Sunday, October 25, 2026

Rye - Give It A Try?

 




                                    
                                            Dog Pee Fertilizer Program
                                           

    Rye on Asphalt
                                            Easy to Grow
                                            Rye Under Trees - Great For Shady Areas


                                           Rye Growing on the Door of Our Delivery Truck!



Horticulture Hotline 10/25/2026

By Bill Lamson-Scribner

 

Ahh, the fall - usually the threat of hurricane season comes to an end (fingers crossed), football season is in full swing, the weather is perfect, visits to our local gardens, parks, and plantations are awesome - oysters, anyone?

 

One big question to answer this time of year is do I want to grow ryegrass in my lawn, paint my lawn green, or let it go dormant? The football fields, soccer fields, baseball fields, and golf courses look so nice this time of year. Green grass all winter would be nice. Many of the people that live in Charleston now are used to green grass in the winter. If you are a little apprehensive, instead of doing the front yard where the whole world can see, try the back yard or a side yard. If you have active children or dogs (the other children), ryegrass can lessen the damage from traffic. Ryegrass does very good under the canopy of oak trees – just ride by The College of Charleston’s Cistern during the winter. (pictured)

 

While driving through neighborhoods, I see a lot of houses for sale. Ryegrass or green paint could separate your house from the multitude of other houses that are on the market.

For the very low cost of seed and fertilizer or paint, if you could sell your house one month earlier saving you a monthly payment, wouldn’t it be worth it? What about a year earlier?

 

Ryegrass has a bad reputation because people misapply it. I often get asked, “doesn’t rye kill my centipede (or St. Augustine)?” If you manage the rye correctly, you should have no problems.  

 

The 3 biggest mistakes I see with rye grass that give it a bad reputation are:

  1. Put out at too high of a rate, so it chokes permanent grass.
  2. Use cheap rye with lots of weed seeds and poor color.
  3. No fertilizer programs. Light green grass and no additional fertilizer so dog urine spots (dark green grass) become your fertilizer program (see picture)
  4. It is not managed in the spring chemically or culturally, so it competes with permanent grass while it is coming out of dormancy.

 

If you decide you want to put out ryegrass, now is the time to check your trusty application chart. Have you put out a pre-emergent herbicide this fall on your lawn? If so, when and at what rate? If you have recently applied pre-emergent products, you may want to try the paint or wait until next year. You could put out something to deactivate the pre-emergent so you could rye, but that will just add to your cost. If you decide to rye, putting a pre-emergent product in your beds will help to keep rye from popping up in your beds, saving you time and frustration.

 

If you are painting or not using rye, you can attack some of the nasty winter weeds that will compete with your turf grass next spring without having to worry about the rye grass. Painting will also capture heat that will help your grass “green up” sooner in the spring. Who wants to be “mowing weeds” late winter / early spring? Florida Betony and other winter weeds are visible now. Remember it is easier to kill them now when they are young and actively growing than to wait until they are flowering.

 

Three Possum’s Stores hot topic reports – vicious late season mosquitoes, winterizing fertilizers (use SeaHume, Possum’s Minors, 00-00-25, Cotton Burr Compost - stay away from winter fertilizers for fescue and bluegrass), large patch (I was trying to avoid saying large patch this week), moles (of course), pots / winter color, fire ants, Neem oil for shrubs, and mole crickets. Bring your soil to test now, so you beat the spring rush!

 

Always read, understand, and follow product label or hire a professional. The product label is Federal Law.

 

Bill Lamson-Scribner can be reached during the week at Possum’s Landscape and Pest Control Supply (follow us on Facebook). Possum’s has three locations 481 Long Point Rd in Mt. Pleasant (971-9601), 3325 Business Circle in North Charleston (760-2600), or 606 Dupont Rd, in Charleston (766-1511). Bring your questions to a Possum’s location, or visit us at possumsupply.com. You can also call in your questions to “The Garden Clinic”, Saturdays from 10:00 AM to 11:00 AM, or listen to the replay of Saturday’s show, Sundays from 11:00 to noon on 1250 WTMA (The Big Talker). The Horticulture Hotline is available 24 / 7 at possumsupply.com. 







