The growing of any unknown greenery in a place where it does not normally grow such as a house or masjid, suggest that a man will come along either to seek in marriage the hand of his daughter or to establish a business partnership.
To feel that you are unknown, denotes that strange things will cast a shadow of ill luck over you. See Mystery. ... Ten Thousand Dream Interpretation
If the person is ugly or fearsome then you luck will turn bad.
If you are the unknown person (no one recognizes you) in your dream then this is an omen of evil befalling you.... Tryskelion Dream Interpretation
2- When we are conscious of the unknown in dreams, we should try to decide whether it is threatening or whether it is something we need to know and understand. It is the way we handle the information rather than the information itself which is important.
3- The hidden or the Occult remains both unknown and unknowable unless we have the courage to face it. This we can often do in dreams.... Ten Thousand Dream Dictionary
If you are the unknown person (no one recognizes you) in your dream then this is an omen of evil befalling you like a cloud.... Encyclopedia of Dreams
If he sees such a horse entering his neighbourhood or house it means a powerful and honourable person will make his appearance in that neighbourhood or house.
If he sees such a horse leaving such a neghbourhood or house it means a man with same qualities mentioned above will leave the neighbourhood or house either by way of going away for good or death.... Islamic Dream Interpretation