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This rose is a proven All-Star! Home Run is absolutely, positively the best true-red rose with continuous blooms and top level disease resistance to both black spot and powdery mildew. It has a high level of tolerance to downy mildew as well, plus it is heat tolerant, cold hardy and requires no deadheading.
Check it out climbing on our trellises in the Fountain Garden.
This deciduous shrub grows well in our area. It bears erect racemes of pea-like, pink flowers from summer to early fall above leaves composed of several leaflets. The flowers are followed by long, dark purple seed pods. In colder climates this shrub may die back to the ground, resprouting from the base in spring. Provide full sun and moist, well-drained soil in USDA Hardiness Zones 6 to 9. Prune out wayward and crossing branches in spring.
You can find this plant in our Fountain Garden.
This hybrid has a compact, mounding habit, with silvery-blue foliage and fluorescent pink toothed flowers, which continue blooming with deadheading. Plant in full sun and well-drained soil. The vibrant pink flowers have a spicy clove fragrance. It is best mulched with stone chips, sand, or gravel to avoid fungal diseases.
You can't miss this bright mass of flowers on the east side of the staircase in the Boulder Garden.
Would you like some colour in your garden? It's easy with Garvinea...Garvinea is a revolutionary new gerbera with a unique combination of features. Using genetics from wild South African plants, breeders have managed to come up with a colour palette of strong, prolific, free flowering gerberas which have cold tolerance and superior pest and disease resistance.
Garvinea are happy in full sun to part shade and look gorgeous mass planted in garden beds and large containers. What Garvinea lacks in flower size compared to other gerberas is more than made up for by the quantity of flowers, with each plant yielding well over 70 blooms per year. They provide continuous colour from spring right through summer to the end of autumn. Garvinea are winter hardy and survive where temperatures may drop to -5°C. Come spring the flowers will start popping up for another long season. Being pest and disease tolerant means that Garvinea are much easier to grow than most other gerberas.
You can find these plants in the Boulder Garden area around the greenhouse.
White Fringe Tree is a prized large shrub or small deciduous tree with upright branches forming a dome shape. Soft green leaves back magnificent clusters of fringe-like blooms. This is a terrific accent for the landscape.
You can find this little gem at the top of the Boulder Garden along the outer walkway.
Brilliant fluorescent pink flowers cover green mounds of highly scented foliage. Truly a heat and drought tolerant plant, Pink Preference Sage flowers from late spring until frost and is perfect for rock gardens and containers.
You can find this wonderful perennial plant in the Boulder Garden on the east side of the stairs.
The Encore are hybrid varieties that are repeat bloomers meaning they can flower for up to nine months in some regions. Autumn Sunset gives you vivid orange-red blooms, a color similar to that of a spectacular fall sunset. Deep green foliage and sizzling auburn flowers combine to create eye-popping splendor.
Flowering as early as March, your Autumn Sunset gets a jump start on many garden bloomers. Then, just when other blossoms are withering, your azalea is ready to go again, developing new shoots and growing buds which will add color through the summer.
Encore Autumn Sunset is an evergreen, upright and rounded shrub that can endure more sun than a traditional azalea. Easy to care for, this beauty is adaptable to almost any soil. This plant is displayed at our entrance in the Entry Garden.
Herbaceous peonies, which have foliage that dies back during the dormant season, are quintessential perennials. They stay where you put them, live for an astounding 40 to 50 years, and require very little attention. They survive the harshest winters, easily resist drought, and aren't bothered by hungry deer or rabbits. Think of them as garden workhorses-particularly beautiful workhorses.
See these beauties in our Entry Garden.
This plant is intolerant of dry soils and prefers constantly moist soils in shady areas that are protected from strong winds. White leaf edges scorch easily from hot sun and winds. It freely self-seeds. It is a clump-forming, rhizomatous perennial which features small, blue, forget-me-not-like flowers in airy, branched racemes rising to 18" tall in spring.
Check it out in our Entry Garden.
Viburnum Summer Snowflake is a beautiful white flowering shrub that makes an outstanding background for beds and mixed borders. It spreads out generously along fence lines and fills in foundation plantings along large barren walls.
Viburnum Summer Snowflake is a natural for shrub borders and island planting. It is a perfect candidate for English cottage gardens or American country and colonial style landscapes. It is an exceptional choice for all white and moon gardens and a natural addition to wildlife gardens.
This wonderful shrub can be seen in our Fountain Garden.
One look at this plant and you will guess its common name - Shamrock. Zinfandel Oxalis has dark plum-colored shamrocks the size of your palm with clusters of blush pink, lily-shaped flowers.
