Category Archives: Zone 6b

28 Jun

Unusual Living Rock of South Africa: Titanopsis calcarea

Though I have not had much success with growing it, Titanopsis is one of my favorite succulents any day. My recent purchase was a couple of Titanopsis calcarea from Uwe Beyer a few months ago. So far they are doing well.

Titanopsis calcarea

Titanopsis calcarea/ Image by Manuel M. Ramos

Titanopsis is a small genus of dwarf succulents from the family of Aizoaceae. Naturally growing in the Upper Karoo in South Africa, Titanopsis is an attractive but quite unusual plant because of its formation. The plant grows as a dwarf succulent and produces thick truncated leaves that have crumpled surface. These unusual leaves display all the hues of red, purple, green, cream and blue throughout the year. Flowers appear in late fall and winter. Like its cousins in the Aizoaceae family, Titanopsis produces small daisy-like flowers of yellow color.

Titanopsis grows to form clumps. These clumps can be divided for further propagation of the plant. Titanopsis calcarea, like other species, requires moderate watering during the growing season (late fall to early spring) and almost no water the rest of the year. These succulent plants prefer porous soils with excellent drainage. They are capable of tolerating both high (45° C or more) and low temperature (up to -10° C).

The best place to grow Titanopsis calcarea is a sunny spot where it gets bright sunlight in summer and direct exposure to the sun in winter. Other popular species of Titanopsis include: Titanopsis fulleri and Titanopsis primosii.

18 Jun

Hardy and Lovely Bloomers for Sandy Soil: Lewisia

Lewisia is a genus of hardy perennials from the alpine climate western North America. These lovely bloomers make excellent plants for rock gardens, borders, and container gardening. Most species of Lewisia are low-growing, sometimes dwarf, perennials that produce spectacular and considerably larger flowers for their size.

The genus of Lewisia is characterized by hardy plants that produce small rosettes of succulent leaves and very showy flowers white, pink, purple, mauve, yellow, and cream colors. Flowers appear in early summer or late spring.

Lewisias can be grown under bright sunlight in a sandy and porous soil that guarantees perfect drainage. Though slow-growing, most species of Lewisia are low-maintenance plants that withstand drought and neglect.

Lewisia

Lewisia in a rock garden/ Image by dan.kristiansen

Popular species include:

Lewisia cotyledon forms evergreen succulent rosette and produce flowers of orange, pink, white or yellow colors.

Lewisia glandulosa is a deciduous plant that produces a rosette of narrow leaves and bears small flowers of white or pink shades.

Lewisia x pygmaea is a dwarf and deciduous perennial that produces lovely pink flowers in spring.

Lewisias can be grow easily in moderately fertile, neutral to acid, and well-drained soil under full sun or light shade.

16 Jun

Lovely Aquatic Plants for Pots and Small Ponds: Nymphoides

Nymphoides is a genus of aquatic plants grown for their lovely white or yellow flowers. These plants are commonly known as Floating-Heart plants because of their heart shaped leaves that float on the surface of the water. The heart-shaped leaves have their roots submerged in the water and small white flowers that nod along the floating leaves.

Nymphoides cristata

Nymphoides cristata/ Image by Mary Keim

Nymphoides is widely grown across Africa, Asia, Australia and America in ponds, aquariums and ornamental water gardens. Most of the species vary in shape and size but their basic structure and growing habit is similar. Unlike other aquatic plants, they do not sprawl much and can be grown in rather small ponds. They can be grown along the margins of ponds in about 12″ of water, or in a pot in open water in up to 20″ of water where they can form small colonies.

Flowers usually appear in mid spring through the summer, and frequently into the fall. Propagation can be done from divisions or runners.

Popular species of Nymphoides include:

Nymphoides indica or Water Snowflake: Fast-growing perennial with white flowers that have feathery edges.

Nymphoides cristata: Beautiful aquatic plant with heart-shaped green leaves that have purple veins. White flowers appear in spring or summer.

Nymphoides pelata: Easy to grow and low-maintenance aquatic plant with lovely yellow flowers.

19 Apr

Lovely Landscape Shrubs: Viburnum

Viburnum is a large genus of flowering shrubs and small trees that offer a wide range of plants for landscapes and gardens. In fact, you can find Viburnums for almost all types of climates and growing conditions. Some of the species grow well in warm and sunny conditions and some prefer colder and shady spots. Some species adore landscapes and some accommodated in small gardens and containers.

Viburnum opulus 'roseum'

Viburnum opulus ‘roseum’/ Image by Dietmut Teijgeman-Hansen

Gardeners grow Viburnums as exotic bloomers that produce beautiful and showy flowers. Flowering starts in early spring and lasts till mid-summer. Flowering is followed by formation of berry-like fruits that are eaten by birds. Most species of Viburnum are sun loving but they accommodate well in partially shaded spots easily.

Viburnum can be propagated from cuttings or layers. The best use of Viburnum is in hedges, borders or landscapes where these lovely bloomers can be grown in groups for abundant spring flowering.

Among many species and hybrids, popular varieties include:

Viburnum x burkwoodii: Large white or pink flowers with strong fragrance.

V. davidii: Shrubby plant often growing into a small tree; makes a good specimen plant.

V. carlesii: Beautiful reddish foliage and slightly fragrant flowers of pink color.

Viburnum opulus: Known for large snowball flowers.

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.