Gardening in Dry Climates

Gardeners in climates where summers are dry {or those in other areas who are looking for low-maintenance plants} can still have plenty of flowers. Choosing the right location for the garden will help.
Here are some tips:
* Site the garden where it will get some shade during the hottest part of the afternoon.
* Avoid planting your flowers on sloping ground that drains quickly.
* Do not choose a location with very windy conditions.
* Plant as far as possible from trees with shallow root systems, such as maples, which steal moisture and nutrients from the surrounding soil.
* Add mulch to help conserve moisture and keep the soil cool.
* Position the thirstiest plants closest to the water source.
Some plants that ordinarily grow best in full sun when the soil is rich and moist will manage in drier soil if they receive some shade during the day. The hotter the climate, the more these sun lovers will appreciate some shade, especially in the afternoon. Some of the perennials that behave this way are Lady’s mantle, Japanese anemone, bergenia, columbine, purple coneflower, peach-leaved bellflower, snakeroot, bleeding heart.
Plants for Dry Gardens:
 
Perennials especially good for dry, sunny gardens include yarrow, butterfly weed, coreopsis, globe thistle, amethyst, sea holly, gaillardia, Oriental poppy, penstemons, balloon flower, black-eyed Susan, and sedum “Autumn Joy”. Hollyhocks, golden marguerite, artemisia, baby’s breath, candytuft, rose campion, sundrops and other evening primroses, lambs ears, and yucca can also resist a fair degree of drought.
Annuals that can withstand hot, dry conditions include annual coreopsis {C. tinctorea}, bachelor’s buttons, cosmos, Dahlberg daisy {Dyssodia tenuiloba}, morning glory, portulaca, snow-in-the-mountain, sunflower, California poppy, Mexican sunflower {Tithonia rotundifolia}, strawflower, spider flower, and zinnia.

Summer Gardening.

In summer, annuals combine with perennials and summer bulbs to provide a nonstop show of color.
And this can be an almost instantaneous show if you buy annuals as nearly full-grown plants from a garden center. Many perennials flower lavishly in late spring and early summer, and some, such as coreopsis, will continue blooming sporadically through much of the summer if you regularly dead-head them {remove their spent flowers}.
Summer is the time when the cutting garden is at its height. Pots, planters, and window boxes spill over with glorious hues of easy-to-grow geraniums, marigolds, and other annuals. You can group lots of containers on a deck, patio, or other outdoor living space to create a lush garden right where you like to picnic, read, or entertain in pleasant weather.
Summer is also the season for special kinds of gardens. If you like to spend time in your garden in the evening, you can plant some flowers that open or release their fragrance when the sun goes down. Or you can create a garden for a particular location, that’s dry or shady, by planting flowers that thrive in those conditions.
Summer offers a whole palette of brilliant as well as softer colors for the garden and for fresh bouquets.
This is where we will spend some time on this blog first, we will look at summer colors and a selection of the plants that make up the color palette for outdoor plantings and indoor arrangements. We will also address special kinds of gardens in containers, for fragrance, for nighttime enjoyment, for shade.
And because annuals play a special role in the summer garden, you’ll find guidance for them, too.

Water-Wise Gardening Techniques.

You can save water and still have a beautiful garden.
All it takes is noting moist and dry areas of your property and choosing the right plant for the right place.
Think of your yard as radiating outward from your house like a bull’s eye target. The wettest areas are closest to the house particularly around outdoor faucets where water drips, and the next wettest area is within reach of a 50- or 100-foot garden hose. Beyond the reach of your hose are the driest areas.
For efficient water use and healthy plants, grow water lover’s like ferns and woodland perennials near the house, and select drought-tolerant perennials with deep roots that can reach groundwater, such as coneflower, rudbeckia, and ornamental grasses, outside the reach of your garden hose.
If you live in a mild-winter climate, consider water-conserving garden plants that are native to South Africa, Australia, and the Mediterranean. Or select plants that are native to your region, which is naturally adapted to your local soil and rainfall.

These Drought-Tolerant Perennials Help Save Precious Resources.

