What's in Bloom

What's in Bloom Archives

Variegated Oleander

Variegated Oleander

Variegated Oleander has dark pink flowers that bloom in summer under full sun. In the fall, its flashy leaves brings drama to the garden. It is heat, drought, and salt tolerant which make it the perfect accent plant for a more aggressive climate.

This classic shrub has variegated leaves of dark green edges marked by creamy yellow. Although it's leaves are striking alone, it's flowers add a stunning beauty.

Drought tolerant, it responds well to an occasional shower. It will grow up to 4' with a dense, upright habit if located in full sun and well-drained soil.

You can see it in a large planter on the East side of the Memorial Arch. We'll move it inside the barn for the winter. (2015)


Double Play Gold Spirea

Double Play Gold Spirea

Bright gold foliage contrasts with abundant, hot pink spring flowers on Double Play Gold Spirea. It maintains its neat compact mounded shape with very little pruning. More intensely colored than other varieties, this spirea adds season-long impact to gardens with very little effort. It is ideal for foundation and mass plantings.

You can find a mass planting of Double Play Gold Spirea by our Memorial Arch in the Boulder Garden.

Virginia Sweetspire

Virginia Sweetspire

This old time favorite native plant for southern landscapes has been used for generations because of its seasonal beauty, hardiness, durability and resistance to disease and insect pests. Virginia Sweetspire has many notable characteristics - gorgeous white, slightly fragrant flowers that show up in late April to May and superb fall color.

It is tolerant of wet soils, yet amazingly it has very good drought tolerance. When placed in full sun the foliage gets denser and the flowers are more abundant.

Flowers are formed on the previous season's wood so we should always wait until after flowering to prune. In the fall, the leaves change to burgundy-purple which presents an attractive contrast to broadleaf evergreens in the landscape.

Plant them en masse for best effect - if given adequate sunlight and moisture they will supply many years of enjoyment.

You can find sweetspire in the Herb Garden, Boulder Garden, and other places throughout the Linnaeus Garden. (2015)

Autumn Brilliance Serviceberry

Autumn Brilliance Serviceberry

Early spring flowers give way to equally showy edible fruit.

This plant grows from 15 to 25' tall with multiple stems forming a dense shrub or, if pruned properly, a small tree. It adapts to a very wide range of soils and is somewhat drought tolerant.

Its spectacular show of white flowers in early spring is one of its main ornamental features. They begin as a pale pink, then fade to snowy white fragrant flowers. Its young leaves are purplish in color, then turn red, orange, and yellow in the fall. The fruit is round, sweet and edible in summer which is good for wildlife and also for human consumption.

To sum it up, here is an easy to grow plant which is featured in many gardening and landscape magazines.

It can be found along the path of the Linnaeus Boulder Garden.(2015)

Autumn Brilliance Serviceberry fruit

Mahonia Japonica Bealee Leatherleaf

A member of the barberry family, is usually found in open woodlands. It is shade tolerant, but will grow in full sun, and is also drought-resistant. This evergreen shrub begins to flower in late winter through early spring. Each flower is about one-fourth inch across. The flowers are pollinated by insects.

An attractive evergreen shrub, it blooms terminal clusters of fragrant yellow blossoms which progess into clusters of green, that matures to deep blue, fruit. The ripe fruits are covered by a waxy coating which has a powdery blue appearance. Birds rapidly devour them.

This specimen is located on outside of Outside Pool Walk near outdoor classroom. (2015)

Knockout Roses

Red Knockout Rose

Blushing Rose Knockout

Knock Out Roses were selected as an AARS (All-America Rose Selections) winner in 2000, and the patented Knock Out roses quickly became the largest-selling rose variety in North America. Now they are a staple of home and municipal landscapes and parks due to their carefree attitude and showy, summer-long blossoms.

These roses start blooming in spring and continue until well into fall with very little care. They are resistant to black spot and other diseases, will tolerate partial shade, quickly respond to pruning, and are tolerant of all but the most extreme heat and drought. Knock Out roses can be used anywhere in the landscape, from roadside plantings to garden borders to containers and specimen plantings.

At Linnaeus Garden, these can be found outside the fence between the greenhouse and the driveway.



Croton is a tropical plant that can be used as an annual in the garden or as a display planter, and it comes in an amazing diversity of leaf shapes and colors. It has rather thick evergreen alternate leaves, tiny inconspicuous star-shaped yellow flowers that hang down in long racemes, and a milky sap that bleeds from cut stems. Depending on the cultivar, the leaves may be ovate to linear, entire to deeply lobed, and variegated with green, white, purple, orange, yellow, red or pink. The colors may follow the veins or the margins or they may be in blotches on the leaf.

You can find this tropical plant in a planter located in our entry garden.

Bloodgood Japanese Maple

Bloodgood Japanese Maple

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, just East of the Memorial Arch .(2015)

Grace Smoketree

Smoketree Grace

Grace Smoketree (Cotinus coggygria x obovatus 'Grace') is an elegant hybrid of the European and North American species. Light red spring foliage matures to rich wine-red leaves. These evolve to a showy mix of orange, red, purple and golds in the fall. Frothy purplish-pink clusters of flowers resemble smoky plumes, adding drama to the landscape in midsummer. Upright and spreading, this low-branched tree develops a rounded head as it reaches about 20 feet in height with a 15 foot spread.

Like all smoke trees, Cotinus 'Grace' is disease free and drought tolerant. It requires full sun and will not grow well in shade. In low light conditions it has a lax habit and will not flower or develop foliage color. Cotinus 'Grace' will grow in a wide range of soils with average fertility.

You can locate it at the top of our boulder garden.

Acer Palmatum Shirazz 'Gwens Rose Delight' Japanese Maple

Shirazz Japanese Maple 'Gwens Rose Delight'

A New Zealand-raised Japanese Maple cultivar with strongly marked variegated foliage combining green and cream with a strong pink edge and overall pink flush. The colors intensify in autumn, with the green turning to str ong purple-red.

The plant offers heat resistant foliage and striking variegation with a weeping habit.

You can find this new variety in a pot in our entry garden right by the outside classroom.(2015)

Zinfandel Oxalis

Zinfandel Oxalis

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 old-fashioned shamrock houseplant is now high fashion, with its elegant foliage, abundant delicate flowers, and vigor. Only 6 to 10 inches high with a spread to 12 inches, this plant’s tiny leaf clusters and bright flowers are massed on trailing stems that spill over the sides of shaded window boxes and containers. Though this shamrock is frost tender, it is easy to overwinter indoors, and is a nice houseplant.

Zinfandel Oxalis along steps

You can find this plant along the steps of the Boulder Garden. (2015)

Nelly Moser Hybrid Clematis

Nelly Moser Clematis

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.

When the vivid lavender blooms of the Spring time shrivel, attractive light green spirals take their place.

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 in a pot by the archway between the Vegetable and Fountain Gardens.(2015)

Nellie Moser Hybrid Clematis

Pink Preference Sage

Pink Preference Sage

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.

Last Updated 5/19/2015