Clemson Univesity Extension Service

Basil and Powdery Mildew

Jul 1, 2019

Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. In our old house we use an attic fan in the summer. That cool air is a blessing but with it comes humidity and some of my shoes are mildewed by the time fall comes. Mildews are aesthetically and economically damaging to some ornamental and vegetables crops. Powderly mildew made it hard for us to grow the  native Phlox paniculatas in hotter parts of the south and the indispensable summer herb, basil has been devastated by downy mildew..

Remontant Hydrangeas

Jun 29, 2019

Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. Summers in South Carolina can seem endless as autumn seems to come later and later each year. The phrase Endless Summer has a happier connotation, however, when it comes to a series of reblooming hydrangeas. The fancy word for reblooming is remontant, meaning a plant blooming or producing a crop more than once a season. The Endless Summer series are the first ever reblooming cultivars producing flowers on both old and new wood.

Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. Clemson horticulture agent Barbara Smith is one of the experts who answer plant problem and food safety calls made to Clemson’s Home & Garden Information Center, HGIC  for short. Each week she also shares through the Clemson HGIC free weekly email newsletter beautiful pictures of flowers or interesting plants she sees at the South Carolina Botanical Garden on Clemson’s campus.

Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. Clemson’s Home & Garden Information Center, or Clemson HGIC for short, is the “go to” site for researched-based information applicable to South Carolina. The selection bar includes the topics Landcape, Fruits & Vegetables, Indoor Plants, Food and Entomology, with subdivisions under each. Right now a useful fact sheet is number 2212, Tomato Diseases and Disorders, with helpful pictures and text.

Hydrangea Blooms

Jun 26, 2019

Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. Recently we had a caller whose hydrangeas didn’t have a single bloom although the foliage was lush and healthy and the plants got plenty of morning sun and had bloomed in past years. Our horticultural experts reminded viewers that some of the older varieties of bigleaf or French hydrangeas only bloom on last season’s wood --- the plants set flowering buds before the plants go dormant in the fall.

Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. Recently Terasa Lott asked the Making It Grow panel about viewer’s question. This person purchased and planted a hydrangea in April. She correctly sited the hydrangea to get morning sun and afternoon shade. But it quickly started having brown edges on some of those large, fleshy leaves, even though she had irrigation.

Ag and Art

Jun 8, 2019

Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. Clemson Agribusiness Agent Ben Boyers and his partner Strauss Shiple of the Old English District Tourism Commission have exciting events planned in ten South Carolina counties for each of the five weekends that we have coming up in June., Ag and Art Tours. Here is a quote from their website: The South Carolina Ag + Art Tour is a free, self-guided tour of farms and markets featuring local artisans at every stop!

Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. Elderberry stems are semi-woody, the interior is filled with pith. The late John Fairey, renowned botany professor at Clemson, told his students that this pith was collected and used to pack delicate scientific instruments and by repairmen to hold tiny parts of watches, back in the day when people actually fixed mechanically-run timepieces.

Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. Professor Greg Reighard, Clemson researcher and international fruit specialist, explained that elderberries are primarily wind-pollinated. Although the flowers are extraordinarily showy, which you think would be a sign that they are attracting all sorts of pollinators, don’t produce nectar so insect visitors are only be collecting pollen.

Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. Elderberries grow in Australia Europe, Japan, parts of south America and in North America into the far east coast reaches of Canada and across the entire United States. The species with black fruits, Sambucus canadensis are the ones we find in our part of the country, which is fortunate, as the blue berries are toxic. Actually, all parts of the plants contain toxic compounds but when heated the ripe black berries make delicious wine or a pie.

Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. Some people have horrible commutes; highways clogged with traffic and slow moving traffic even with speed limits of 70 miles per hour. My hour spent traveling from St. Matthews from Sumter is mostly a delight as I pass fields filled with row crops growing vigorously on those Fort , red clay enriched soils. Then I cross the Congaree and head into a long flat traverse with more fields and woodlands until I descend into  the Wateree flood plain.

Roses in Bloom

May 11, 2019

Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. A rose I thought was native that’s blooming now, I’ve always heard it called Cherokee Rose. Now I find out that this single white, high climbing rose, with the scientific name Rosa laevigata, is exotic, not native, and in some places considered invasive. Jonathan Windham, a specialist at the Pee Dee Research and Education Center in Florence, who provides information on genetically modified organisms, is also a rose enthusiast.

Rose Rosette Virus

May 10, 2019

Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. Knockout Roses took the South by storm as they bloomed happily without requiring treatment for black spot fungus. Sadly, they and other garden roses are falling prey to rose rosette virus. Infected plants can have reddish stems, misshapen leaves and stems, and other growth abnormalities. A tiny, 1/200dredth of an inch long, eriophyid mite spreads the virus if it feeds on your roses.

Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. A viewer wrote to us about a problem with her roses. I referred her to Clemson’s Home & Garden Information Center where horticulture experts take phone calls helping people with problems in their yard or garden. Just Search Clemson HGIC for that phone number and then press zero to get to a real, live person.

Rose Chores

May 8, 2019

Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. One of my favorite visits last year was to Pat Henry’s beautiful home in Laurens. You can see this segment by searching Making It Grow/YouTube/Pat Henry’s Rose Garden. Because of vole pressure, she forms a screen wire cage around each plant’s root ball before planting it. This fits in with her overall approach of growing roses without spending hours and hours fighting pests and diseases.

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