Why drought-tolerant perennials? Growers want to save time and money on watering. Garden centers and homeowners want the same. Ever worked in a garden center in July? How much fun was it to water the perennials? It was miserable, wasn’t it? Once these perennials are settled into their new growing environment — whether it’s a 50-cell tray or a new garden, you’ll see how little water they need. Many growers are capturing and reusing water for less impact on the land, and many homeowners live in areas where watering restrictions are common.
Here are 11 of my favorite drought-tolerant perennials.
Angela Treadwell-Palmer is a cofounder of Plants Nouveau, a company that introduces new plants to the market; www.plantsnouveau.com.
Sedum ternatum ‘Larinem Park’
A drought-tolerant, white flowering groundcover sedum for dry shade. What more could you ask for?
Height: 6 inches
Width: 12-18 inches
Hardiness: Zones 3-9
Vernonia lettermannii ‘Iron Butterfly’
This is one of the prettiest iron weeds on the market right now. It does not spread like the species, and the foliage has such a delicate texture. It fits right into cutting gardens, perennial borders and drought-tolerant plantings.
Height: 30-36 inches
Width: 30-26 inches
Hardiness: Zones 4-9
Hakonechloa ‘All Gold’
This is usually seen in moist, shady gardens, but once established, it can take full sun and dry shade. It’s amazingly versatile and it brightens up dry shade gardens so nicely.
Height: 10-14 inches
Width: 18 inches
Hardiness: Zones 5-9
Sporobolus heterolepis
Prairie dropseed is the most wonderful, delicately textured, clumping (or tussocking) grass on the market. It blooms in June and July and the plumes smell like buttered movie popcorn. It makes such a wonderful addition to a hot, dry perennial border or roadside municipal planting.
Height: 2-3 feet
Width: 2-3 feet
Hardiness: Zones 3-9
Silphium connatum 
 This plant likes to walk around a little, but it is easy to remove. This is a pass-over-the-fence plant. Share it with your neighbors. Children love the cup plants because they can grow up to 1 foot a week in the spring. The “cups” capture water from rains for insects to drink. It’s a really cool plant, for sure.
 Height: 8-10 feet
 Width: 4-5 feet
 Hardiness: Zones 4-8
Heuchera ‘Caramel’
One of the few heucheras on the market right now that will thrive in dry shade, a terrible spot for gardeners. This caramel-colored coral bell looks nice all season. The other selection I love for dry shade is ‘Stainless Steel.’ It mixes well with ‘Caramel’ and makes for a colorful, shady spot.
Height: 1 foot
Width: 1-2 feet
Hardiness: Zones 4-8
Echinacea pallida
Echinaceas are drought tolerant, but my favorite species is pallida with its wispy, pale pink ray petals. Of the new selections, my favorite is ‘Hot Papaya,’ with its amazing color, terrific drought tolerance, and the butterflies love it.
Height: 2-3 feet
Width: 1-1½ feet
Hardiness: Zones 3-10
Schizachyrium scoparium
The Little bluestem will grow perfectly well in a roadside ditch. It likes really awful, dry, infertile garden soil. It’s the perfect plant for highway medians — especially some of the newer, more compact selections like ‘Prairie Munchkin’ that will be out in 2013 from Plants Nouveau.
Height: 2-4 feet
Width: 1½-2 feet
Hardiness: USDA
Hardiness: Zones 3-9
Lavendula x intermedia ‘Provence’
Proven hardy to USDA Hardiness Zone 6, this lavender, if kept dry, will live well and perform year after year in the driest, sunniest spots. Plant this with other herbs like thyme and rosemary for a truly Mediterranean, no-water-needed garden.
Height: 2-3 feet
Width: 2-3 feet
Hardiness: Zones 5-8
Baptisia australis ‘Purple Smoke’
Once planted, don’t move your baptisia and it will perform well in clay, infertile, dry soils for many, many years. ‘Purple Smoke’ is nice because it’s the perfect middle of the perennial border plant. The species is just as drought tolerant, but this is a nice, softer color.
Height: 2-3 feet
Width: 2 feet
Hardiness: Zones 4-8
Polystichum polyblepharum
One of the most drought tolerant, ornamental ferns on the market. The tassel fern looks plastic and will not skip a beat in dry shade.
Height: 1½-2 feet
Width: 1½-2 feet
Hardiness: Zones 5-8
All Gold: courtesy Thieneman’s Herbs & Perennials  /  Iron Butterfly: courtesy North Creek Nurseries  /  Provence: Park Seed  /  Silphium connatum : courtesy Indiana UniversitY, Purdue University Fort Wayne    Schizachyrium scoparium: courtesy Kansas State University  /  Sporobolus heterolepis: Julie Weisenhorn, University of Minnesota  /  FERN: courtesy Briggs  Nursery  /  Larinem Park: courtesy Secret Garden Growers  Purple Smoke: Angela Treadwell-Palmer  /  Echinacea: H. Zell
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