Susan Romanoff is creative director at Gardener's Supply.
Annual rex begonias, Euphorbia 'Diamond Frost', silver-trailing dichondra and a sedum rosette flourish in carved hypertufa trough. Top a shady step with Caladium 'Miss Muffet', Begonia 'Red Planet' and red-flowering Begonia 'Tiny Gem'. Growing no bigger than your palm, dwarf hostas excel in part-shade dish gardens with creeping phlox, moss, baby's tears, and hens-and-chicks. Imagine a full, lush landscape in less than three square feet. This antique metal planter contains five different miniature hostas, a dwarf chamaecyparis shrub (center), five different creeping sedums, selaginella moss, baby's tears, and spiky blue-eyed grass (sisyrinchium), top right corner. Dwarf plants create the look of a full-sized garden in a stone bowl. Clockwise from top left: dwarf chamaecyparis, hosta, holly, hosta, fern (Asplenium tricomanes) and two more miniature hostas. Purple-flowering creeping thyme, hens-and-chicks, sedum and other drought-tolerant plants create a low-maintenance container garden. This container is made from a recycled styrofoam cooler that has been coated with a concrete mix. Grouped planters and found objects make a garden on the patio. Low-maintenance plants with soft color and texture include sedum in the bunny, dwarf heuchera, selaginella, and hosta (clockwise). Begonias and caladiums in background bowl. Create a meditation garden with miniature plants. The shady location under a tall tree is ideal for Japanese maple, fern (Asplenium tricomanes), mossy stones, dwarf liriope, and mini hostas. Sedum textures and colors add a focal point to an otherwise boring wall. These drought-loving plants thrive in the hot sun. Small alpine plants that naturally grow in gravelly soil do well in stone and hypertufa planters. (Photo: Susan Romanoff. From the Chelsea Flower Show.) Irish moss lends a splash of chartreuse to a planted trough and brightens the darker greens of sedum, dwarf fir and boxwood. Background flowers are campanulas. Dwarf evergreen shrubs grow well in hypertufa and stone planters, especially in climates where they can be protected from severe winter cold. Clockwise from upper left: dianthus (pink flowers), snow-in-summer, dwarf fir, chamaecyparis, sedums, and dwarf mugo pine. Taken at Iseli Nursery in Oregon. Hypertufa planters lend themselves to indoor displays of succulent houseplants. Clockwise from upper left: echeveria, jade plant (crassula), haworthia in center, peperomia and silver-leaf kalanchoe. Hypertufa planters make ideal homes for water plants, too. This bowl of papyrus and water lily is surrounded by yellow-flowering corydalis and purple Persian shield in the upper-right corner. Add a few guppies for mosquito control. Tuck a tufa planter into the edge of a pond or water garden and add a colorful red cobra pitcher plant. Water lettuce and ribbon grass in background. Water plants tucked into a concrete bust include trailing bacopa for hair and a water lettuce bow. Taken at the Koi and Pond Show at the Big E in Massachusetts. Shallow stone or hypertufa planters make perfect watering holes for birds and butterflies. Tuck a small plant, like this begonia, into a small pocket in the side.
Photos: Ann Whitman
1 part Portland cement
1.5 parts peat moss
1.5 parts perlite
Tub for mixing ingredients
2 cardboard boxes, approximately the same shape, but one about 2" smaller than the other all the way around.
Recent visits to flower shows around the country remind us of how much we love hypertufa planters. The material has an ancient, hand-hewn quality; a perfect home for plants that you might find nestled into crevices in a rock garden, such as alpines, succulents, mosses and even tiny evergreens.
Hypertufa is a versatile and strong material that you can mold into your desired shape. Working with hypertufa is a messy endeavor, but those of us who reminisce about the pleasures of making mud pies will appreciate this opportunity to indulge in a childhood pastime while creating a custom planter with an instantly antique character.
We found step-by-step instructions in an article in Fine Gardening by Michelle Gervais. We have adapted the instructions for our project; you can find the full instructions in the article, Make a Hypertufa Trough.
A couple of friends and I gathered our ingredients and followed the recipe and directions below. Once we had all of our materials, it took about two hours to complete several containers. They require several days to cure before they can be planted.
The basic ingredients for hypertufa are readily available at home improvement stores and garden centers. They include peat moss, perlite, and Portland cement. Fine Gardening recommends reinforcing fibers in their ingredient list, but we chose to omit these from our mixture. So far, our containers have held up to freezing temperatures.
Step 1: Mix 1 part Portland cement with 1.5 parts each of peat moss and perlite in a large tub. Add just enough water so that when you form a ball in your hands and squeeze it, it holds its shape and little or no water drips out. Step 2: Pack the hypertufa mixture into the bottom of a box in a 2” thick layer, creating the floor of your container. The size and shape of this box will define the exterior footprint of your container. Step 3: Insert a smaller container inside the larger box, on top of the base layer of the concrete mixture. The difference in the sizes of the boxes determines the thickness of the walls. Ideally, the walls should be at least 2” thick—even thicker for larger containers. Step 4: Fill and pack the gaps between the boxes with the hypertufa mixture. Step 5: Wrap your mold in plastic and keep in a shady location overnight. Remove the plastic and allow to cure for another few days before planting. Step 6: Plant! I chose maidenhair ferns, moss and small hostas.
Assembly instructions, diagrams and other types of product information are available on product pages. To find it, search for the product, go to the product page and click on the "How-To and Instructions" tab.