Planting perennials in early Spring can be done when the soil warms to 50 degrees Fahrenheit. (Or when the Forsythia are in bloom!) When you are planting, remember to allow the soil to dry enough so as not to compact the soil. It should have some ability to “crumble” in your hand.
Can’t remember the difference between a perennial and an annual? Well, here is your answer.
A perennial, if in the correct zone, should come back every year. (every other year for biennials)
An annual is a plant or flower which needs to be planted each year.