Thursday, 31 December 2015

FFF215 - CELOSIA

Celosia cristata is a member of the Amaranthaceae family, and is commonly known as cockscomb, since the flower looks like the head on a rooster (cock). It is called Chi Kuan in China. The plants are hardy and resistant to most diseases, and grow equally well indoors or out, though the perfect place is one with no shade and a well drained soil, as the plant is susceptible to fungal diseases. The plant is used frequently as an ornamental plant indoors. Their leaves and flowers can be used as vegetables. They are often grown as foods in India, Western Africa, and South America.

They are annual plants of tropical origin and are herbaceous meaning they lack a woody stem. They grow well in both humid and arid conditions, and their flowers can last for up to 8 weeks. A high number of seeds can be produced by each flower, up to 1,500 per gram. The plant often grows up to 30 cm in height, though many are smaller. The leaves are either green or bronze/maroon, depending upon the cultivar. The flower can be broken into three parts: their spikes, plumes and crests vary from one another but have standard commonalities—they are usually brightly coloured, usually red, yellow, pink, or orange, though other colours can be present. In some instances, a variety of colours are present in hybrids.

The plants are hardy and can be grown easily from the seeds. Since the plants are of tropic origin, they thrive in areas with tropical climate. However, they can also be grown in summer months in the colder climate. The plants being annual plants, grow for only about one fourth of a year. A soil temperature of about 16 °C is ideal for growth. The plants are relatively easy to grow and care for, having few insects that feed on them. Mites, though, are known to feed on the plants. The plants are also susceptible to leaf spotting, root rot and root strangulation. However the former two can be prevented by avoiding a damp soil and the latter by frequent weeding. Also wetting the leaf and flowers should be avoided as they can lead to fungal diseases.

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BEST WISHES TO ALL FOR A HAPPY, HEALTHFUL AND PROSPEROUS NEW YEAR!

Thursday, 24 December 2015

FFF214 - PONTEDERIA

Pontederia cordata, common name pickerelweed (USA) or pickerel weed (UK), is a monocotyledonous aquatic plant native to the American continent. It grows in a variety of wetlands, including pond and lake margins across an extremely large range from eastern Canada south to Argentina. A few examples include northern rivers, the Everglades and Louisiana.

The species grows as an emergent plant, that is, in flooded conditions, so the plant is generally dependent upon aerenchyma in the stem to carry oxygen into the roots. Its metabolism, is, however, also tolerant of low soil oxygen. It is often found in areas where water levels fluctuate naturally, with spring flooding and later summer emergence. Apart from flooding, the species is also influenced by soil fertility, tending to grow in the more fertile bays of large lakes, for example. Like many aquatic plants, it is negatively affected by salinity and grazing. It is also negatively affected by competition from other wetland plants. Like many wetland plants, it can survive unfavourable conditions as buried seeds in the soil.

The plant flowers in late summer. The purple flowers have yellow markings which may assist in attracting bees for pollination. One bee species known to pollinate the flowers is Dufourea (Halictoides) novaeangliae. Once the plant begins to produce seeds, the stem supporting the inflorescence bends to submerse the fruits and seeds. Seeds are dormant at the time of dispersal and will not germinate without stratification for 6-8 weeks.

The flowers of the species are tristylous, meaning the styles of individual plants occur in three different morphs, with most populations containing all three. Leaf shape, which varies considerably across populations, within populations, and even within individuals, has been the source for many taxonomic synonyms. Like many wetland and aquatic plants, the species can reproduce asexually by means of branching rhizomes, and hence can form large clonal stands. This plant is cultivated as an ornamental garden plant, and has gained the Royal Horticultural Society's Award of Garden Merit.

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MY BEST WISHES FOR THE FESTIVE SEASON! MERRY CHRISTMAS TO ALL WHO CELEBRATE IT.

Thursday, 17 December 2015

FFF213 - FRANGIPANI

Plumeria is a genus of flowering plants in the dogbane family, Apocynaceae. It contains primarily deciduous shrubs and small trees. They are native to Central America, Mexico, the Caribbean, and South America as far south as Brazil but can be grown in tropical and sub-tropical regions.