Sunday, October 18, 2026

Cooler Weather - Yeah, Time To Winterize

 

Possum Minors and SeaHume Before Picture


                                           
                                           After Possum Minors and SeaHume



                                                 

Horticulture Hotline 10/18/26

By Bill Lamson-Scribner

 

The beautiful fall color has arrived in many parts of the United States. In the Lowcountry we will get yellow from the Popcorn Tree (a highly invasive species), the red from Virginia Creeper (nasty vine), more yellow from the Sweet Gum Tree (the tree with the medieval, spiked balls), and don’t forget the red from Poison Ivy. This year we seem to get a bonus red in mounds – the red imported fire ant mounds! The yellow flowers from Cassia and the red flowers from bottle brush always make a great fall color show! Japanese maples and their many varieties provide great fall color. The fragrant tea olive will add its wonderful scent.

 

Yes, it is time to winterize your landscape. SeaHume should be used alone or with the 00-00-25, depending on the results from your soil test. Look for a product with a 00 for the first number (nitrogen). A 00-00-25 with sulfate of potash and minors would be great. If you do not need the potash, consider just SeaHume, a wonderful combination of seaweed and humic acid. If you would like your yard to stay green later in the fall, try Possum Minors along with SeaHume (this combination is illustrated in before and after pictures).

 

Possum Minors as its name implies is full of iron and other minor nutrients that promote ‘green ‘without top ‘growth’. By having your plants, including grass plants, green at this time of year the leaves can capture more sun and produce more carbohydrates to grow roots. Since the mowing has slowed down, you will be able to enjoy the ‘green’ for a longer period, since the ‘green’ won’t be getting mowed off. 

 

SeaHume will help grass, trees, shrubs, and flowers throughout the winter. SeaHume will help mitigate salt damage. The seaweed part of SeaHume has over 60 minor nutrients, carbohydrates, amino acids, gibberellins, auxins, cytokinin’s, antioxidants and other bio stimulants. The humic acid is also full of bio stimulants that help make nutrients that are in the soil available to the plant, help with soil structure, grow roots, and feed the microorganisms in the soil.

 

Trees grow most of their feeder roots over the winter. SeaHume will help grow these feeder roots over the winter preparing the tree for whatever the spring weather brings. Drought like this year?

 

Beware of the national ad campaigns talking about winterizing fertilizers for turf. These products are usually formulated for cool season grasses (rye, fescue). I saw one over the weekend that was a 32-00-10. Not exactly what we want to put on our yard in late-October in the Lowcountry. Just ask Clemson University.

 

Have you ever had winter kill? Now is the time to prepare your grass for the wide variations in temperatures we have. If you had winter kill in the past, you need to be sure to correct low and poorly drained areas, reduce thatch in the yard, increase air movement in low areas, keep your lawn hydrated and feed (with the right food for the winter).

 

Mow your grass lower than normal (centipede 1.0 to 1.5 inches, St. Augustine 2.5 to 3.0 inches). By mowing your grass lower, you will increase the air movement around the crown of the plant, so cold air will not settle at the crown of the plant and damage the grass. In Florida helicopters fly low over citrus groves that are in valleys to get the cold air out. Tall grass or thatch will insulate the crown of the plant like a goose down jacket, keeping the cold air near the crown where it can cause winter kill. Centipede lawns usually get winter kill the worst if temperatures plummet quickly.

 

Fine blade Zoysia grass can grow very dense and get thatch. De-thatching, aerating and verticutting are great cultural practices while the grass is actively growing. This time of year, using Bio Grounds Keeper, SeaHume and very light topdressing of Cotton Burr Compost should be part of your maintenance schedule.    

 

Moles? Armyworms? Winter flowers for pots? Mosquitoes? Mole Crickets? Mice? Rats? Roaches?
Custom Program Based On a Soil Test From Your Landscape?

 

Always read, understand and follow product label. The product label is Federal Law.

 

Bill Lamson-Scribner can be reached during the week at Possum’s Landscape and Pest Control Supply (follow us on Facebook). Possum’s has three locations 481 Long Point Rd in Mt. Pleasant (971-9601), 3325 Business Circle in North Charleston (760-2600), or 606 Dupont Rd, in Charleston (766-1511). Bring your questions to a Possum’s location, or visit us at possumsupply.com. You can also call in your questions to “The Garden Clinic”, Saturdays from 10:00 AM to 11:00 AM, or listen to the replay of Saturday’s show, Sundays from 11:00 to noon on 1250 WTMA (The Big Talker). The Horticulture Hotline is available 24 / 7 at possumsupply.com. 

