It seems to be a common field where every degree of taste and refinement may unite and find opportunities for their gratification.
Perennial plants live several years.
Because they must reserve their energy to survive from year to year, their period of bloom is typically shorter than that of annuals, which bloom continuously throughout the summer. Consequently, a perennial border provides special design problems to the garden planner. Calculating progression of bloom and coordinating height, texture, color and form for the borders is an art requiring infinite planning and know-how. The Botanical Gardens' two perennial borders were part of the initial garden design. The original plantings were primarily tulips and daffodils.