Saturday, 10 June 2017

DESKTOP 1411 - YARRA BEND PARK

Vista of the Yarra River in suburban Melbourne, about 4 km from the CBD. Yarra Bend Park is an amazing nature reserve in the midst of the City.

This post is part of the Weekend Reflections meme,
and also part of the Scenic Weekends meme.

Thursday, 8 June 2017

DESKTOP 1409 - ERYNGIUM

Eryngium is a genus of flowering plants in the family Apiaceae. There are about 250 species. The genus has a cosmopolitan distribution, with the centre of diversity in South America. Common names include eryngo and amethyst sea holly (though the genus is not related to the true hollies, Ilex). These are annual and perennial herbs with hairless and usually spiny leaves. The dome-shaped umbels of steely blue or white flowers have whorls of spiny basal bracts. Some species are native to rocky and coastal areas, but the majority are grassland plants. In the language of flowers, they represent admiration.

Species are grown as ornamental plants in gardens. Numerous hybrids have been selected for garden use, of which E. × oliverianum and E. × tripartitum have gained the Royal Horticultural Society's Award of Garden Merit. Many species of Eryngium have been used as food and medicine.

This post is part of the Floral Friday Fotos meme.

Tuesday, 6 June 2017

DESKTOP 1407 - STONEHENGE, UK

Stonehenge is a prehistoric monument in Wiltshire, England, 3 km west of Amesbury and 13 km north of Salisbury. It consists of a ring of standing stones, with each standing stone around 4.1 metres high, 2.1 metres wide and weighing around 25 tons. The stones are set within earthworks in the middle of the most dense complex of Neolithic and Bronze Age monuments in England, including several hundred burial mounds.

Archaeologists believe it was constructed from 3000 BC to 2000 BC. The surrounding circular earth bank and ditch, which constitute the earliest phase of the monument, have been dated to about 3100 BC. Radiocarbon dating suggests that the first bluestones were raised between 2400 and 2200 BC, although they may have been at the site as early as 3000 BC.

One of the most famous landmarks in the UK, Stonehenge is regarded as a British cultural icon. It has been a legally protected Scheduled Ancient Monument since 1882 when legislation to protect historic monuments was first successfully introduced in Britain. The site and its surroundings were added to UNESCO's list of World Heritage Sites in 1986. Stonehenge is owned by the Crown and managed by English Heritage; the surrounding land is owned by the National Trust.

Stonehenge could have been a burial ground from its earliest beginnings. Deposits containing human bone date from as early as 3000 BC, when the ditch and bank were first dug, and continued for at least another five hundred years.

This post is part of the Our World Tuesday meme,
and also part of the Travel Tuesday meme,
and also part of the Wordless Wednesday meme.

Thursday, 1 June 2017

DESKTOP 1402 - CRASSULA

Crassula ovata, commonly known as jade plant, friendship tree, lucky plant, or money tree, is a succulent plant with small pink or white flowers in the Crassulaceae family. It is native to South Africa and Mozambique, and is common as a houseplant worldwide. It is sometimes referred to as the money tree; however, Pachira aquatica also receives this nickname.

The jade plant is an evergreen with thick branches. It has thick, shiny, smooth, leaves that grow in opposing pairs along the branches. Leaves are a rich jade green, although some may appear to be more of a yellow-green. Some varieties may develop a red tinge on the edges of leaves when exposed to high levels of sunlight. New stem growth is the same colour and texture as the leaves, but becomes brown and woody with age. Under the right conditions, they may produce small white or pink star-like flowers in early spring.

Numerous varieties and cultivars have been selected, of which C. ovata 'Hummel's Sunset' has gained the Royal Horticultural Society's Award of Garden Merit. As a succulent, Crassula ovata requires little water in the summer, and even less in the winter. It is susceptible to overwatering. C. ovata may attain a red tinge around its leaves when grown with bright sunlight. In more extreme cases, the green colour of the plant is lost and can be replaced by yellow. This is caused by the jade plant making pigments such as carotenoids to protect from harsh sunlight and ultraviolet rays.

The jade plant does best in rich, well-draining soil. The plant flowers in the wintertime, particularly during a cooler, darker, dry spell. C. ovata is sometimes attacked by mealybugs, a common nuisance of the succulents. The jade plant is known for its ease of propagation, which can occur by clippings or even stray leaves which fall from the plant. Jade plants propagate readily from both with success rates higher with cuttings. In the wild, vegetative propagation is the jade plant's main method of reproduction. Branches regularly fall off wild jade plants and these branches may root and form new plants.

Like many succulents, jade plants can be propagated from just the swollen leaves which grow in pairs on the stems. While propagation methods may vary, most will follow similar steps. Typically, the wounds on the leaves are left to dry and callus forms over them. Then the leaves are placed in or on soil. Roots begin to grow on severed leaves about four weeks after being removed from the stem. Environmental factors such as temperature and humidity affect the speed at which the roots and new plant develop. Foliage usually appears soon after new roots have formed. 

This post is part of the Floral Friday Fotos meme.