 

Monday, October 5, 2026

Army Worm Weather

 

                                                      Army Worm - Pain in the Grass

                                            Wasp Eating Army Worm - Bite Marks on Leaves
                                            Controls Mosquitoes and Army Worms




By Bill Lamson-Scribner

Horticulture Hotline 10/03/26

 

Some situations keep coming back year after year. A few topics that I wish I could take a few years off from writing about are moles, army worms, sod webworms, mosquitoes, large patch fungus, gray leaf spot, chinch bugs, nutrient deficiencies, weeds, heat, drought, vines, fire ants, lace bugs, rats, flies, fleas, termites and roaches; however, these topics seem to be dominating the question counters at the three Possum’s year after year.

 

One great thing I experienced this week was my favorite fragrance in the landscape – the sweet tea olive. Not only a great fragrance but for me it usually means cooler weather has arrived!

 

On a not-so-great note the cloudy weather we recently had gave great cover for the army worms to appear. We have had reports from all over the Lowcountry and even the beloved Possum’s North was attacked. Not too smart – dead army worms now!

 

Army worms will affect the aesthetic value of the green grass on athletic fields, golf courses, and home lawns, and the worms thin the canopy of the grass. They can cause economic damage in hay fields, corn fields, and other crops. Prostrate growing weeds like spurge, doveweed, lespedeza and Virginia Buttonweed seem to come in the fastest on home lawns..

 

The army worm adult moth can lay over 1000 eggs. She usually lays them in groups of 50 to several 100. The eggs hatch in 2 to 10 days. The larva then eats your grass for 14 to 21 days before they return to the soil and pupate. New egg laying moths emerge in 10 – 14 days. With several hundred larvae eating your grass at once, you can imagine how quick army worms can ruin your grass.

 

What bothers me the most is you work all summer on your grass to have it look nice, and once the grass starts to slow down for the winter, fall army worms and then sod webworms attack the grass. Look for areas that appeared to have been mowed low and with a dull blade. You can see that the leaf blades have been chewed. Also thatch type debris will be churned up on the surface. Birds and low flying wasps are also predators of army worms, so they can be an indicator that you are under attack.

 

Since army worms are in direct contact with the ground, they are very easy to control. Bug Blaster, Bifen, Mosquito Pro, Cyonara and Acephate will all put a hurting on army worms. Thuricide (Bt), EcoVia EC and Spinosad are organic products that will also work well if you get them while the worms are small. Since the population of worms is so high and hit so hard, keep your eye out for a second hatching.

 

Watch for moths in your yard around dusk. If you begin to see a moth that gets out of the grass, flies for 6-10 feet then lands again (like a bobwhite quail for you bird hunters) you may want to consider using one of the above-mentioned products.

 

We just had a wind event that came up from the south. The moths of these worms will often catch rides on wind currents from areas that they are active year-round. Watering first to bring the worms to the surface and applying products in the evening when the larvae are about to feed, will often help your success depending on the product.

 

Now is the time to put out preemerge products in the lawn and beds to prevent those small seeded annual weeds. Henbit, chickweed, Poa annua (annual bluegrass), cudweed and lawn burweed are a few of the winter weeds that would like to occupy your lawn and flower beds. Poa annua (the green grass that is very visible in February and March) and lawn burweed (the prostrate growing weed that develops a sticker) are usually the most hated of the winter weeds. Some people use profanity while describing them at the counter of Possum’s! 

 

With all the recent rain fall, cooler temperatures, and shorter daylight hours large patch fungus is becoming a big issue. Use fungicides preventively to save money and aggravation. Now is also a good time to identify any drainage issues.

 

The “nasty rascal the chinch bug” is still sucking the life out of many lawns. Gray leaf spot is still alive and doing well. With the rain, fire ants are mounding up everywhere – be careful where you step! With the high tides and rains mosquitoes are out and biting, especially in the evening. Rat trap and roach control products are exploding at Possums – they want to get out of the cool weather and rain too!

 

Always read, understand and follow product label. The product label is Federal Law.