This is Dracaena marginata and is a low maintenance plant that can be grown as a house plant Indoors or grown outdoors in the shade. Indoors it grows best in bright light and should only be watered when the top inch of soil feels dry to the touch. Originally native to East Africa, but now commonly grown globally in mild climates. Do not allow plant to sit in water as this may lead to root rot. Feed with a slow-release or organic fertilizer formulated for indoor container plants. Repot yearly or when the pot tips over because it is top heavy. When it reaches the ceiling, consider air layering the top to make another plant.
According to the ASPCA, all dracaenas are toxic to cats: https://www.aspca.org/pet-care/animal-poison-control/toxic-and-non-toxic-plants/dracaena. In case of ingestion, a veterinarian should be consulted immediately because we cannot guarantee identification from a photo or a timely enough response. There is a poisonous plant database here: http://www.aspca.org/pet-care/animal-poison-control/toxic-and-non-toxic-plants. There is also an animal poison control number listed here: http://www.aspca.org/pet-care/animal-poison-control but there may be a $65 charge.