This is a great container plant as it intermingles well with other plants to fill in the middle ground of a combination planter. Deadheading is not necessary and it is drought tolerant. In the Tulsa area it is an annual, but it adapts very well as a houseplant during the winter.
You can find this plant at the sides of the steps in the boulder garden.
Water Lily plants will add intense color and green foliage to any water garden, while also attracting birds and butterflies. These red or white lilies will thrive with any other water plants already growing in your pond, and they are cold hardy.
We found them blooming in our water garden and had to share their beauty.
Tall Bearded Irises are the royalty of the spring garden. They make stunning specimen plants and provide the landscape with large, awe-inspiring blooms on multi-budded, branched stalks.
Our garden visitors gravitate to this very dark purple ruffled bearded Iris which can be viewed in the fountain garden.
Ninebark is a medium large multi-stemmed shrub in the Rose family with a height and spread of 6 to 9’. The recurved arching branches are crowded and dense with the older, most vigorous shoots showing heavy exfoliation (hence the common name).
The leaves are simple, alternate, and toothed, mostly ovate shaped with those on the large, older branches usually having three lobes and ranging from l l/2 to 2 1/2” long and about as wide. The leaves on the smaller, younger shoots are variable in shape but are much smaller than those on the larger shoots.
The flowers, emerging in late April, are formed in a white, tight, dense corymb on the new season’s growth. The fruit, an inflated capsule, usually 5 to a cluster, forms immediately as flowering ceases, progressing in color from rosy pink to soft buff through the summer until ripening in early fall.
Ninebark is drought tolerant after establishment and very long lived. It can be transplanted from containers at any time, but the ideal time is when it’s dormant. It can grow quite large but is extremely amenable to selective pruning, which allows its owner to keep it looking perfect for the area in which it was planted.
Ninebark is very adaptable and undemanding only asking for as much sun as possible and average soil a little in the acid range. It is perfect in a shrub border with other large flowering shrubs such as Weigela, Spiraea, Forsythia and Viburnums.
In our landscapes it is perfect close to a chain length fence where the tallest canes can arch through the holes giving a vine-like effect. Our Linnaeus Garden also has one displayed in the boulder area next to the stream to provide color from March through early winter.
This Clematis has enormous flowers, 8 to 9 inches across, which completely cover the vines from May through frost. Its vivid colors make the blossoms look tropical, but clematis is tough and hardy and is nearly carefree once established.
It requires a support and climbs 8 to 12 feet. Like all other Clematis it does best when planted in full sun with roots shaded.
You can find it growing on the archway between the Vegetable and Fountain gardens.
Its marvelous display of pink flowers will truly draw your attention. Weigela is known for its distinctly dazzling early flowers that hummingbirds adore. The most common flower colors are red and pink.
One of the best features of Weigela is that it is user friendly. Adaptable to many soil types, it is hardy to zone 4 and has no serious pest problems. It is easy to propagate, easy to grow and presents itself well in a container. The only requirement of this plant is that it requires full sun to produce copious flowers.
This colorful plant can be found at the bottom of the rock garden right next to the water feature.
Chocolate Chip Ajuga - This low growing ground cover offers both fetching foliage and showy flowers. Its narrow leaves are enticing shades of plum and chestnut. When not in bloom, Chocolate Chip Ajuga may be walked on with no fear of damaging its foliage. Three inch spikes of frothy blue blossoms are produced in spring and sometimes reoccur in milder climates. Set against the darker leaves, these blue flowers really pop. This is a fast growing favorite that spreads rapidly by runners and makes a mat of dense, dark green foliage. Chocolate Chip is a dwarf form that grows just 2-3 inches high but spreads up to 3 feet wide. Count on it to crowd out those pesky weeds. This plant will adapt to almost any garden or landscape locale.
Our garden is sporting some new Encore Azaleas and they are the most cold hardy of all the encore varieties.
If you love Azaleas in the spring and wish that their bloom cycle could happen more than once a year then the Encore Azalea is your answer.
After the spring blooming period, these amazing azaleas begin growing new shoots and start blooming into full flower in mid-summer. They have occasional flowers throughout the entire growing season and can have a flourish of flowers even in the fall.
This Japanese maple has a round shape with a height and spread of about 20 feet, making it nicely suited to residential landscapes. Its popularity is due mostly to the leaves, which stay red for most of the summer.
Leaves turn greenish red during hot weather in the southern part of its range. The multiple trunks are muscular-looking, picturesque, grey and show nicely when lighted at night. Fall color is reddish and less striking than other Japanese maples. Lower foliage branches can be thinned to display the attractive bark and trunk structure.
This beautiful tree can be seen from our outside teaching classroom.
By Sandi Rebman
Photos by Marc Schreiber
Last updated May 19, 2013