Annuals, Perenials and Bi-annuals
Im a beginner so bare with me on this. I wondered how to distinquish between recognising all of the above without having to read the label at the garden centre? Is their a hard and fast rule as to what will be an annual, perenial etc?
And more importantly what the major difference as to why a plant will only last one year wheres as bi - annaul can do another year and so on?