The Year of the Window Box: The Garden Guy's 180 days of bountiful box blooms

Norman Winter
·3 min read
These copper window boxes were planted with Superbena Stormburst verbena, Superbells Tropical Sunrise calibrachoa, Diamond Snow euphorbia, summer snapdragons and geraniums. Fertilized, pinched or pruned every two weeks, they bloomed for 180 days. Photo taken in May.
These copper window boxes were planted with Superbena Stormburst verbena, Superbells Tropical Sunrise calibrachoa, Diamond Snow euphorbia, summer snapdragons and geraniums. Fertilized, pinched or pruned every two weeks, they bloomed for 180 days. Photo taken in May.

November 1 marked the conclusion of a group of the warm-season window boxes created by son James and partner Anthony of Eden Estate Management in Columbus, Georgia. As best as I can calculate, this has been a terrific 180-day display of what I have been calling the "Window Boxes of Yore."

I gave them this moniker because they had a look that was special. The boxes made of copper with metal framing gave that feel of nostalgia. Oh, James and Anthony did magazine-worthy wooden window boxes, and planter boxes elsewhere, but these were exceptionally blooming nonstop on one of the hottest west Georgia summers anyone can remember.

A while back, I was getting a brake job done at a repair place, and I gave the attendant my name and he looked at me and said, "You are the one with the garden Facebook page, I follow you!" He then said I am waiting on some top soil for my boxes. As gently as I could, without hollering, I tried to steer him away from that, directing him toward potting mixes.

The window boxes have hidden irrigation and are fertilized and pinch or pruned as needed every two weeks. This photo taken June 7 shows an explosion of growth.
The window boxes have hidden irrigation and are fertilized and pinch or pruned as needed every two weeks. This photo taken June 7 shows an explosion of growth.

Window boxes, planter boxes and virtually all containers need premium potting soil. Eden Estate Management uses the best professional grade potting mix they can buy. I asked James about the drainage holes in the copper and he said he got out the drill and added more. That is his modus operandi on all boxes. Fill your window box about half way, place your plants in their positions and add soil to the top of the root ball. Lastly, an irrigation system with small tubing and tiny mist emitters is put into place.

If you have hopes of a showy window that will last for six months, your plant selection is critical. Most everyone will talk thriller, spiller and filler, or tall, small and fall, followed by instruction on color and texture. Certainly, remember those suggestions, but think also about tough-as-nails, award-winning plants too. If the plants you choose are winning university trials, you know your chances of success will be increased.

By mid-July the Superbena Stormburst and Whiteout verbenas have taken center stage with their large flowers.
By mid-July the Superbena Stormburst and Whiteout verbenas have taken center stage with their large flowers.

The ‘Window Boxes of Yore’ featured two Superbena verbena varieties, Stormburst and Whiteout. There were also Superbells Tropical Sunrise calibrachoa, Luscious Royale Cosmo lantana, Diamond Snow euphorbia, geraniums and summer snapdragons, too. Of course, they took advantage of creating repetition in the design like you do in the landscape.

The client’s boxes were on a two-week maintenance where James and Anthony would selectively hand prune or pinch, fertilize and check on irrigation. This triggered new growth and repeat blooming until the day they were pulled for cool season color. Just like your beds at home, the flowers would go in and out of bloom cycles but not all at the same time. I give you examples of this through the photos.

There is a high probability that the boxes would have been dazzling at the 210-day period, maybe even longer, which you might select to do at your home. But in the commercial world once the green industry has switched to Christmas, your choices in cool season transplants drop substantially.

Early October shows the summer snapdragons at peak with all other flowers beginning a new fall flush of blooms.
Early October shows the summer snapdragons at peak with all other flowers beginning a new fall flush of blooms.

Though there is no such designation, I would encourage the powers-to-be in the garden world to designate a Year of the Window Box. Until then, I’ll do it. Norman Winter, The Garden Guy, designates 2024 ‘The Year of the Window Box’. Plan now that you will do it too and send your photos to nwthegardenguy@gmail.com, please identify your plants, and I'll share them to the world.

So, with that in mind I hope you will make 2024 the year you get on board, it will transform your home to a real garden, and put a happy spring into your step.

Follow Norman Winter on Facebook @NormanWinterTheGardenGuy for more photos and garden inspiration. See more columns by Norman at SavannahNow.com/lifestyle/home-garden/.

This article originally appeared on Savannah Morning News: garden guy how to plant window boxes for 180 days of blooms