Hey Dawn...I think it might be a good idea to bring your Ylang Ylang tree indoors for the winter. The reasons why I say this is because the tree will start to suffer when temperatures dip below a daily average of 50F. Also, the tree (although it is a very fast growing tree and can get rather tall) is adjusted to thriving under shady forest canopies. I would still recommend it receives as much light as possible indoors. It may survive in some shade, but it truly thrives in full sun. As for soils, the Ylang Ylang tree is extremely adaptable, but if it does not have access to a good amount of nutrients in the soil, it will do best with acidic soils. I would recommend either an acid-loving water soluble fertilizer, citrus fertilizer or an all around fertilizer. I hope this is helpful. Cheers! Robby