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Site Selection and soil preparation for perennials

Consider the site before selecting your plants. Although many perennials, such as ferns, tolerate heavy shade, most perennial plants require abundant sunshine. Air circulation is important for avoiding diseases; stagnant, warm, and humid air creates ideal conditions for diseases. Perennial plants also require properly prepared soil, and a few have specific drainage and fertility requirements.

Soil preparation for perennials is similar to soil preparation for annuals. However, you should devote some special attention to perennial bed preparation, because plants may occupy the site for several years with little opportunity to correct any problems. When possible, add sand and organic matter such as bark, peat, or compost to soils well ahead of planting time.

A layer of organic matter 3 or 4 inches deep, worked into the soil a shovel's depth, is usually adequate. Since different types of organic matter work and decompose at different rates in the soil, it is best to use a little of two or three kinds of organic matter than a lot of just one.

Soil testing provides specific recommendations for fertilizer and lime needs. Since lime lasts for several years depending on the type used, never add lime without a soil test. Many fertilizers, such as phosphorus, are best applied and mixed into soils before planting. Perennials need a balance of several nutrients, including nitrogen, phosphorous, and potash; most garden supply stores carry a wide variety of fertilizer mixes. Keep in mind that phosphorus, including that found in bone meal, lasts for several years and need not be applied regularly.

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Long, red radishes rise above the soil beneath leafy green tops.
Filed Under: Flower Gardens April 23, 2018

When I have visitors to my garden, I like to tell plant stories. It seems that almost everything I grow has a story associated with it. The stories behind the plants make them more interesting.

One of my favorite stories is about my White Profusion butterfly bush that I originally propagated in class in 1989. Another story is about my variegated Duet beautyberry, a mutation I found in 2000. I also grow a lot of heirloom vegetables, and the stories surrounding many of these varieties are interesting.

Spikes covered with small purple flowers extend from a green bush.
Filed Under: Flower Gardens April 16, 2018

One of my true favorites for the early summer season is coming soon to our Mississippi landscapes. Starting mid-May through June, this plant will have some of the few, almost true-blue flowers in the plant world. So what is this plant?

The common name is chaste tree or vitex, and it was named a Mississippi Medallion winner in 2002. The bloom period begins around Memorial Day on the Gulf Coast and soon afterwards in north Mississippi. The main flowering period lasts up to six weeks.

Several deep blue flowers line the upright stem of a plant.
Filed Under: Flower Gardens April 9, 2018

I'm becoming a fan of salvias for their performance in the landscape.

This group of plants has such a wide variety of selections available from annuals to perennials that I'm sure you can find the perfect plant for your garden. Today, I want to tell you about the salvias I'm growing in my own home landscape.

Rockin' Playin' the Blues salvia is a selection I grew as a trial last year, and it didn't disappoint. The plant produced beautiful blue flowers all summer long.

A white and pink honeysuckle flower floats in the foreground with green foliage in the back.
Filed Under: Flower Gardens April 2, 2018

There’s no doubt that spring is here when the Southern indica azaleas start to put on their show.

These showy -- some may even say gaudy -- flowering shrubs seem to just take over our southern landscapes before fading back into an evergreen supporting role for the rest of the year.

But this column is not about the beautiful Southern indica azaleas, which, by the way, are from Asia. This column is about a couple of azaleas native to Mississippi and other southeastern states -- the deciduous azaleas.

Clusters of bright red flowers are seen on a background of green leaves.
Filed Under: Flower Gardens, Landscape Design and Management March 26, 2018

I took a look at my landscape this weekend trying to decide how many plants, if any, I’m going to have to renovate or replace after our hard winter. I have to say I was really impressed at the regrowth so far this spring.

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Salvia
Southern Gardening

Salvia

Sunday, April 22, 2018 - 2:00am
Colorful Calibrachoa
Southern Gardening

Colorful Calibrachoa

Sunday, April 15, 2018 - 2:00am
Fancy Petunias
Southern Gardening

Fancy Petunias

Sunday, April 1, 2018 - 2:00am
Making Your Bed
Southern Gardening

Making Your Bed

Sunday, March 25, 2018 - 2:00am

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