Category Archives: Zone 4a

08 Nov

Lovely Flowering Shrub for Garden Borders: Spiraea thunbergii

The plant featured today is Spiraea thunbergii. It is one of my favourite flowering shrubs because of its delicate spring flowers and interesting foliage. Spiraea thunbergii grows up to 5 feet as a dense, twiggy shrub and produces attractive narrow leaves. The beautiful foliage grows on wiry stems that densely branch out from the main stem of the plant. The interesting formation of leaves gets more beautiful in fall when the green color of leaves turns to golden-yellow to orange and bronze. The leaves fall of in winter and start sprouting again in early spring.

Spiraea thunbergii

Spiraea thunbergii / Image by Wikimedia Commons

Flowering starts in spring and last for many weeks. The white delicate flowers of Spiraea thunbergii form small clusters that cover the entire plant. Exposure to full sun encourages growth of flowers. Because of its interesting foliage, beautiful flowers and growing habits, Spiraea thunbergii makes an excellent border plant for gardens and landscapes.

Spiraea thunbergii can be easily grown in a slightly moist but well-drained soil. This lovely shrub loves sun but tolerates light shade. As with most plants in the Rose family, propagation of Spiraea thunbergii is done from layering or cuttings.

20 Oct

Beautiful Flowering Shrubs and Trees: Tamarix

Tamarix is a genus of flowering shrubs and trees from arid regions of Africa and Eurasia but widely spread in most parts of the world. Known for their feathery flowers, most species of Tamarix are grown as drought-tolerant ornamental plants in gardens and landscapes.

Tamarix shrub

Tamarix/ Image by Matthijs Quaijtaal (flickr)

Gardeners often plant these plants and ornamental shrubs in gardens or as shade trees in landscapes. Most species of Tamarix produce slender stem and branches that grow scale-like leaves. Major attraction of Tamarix is from spring to fall when these plants produce feathery flowers of pink or white color. These lovely flowers appear is dense masses at the tips of slender branches. When not in bloom, Tamarix server as good plants for hedges or screens.

Because of their ability to withstand long spells of drought, Tamarix are easy to maintain. They are grown from seeds and cuttings and thrive easily in saline soils. Most species of Tamarix would grow well under full sun and require moderate watering.

Popular species of Tamarix include:

Tamarix hispida, commonly known as Kashgar tamarisk, is known for its vigorous growth and beautiful pink flowers.

Tamarix ramosissima, usually described as Saltcedar, has shrubby growth. It can be grown in poor and saline soils. Under preferable conditions, this plants can become seriously invasive.

18 Oct

Growing Helianthus, the Sunflower, in Landscape and Gardens

Helianthus, commonly known as Sunflower, is a genus of lovely and prolific flowering plants. These lovely bloomers are easily grown in almost any soil and make excellent flowering plants in gardens and landscapes. Most species of Helianthus are annuals and perennials growing from 2 to 4 meters. Helianthus is typically characterized by stout, hairy and seldom branching stem. Each stem has a terminal flower head bearing showy and fairly large-sized flowers.

Helianthus annuus

Helianthus annuus/ Image by Margrit (flickr)

Because of their columnar growth, bright flowers, and easy maintenance, many species of Helianthus have become popular flowering plants in many parts of the world. These species vary in height, and size and color of the flower.

Popular garden species of Helianthus include:

Helianthus annuus or common Sunflower: This is a branching annual growing up to 3 meters. The plant is characterized by coarse leaves and large yellow flowers. The Spanish name ‘annuus’ is because of the movement of flower head along with the sun. It actually follow the sun each day, facing eastward in the morning, westward at sunset.

Helianthus tuberosus is another popular plant from this genus. Unlike its cousins, this lovely bloomer produces smaller flowers on delicate stems. The tubers are edible and are usually known as Jerusalem artichoke.

Helianthus tuberosus

Helianthus tuberosus/ Image by Kingsbrae Garden (flickr)

Helianthus decapetalus ‘Multiflorus’ is popular because of its tufted flowers. This perennial blooms in summer and bears golden-yellow flowers.

Other popular species include: H. salicifolius, H. divaricatus and Helianthus debilis.

Sunflower

Sunflower/ Image by Maja Dumat (flickr)

Most species of Helianthus easily grown in average, moist and well-drained soil under full sun. Propagation is done from seeds or divisions. Regular feeding and watering encourage prolific flowering.

04 Apr

Flowering Plant for Garden Borders: Globularia cordifolia

The plant featured today is Globularia cordifolia. Commonly known as Globe Daisy, Globularia cordifolia is a low growing, evergreen and mat forming plant that grows widely across Europe, and parts of Africa and Asia. Globe Daisy is grown in gardens as ground cover or as border plant because of its evergreen and low growing habit. It is also grown in rock gardens for its ability to survive long spells of drought.

Globularia cordifolia, Globe Daisy

Globularia cordifolia, Globe Daisy/ Image by Roberto Verzo

Globularia cordifolia prefers sunny exposure and moderate watering in a well-drained soil. The plant grows up to 6 inches and tends to spread across 12 inches to form a thick mat of leathery leaves. From the mat of dense leaves, appear slightly taller stems that bear beautiful flowers in early summer or late spring. Flowers usually have mauve or pale lilac colors. These flowers last long and create a beautiful display in landscapes and gardens.

Other popular species in the genus include:

Globularia meridionalis – Another evergreen perennial with glossy green leaves and lavender blue flowers. The plant is quite easy to grow in Mediterranean climate.

Globularia punctata or Iberian Globe DaisyDrought tolerant plant; grows in full to partial sun and produces globe-shaped flower in spring.

28 Mar

Akebia quinata, the Chocolate Vine

Akebia quinata, popularly known as Chocolate Vine because of its brownish-purple flowers, is a beautiful climber for sunny or partially shaded spots in gardens. Native to the Far East, Akebia quinata grows as a quick climber and makes an excellent specimen for growing over pergolas or against walls where it produces abundance of fresh-green foliage. It can also be used as ground cover. The compound leaves of Akebia quinata are evergreen in tropical climates and semi-evergreen in colder areas.

Akebia quinata, the Chocolate Vine

Akebia quinata, the Chocolate Vine/ Image via flickr

Akebia quinata grows in a slightly moist soil under full or partial sun. The chocolaty flowers appear in spring or summer and emit exotic spicy fragrance with the hint of vanilla. Flowers last longer in warm and dry conditions. Flowering is followed by formation of long pulpy and edible fruits. However, it usually requires two plants of Akebia quinata to fertilize the flowers. The plant can be pruned back at the end of the flowering season. The fruit as well as the plant itself are used in traditional Chinese medicine for their diuretic properties.

Like most Akebias, Chocolate Vine can be grown from seeds sown in spring, or by layering long stems in winter.