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Perennial Propagation

Though most perennials may take a couple of years to flower from seed, many are as easily started as annuals. The quickest way to have blooming plants, however, is by vegetative propagation, such as by dividing old plants or rooting stem cuttings. Plants produced vegetatively have all of the traits of the "mother" plant. Propagation by division may seem difficult at first, but most gardeners find that dividing crowns and roots and separating bulbs takes very little experience and can be mastered quickly. Try dividing monkey grass for experience; then move on to daylilies, and before long you will have the hang of it.

Perennial plants with shallow roots are easily pulled apart by hand. Long fibrous roots can be pulled apart with a hand fork. Thickly intertwined roots may need more forceful separation or cutting with digging forks. Replant only those segments with strong roots and a few intact leaves or crowns.

In general, it is best to divide perennials during their dormant or "off" season; divide spring bloomers in the fall and fall bloomers in spring. Some perennials may need dividing every 3 or 4 years, or they will slowly crowd themselves into clumps of nonflowering leaves and roots.

Many perennial plants may be propagated from stem cuttings, which does not disturb the plant's roots. Take stem cuttings during the spring or early summer, choosing stems that are mature and firm but not yet hardened and woody. Cut off 4- to 6-inch segments using a sharp knife or shears, and pinch off the succulent tip and any flower buds to force the cuttings to concentrate their energy on producing roots. Remove the lower leaves that will be below the surface of the rooting medium, but leave a few leaves to provide a source of energy for root initiation and growth.

Because of disease or weather conditions, cuttings often will not root directly in garden soils. They may be easily started in a pot containing a porous, well-drained rooting medium, such as a 1:1 mixture of perlite and peat moss. Coarse sand and vermiculite are also used as rooting soils. These mixtures will hold moisture and yet allow drainage for air circulation. Root-stimulating compounds, including those that contain fungicides, are available at most garden centers. Using a blunt stick, pencil, or finger, open a hole in the rooting medium and insert the treated cutting. Firm the medium around the cutting and water in well.

Many commercial growers use a mist bed to keep cuttings from wilting, but this is usually not feasible on a small scale. You may easily construct a humidity tent from plastic film loosely draped over a frame covering the cuttings. Place the tent in bright light, but prevent overheating by making sure the tent is not located in direct sunshine. Keep the plastic loose to allow air circulation. Avoid direct contact between the leaves and the plastic. The tent will serve as a tiny greenhouse and will maintain a good rooting environment with daily light watering. Rooting often occurs within 3 or 4 weeks. By the time new leaves begin to appear on cuttings, roots are usually formed. Remove the plastic tent and water regularly until plants are firmly established.

Transplant newly rooted plants into prepared beds or pots and place in a bright, protected area until you are ready to set them into your garden or share them with others.

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A flower garden with raised beds.
Filed Under: Flower Gardens, Insects-Ornamental Plants December 1, 2021

A grant from Coast Electric will allow for a renovation of the Mississippi State University Crosby Arboretum’s pollinator garden. Pat Drackett, director of the arboretum, said the pollinator garden was established in 2001 as the Explorers’ Garden. It is a 3,000-square-foot space with a variety of native and other plants that helps teach visitors how to create havens for pollinators.

Frost on a plant.
Filed Under: Lawn and Garden, Flower Gardens, Trees November 30, 2021

It’s hard to believe we will be closing out another year at the end of the month. If you’ve followed our monthly garden checklist, we know it’s been a busy year for you! Staying on top of the chores in your yard and garden is quite the undertaking, but isn’t it rewarding? To wrap up the year, here are a few things to take care of:

A head of cabbage grows in a garden.
Filed Under: Flower Gardens November 29, 2021

Even though I still have tomatoes and peppers producing in my home garden, I know these summer vegetables are on borrowed time. While I like being able to harvest tomatoes on Thanksgiving, it’s the time of year to appreciate the great cool-season vegetables we can grow.

A yellow bloom.
Filed Under: Flower Gardens November 22, 2021

This Thanksgiving week, I’m recovering from a particularly nasty infection in my leg. I’m not looking for sympathy, but it has given me the opportunity to think about what I’m thankful for in the garden and landscape.

This past weekend, the weather was glorious on the Coast, and I hobbled through my garden, which I hadn’t seen for a week.

Red, yellow and red flowers bloom in a raised bed.
Filed Under: Flower Gardens November 15, 2021

When leaves fall and landscapes begin to look bare for winter, it can be easy to think it’s time to stay indoors. But fall is the ideal time for a variety of landscape chores. One job for chilly weather is planting and preparing for spring-flowering bulbs. This is an optimistic chore, as you get to prepare for blooms and beauty months away.

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