumbcane species I have in my garden. I realise now that these are now known as Dieffenbachias and the common name "dumbcane" seemed to be slowly fading. What a strange name for a plant, later I found that its because the name commemorates Ernst Didffenbach, a German physician.
I started liking dumbcanes because of their variegated patterned leaves. There seemed to be some new species sold in supermarket for a very affordable prices in every few months. These are my favourites. I have yet to identify their specific names but then, its ok (They all represent like birds of a feather)
If you have the intention to have a white or cream coloured theme garden, do choose these. They are hardy and easy to maintain. They can also able handle neglect when not watered for few days. I guess the cane stores the energy & food supply.
Though they are beautiful, these are touch me not type of plant. The leaves are poisonous & may cause rashes. I had suffered burning sensation on my hands when I was trimming the excess roots as I was replanting it. Watch out for the milk sap.
Do keep them in distance where you would not brush when come in contact when walking in the garden. In the morning, water droplet form at the tip of these leaves. Those too are poisonous. I would not recommend them to use their leaves for flower arrangements, unless its more likely placed in area where is it seem but not touched.
Probably I like the idea of danger in my garden. Like having carnivores plants, poisonous but beautiful flowers. If you do, I strongly suggest not to plant a herb or vegetable plant beside these. You don't want to consume some tomatoes or greens and find that you loose your voice.
I got more information about this plant in my blog which I don't want to repeat myself here.
Do check on here for more info: Dumbcane