There couldn’t be a better time to talk about planning a perennial garden.
We’re spending more time at home, so we’re looking for ways to brighten our surroundings. Perennials are a sort of horticultural jigsaw puzzle where every part is integral to the success of the final product. Planning is critical.
The old adage is “if it blooms in the spring, you transplant it in the fall, and if it blooms in the fall, you transplant it in the spring.” That includes spring-flowering bulbs like daffodils and tulips, so they get stirred into the mix as well.
Iris and daylilies are two more common spring bloomers. Their transplanting time is near at hand. So it’s obvious that there is plenty to discuss about perennial gardening right now. Let’s get started.
Ensuring that it looks good at all seasons
Almost all perennials have a peak bloom time at some point during the year.
For those two or three weeks they are absolutely beautiful. For most of the rest of the year, though, they range from semi-attractive to somewhat unsightly.
You make allowance for that by planting perennials among evergreen shrubs that can pick up the slack in the “off” seasons. You also use an assortment of different types of perennials to ensure that you have a continuum of bloom. Where necessary, you interplant with annuals to fill in the voids.
Siting the perennial garden
Most perennials grow and bloom best in full or nearly full sun. If you have the choice for your perennial garden, a sunny location will always be best. However, if all you have is shade, there still are some nice choices for your consideration.
Since most perennials die back to their roots in wintertime, the most effective way to use them will probably be out in the landscape away from the house where you can back them up visually with evergreen shrubs.
That way, when they are dormant, you’ll still have an attractive backdrop. You can also use them in small pockets of color within the structural framework of your home’s landscape, for example near the front door.
Just keep in mind that each type of perennial will only be in bloom for a few weeks.
Planning the plantings
Think of your perennial plantings on a season-long basis. Consider your color schemes through the various months.
For example, you may want bright and cheerful spring colors in March, April and May. When warm weather arrives in the summer you might switch to cooling shades of blue, purple and dark reds. Then, as temperatures fall in autumn, you could see a change to the rich reds, oranges and yellows.
You need to plan your perennials accordingly so that you have the right things in bloom at those times. It’s disconcerting to have a fiery hot yellow perennial blooming in the middle of cooling purples in mid-July.