It is best to plant lilies in the fall but you can plant them in spring.
Surprise phantom lilies develop from a seed. Most lilies are perennials, which means they are present during all seasons of the year.
Spring.
in the spring
Iris and lilies
summer!
Springtime, of course
Anytime of year, it doesn't really matter.
Not possible to answer without more infomration. Depends on the crop or plant, the size of the plant, the time of year and of course the formulation of the fertilizer
Depends on the type of plants.
late April
Yes. Easter lilies can be planted outside after all danger of frost is passed. They are likely to come back every year. For information about caring for your Easter lily the first year, see the Related Link.
it depends on the plant you grow a tree would take much longer but a plant would not take as much time