Plumeria is related to the Oleander, Nerium oleander, and both possess an irritant, rather similar to that of Euphorbia. Contact with the sap may irritate eyes and skin. Each of the separate species of Plumeria bears differently shaped, alternate leaves with distinct form and growth habits. The leaves of P. alba are quite narrow and corrugated, whereas leaves of P. pudica have an elongated shape and glossy, dark-green colour. P. pudica is one of the everblooming types with non-deciduous, evergreen leaves. Another species that retains leaves and flowers in winter is P. obtusa; though its common name is "Singapore," it is originally from Colombia.

Plumeria flowers are most fragrant at night in order to lure sphinx moths to pollinate them. The flowers have no nectar, however, and simply dupe their pollinators. The moths inadvertently pollinate them by transferring pollen from flower to flower in their fruitless search for nectar.

Plumeria species may be propagated easily from cuttings of leafless stem tips in spring. Cuttings are allowed to dry at the base before planting in well-drained soil. Cuttings are particularly susceptible to rot in moist soil. In order to get the most from a plumeria plant with respect to growth, size, blooms, and scent, there is a fine balance that must be maintained. Ideally, a plumeria is in its element when it can have plenty of sun and appropriate water, so as to maintain soil moistness just above a state of dryness. On the other hand, if the plant receives a lesser amount of sun, then a lesser amount of watering is necessary - again, to ensure that soil moistness stays just above the dry state. The more sun, the more water. The less sun, the less water. A common mistake of novice plumeria growers is to overwater the plant when it is not able to be exposed to enough sun, thereby resulting in a rotted root system. Conversely, if a plumeria plant is able to receive maximum exposure to the sun, but they aren't watered enough, the plant will die.

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Thursday, 10 December 2015

FFF212 - CROSSANDRA

Crossandra infundibuliformis (firecracker flower), is a species of flowering plant in the family Acanthaceae, native to southern India and Sri Lanka. It is an erect, evergreen subshrub growing to 1 m with glossy, wavy-margined leaves and fan-shaped flowers, which may appear at any time throughout the year. The flowers are unusually shaped with 3 to 5 asymmetrical petals. They grow from four-sided stalked spikes, and have a tube-like 2 cm stalk. Flower colours range from the common orange to salmon-orange or apricot, coral to red, yellow and even turquoise.

This plant requires a minimum temperature of 10 °C, and in temperate regions is cultivated as a houseplant. It is usually grown in containers but can be attractive in beds as well. The flowers have no perfume but stay fresh for several days on the bush. A well-tended specimen will bloom continuously for years. It is propagated by seeds or cuttings. This plant has gained the Royal Horticultural Society's Award of Garden Merit.

In India and Sri Lanka, the tiny flowers are often strung together into strands, sometimes along with white jasmine flowers and therefore in great demand for making garlands which are offered to temple deities or used to adorn women’s hair. The common name "firecracker flower" refers to the seed pods, which are found after the flower has dried up, and tend to "explode" when near high humidity or rainfall. The "explosion" releases the seeds onto the ground, thereby creating new seedlings.


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Thursday, 3 December 2015

FFF211 - CHIVES FLOWER

Chives is the common name of Allium schoenoprasum, in the family Amaryllidaceae. It, like most of the other species of the Allium genus, is a choice edible herb. A perennial plant, it is widespread in nature across much of Europe, Asia and North America. A. schoenoprasum is the only species of Allium native to both the New and the Old Worlds.

The name of the species derives from the Greek σχοίνος, skhoínos (sedge) and πράσον, práson (leek). Its English name, chives, derives from the French word cive, from cepa, the Latin word for onion. Chives are a commonly used herb and can be found in grocery stores or grown in home gardens. In culinary use, the scapes and the unopened, immature flower buds are diced and used as an ingredient for fish, potatoes, soups, and other dishes. Chives have insect-repelling properties that can be used in gardens to control pests.

The flowers are pale purple, and star-shaped with six petals, 1–2 cm wide, and produced in a dense inflorescence of 10-30 together; before opening, the inflorescence is surrounded by a papery bract. The seeds are produced in a small three-valved capsule, maturing in summer. The herb flowers from April to May in the southern parts of its habitat zones and in June in the northern parts.

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