Is Brazilian iron poisonous? Will it bloom?

Brazilian iron, also known as Brazilian wood, Brazilian Millennium wood, dragon blood tree, fragrant Millennium wood and so on. It's an evergreen tree of agavaceae.

The leaves are green, and there are often various stripes on the leaves of its varieties, such as Dracaena in Phnom Penh, Dracaena in Jin Xin and Dracaena in Yinbian.

Like warm and humid, like light but shade-tolerant, can be cultivated indoors. Flowers should be non-toxic.