For years, I have received the enticing Kinsman Company catalog. The garden supply company is located in nearby Bucks County, PA.
Last month, I drove over to their warehouse and picked up a window box planter designed by Pamela Crawford and sold exclusively at Kinsman.
I’ve had my eye on Crawford’s line of side planting flower baskets and column kits for years. Take a look at them and you’ll see what I mean; it’s eye candy for gardeners.
Pamela Crawford came up with the simple, yet ingenious idea of pre-cut holes in coco liners. Plants are plugged in the pre-cut holes on the front and side. After two or three weeks, plants will cover the entire coco liner; the result is a very full and lush flower display.
I measured the brick window ledge and chose the 36″ window box which has a 9″ depth with height of 9 1/2.” It’s a sturdy frame constructed from heavy gauge steel bars generously coated with black plastic.
To install the window box in the mortar, John used 1/4″ Tapcon drill bits.
He drilled the proper depth of 2 1/4″. (Click here for a 10-second video.)
The Tapcons were slowly screwed into the mortar.
We hung the window box on the protruding Tapcons; the 36″ window box planter is the perfect size for the mudroom window facing the patio. Since John is a perfectionist, he got out the 4′ level. I said it wasn’t necessary but he insisted. The planter is definitely level!
I used a whole bag of Miracle-Gro Potting Mix (25 dry QT) for this project. It’s important to use a high-quality potting soil (don’t use garden soil). Potting soil is sterile, free from weed seeds and diseases. It’s blended with material such as pumice or perlite to provide good drainage.
I gently placed the potting soil in the coco liner so that I didn’t lose much out of the pre-cut holes; surprisingly, very little escapes.
Since we have hot summers I planted hearty and heat-loving vinca impatiens (annual). Vinca preforms well in hot conditions and is relatively drought-tolerant. Another benefit about vinca is that it blooms for the entire summer. It does well in full or partial sun. I chose white vinca because it goes well with the variegated brick. Vinca is available in a wide variety of colors such as red, dark red, pink, light pink, purple and bi-colors.
I bought a economy pack of vinca and divided the two plants to plug into the pre-cut holes. Since most plants are root bound when purchased, it’s necessary to loosen the roots before planting.
Certain plants do better in the pre-cut holes. This was another reason I chose vinca; it’s one of the plants that is recommended for the holes. Pamela Crawford recommends not using petunias unless they’re super petunias.
Each pre-cut hole has cuts around the circumference of the hole allowing extra room to plug in another plant. Also, by using draping plants such as sweet potato vine, the coco liner will be disguised.
After plugging in the vinca, I started by planting a White Diamond Caladium in the center of the coco liner.
I added several light pink geranium on each side of the caladium and filled voids with additional vinca. I topped off the coco liner with more potting soil leaving 1 inch below the edge to allow for watering.
After planting, I thoroughly watered the planter. I’ll add more vinca to the holes and sweet potato vine for a draping effect.
Window boxes are eye-catching gems which add charm to any house; they’re miniature gardens that can be changed from season to season. I plan to add a window box to every window in the house.