Cyclamen

Think of cyclamen and the chances are that Mothers Day immediately comes to mind, which is something of a pity. Now don't misinterpret me, there's nothing wrong with mothers or with having a day for them, but it does seem a little unfortunate when such beautiful, adaptable and useful plants become so commercialised that there's difficulty escaping that association. But no plant as beautiful as the wild cyclamen can remain so neatly packaged and presented as its cultivated forms may have it. Gardeners are always willing to experiment, to use outdoors what might be considered house plants and to seek out less widely grown but hardier species for their gardens. Once thought to consist of many species, the genus Cyclamen is now considered to include just 19 species, some of which encompass subspecies and forms previously considered distinct. Related to the primroses, they form a few large tubers or numerous small ones, soon spreading to cover a considerable area, if happy. They occur naturally in southern Europe, neighbouring western Asia and the moister parts of North Africa with one species from Somalia, and as with many of the western Asian bulbs, corms and tubers, some species are now rare in the wild because they have been over-collected by commercial bulb gatherers and enthusiasts. Cyclamen are generally most at home in fairly dry, partly shaded, well-drained conditions such as might be found in a rockery. Although hardiness varies with the species, if planted in well-chosen sites, all can be grown in coastal New Zealand gardens and many can be cultivated inland too. While the exact flowering time varies with the species, none bloom to any great extent in summer, the cooler months from March to October being the main season. Common species The best-known cyclamen is Cyclamen persicum, which is so widely cultivated as an indoor or gift plant that it usually known as the florist's cyclamen. This species, or rather the countless cultivars or probably hybrids derived from it, is a native of the eastern Mediterranean, Libya and the islands of Rhodes and Crete. The true species, sometimes seen but often hard to differentiate from the cultivated forms, has dark green leaves heavily marbled with silver-grey and its fragrant flowers, which have reflexed petals up to 3 cm long, may be white, mauve or any shade of pink from pale to cerise. This natural variability and the ease with which it adapts to pot culture has made the plant what it is today - a universal favourite. Cyclamen persicum is so well known that it's fashionable to dismiss it as being too common and to look instead for less widely grown species. However, anything that is popular becomes so for a reason and you don't have to search for the secrets to the success of the florist's cyclamen. It has lush foliage, masses of beautiful flowers in a huge range of colours and styles, it blooms from autumn to spring and can be grown indoors or outdoors in mild climates. What else could you possibly want? Well, perhaps you might want greater frost hardiness, more flowers with less foliage, greater sun tolerance and the kind of diminutive stature that makes the finest rockery and alpine plants so appealing. And that's where the three species that come next in the list of the most widely grown cyclamen really shine, features not lost on the gardeners to which we often look for guidance, the British. Cyclamen have always been popular in Britain but Cyclamen persicum rarely succeeds outdoors in the British climate. Consequently other species have been sought out and developed as garden plants. The first of these was the local Cyclamen purpurascens, from central and eastern Europe, which in its common form was formerly known as Cyclamen europaeum. This small species has marbled, rounded to ivy-like leaves and deep pink flowers that open from late summer. While still popular in British and European gardens, Cyclamen purpurascens is not commonly met with here, though its style of growth paved the way into cultivation for three species that are: Cyclamen coum, Cyclamen hederifolium and Cyclamen repandum. Cyclamen coum Undoubtedly my favourite, this tough little plant is found from Bulgaria and the Caucasus to the northern parts of Syria and Iran and may extend southwards into Israel. It dark leaves are small, usually 25 to 50mm wide, and are heavily marbled, with reddish undersides. The flowers are tiny too and may be white, pale pink or tending towards magenta. They open from early winter and continue unabated into spring. The flowers are remarkably resistant to frost and although they can look very downhearted when frozen, they immediately perk-up on thawing out. This is a terrific plant for rockeries or alpine troughs and is at home in sun or partial shade. Cyclamen hederifolium Formerly known as Cyclamen neapolitanum and still widely sold under that name, the attractively marbled, ivy-like foliage of this native of southern Europe and Turkey dies away in spring and does not reappear until well after the plant has started to flower in late summer. The small flowers occur in a wide range of shades and when spent, their stems start to coil like springs and turn downwards to the ground as the seed capsules develop. Cyclamen repandum This species is found from southern France to Greece and has large, lobed leaves that are dark green with conspicuous silver-grey mottling and marbling. Considering its lush foliage, spring blooming habit and Mediterranean homeland, it is surprisingly frost hardy. Its flowers are pleasantly scented, have petals up to 20mm long and occur in white and all shades of pink to light red. These three species are so common that if you see a garden cyclamen that is obviously not Cyclamen persicum then the chances are that it's Cyclamen coum, Cyclamen hederifolium, Cyclamen repandum or one of the subspecies or forms of those species. However, collectors and enthusiasts, being what they are, have imported other species that you may occasionally have the pleasure of seeing. Rarities With so few species in the genus I'm reluctant to say that any of them aren't cultivated. Indeed, it's very likely that they're all in gardens - somewhere - in one form or another. But while I've learnt to never say never when it comes to stating what's to be found in our gardens, I'm yet to see the Somalian species, Cyclamen somalense. Another exclusively African species, Cyclamen africanum, from Algeria is also very rare. It has rather glossy, toothed edged leaves up to 10 cm wide and its 25mm flowers, which are deep pink and open in autumn, have the scent of violets. It is somewhat similar to Cyclamen hederifolium and along with the white- to deep pink-flowered Cyclamen ciliatum from Turkey is usually the first cyclamen to start blooming in late summer or early autumn. Also from Africa, the Libyan Cyclamen rohlfsianum has silvery marbled bright green leaves with a covering of fine pinkish hairs when young. Its bright pink flowers open in autumn and are often scented. It dislikes winter wet and is best grown in pots with the addition of some limestone chips. The eastern Mediterranean species: Cyclamen creticum, from Crete; Cyclamen cyprium, from Cyprus; Cyclamen graecum, from Greece, the Aegean islands and southern Turkey; and Cyclamen libanoticum, from Syria and Lebanon, are all to be seen locally, though none are common. However, because these species are becoming increasingly rare in the wild and live in areas that are threatened by that most pernicious of predators, the tourist, we should be doing our bit to ensure their survival by making them more widely available. They are, in the main, dainty plants with small leaves and pink flowers. Cyclamen graecum has some of the most beautiful foliage in the genus. In addition to the usual silver-grey mottling, its leaves have pale to vivid green veins, maroon undersides and reddish teeth. Cultivation As mentioned earlier, cyclamen generally prefer partial shade, very well drained, somewhat dry soil and cool conditions. They thrive in lightly shaded rockeries, growing happily in the crevices between rocks and also adapt well to container cultivation, especially in alpine troughs. Most species have a preference for neutral to slightly alkaline conditions. Adding a few limestone chips to the soil aids the drainage and keeps the pH about right. That said, tough species like Cyclamen hederifolium usually adapt well to being cultivated with acid soil plants such as ericas and dwarf rhododendrons, so don't be afraid to experiment. While a few species, such as Cyclamen libanoticum, prefer their tubers to be below the surface, in most cases the top of the tuber should be at or above the soil surface. This helps keep the tubers dry in winter and ensures that the crown of flower and foliage stems does not rot off at ground level. The tubers of indoor potted cyclamen should be kept dry - water the soil surface, not the tuber - and even then only when it has dried. Cyclamen are not heavy feeders. Regular feeding with mild liquid fertilisers will keep house-grown cyclamen flowering well, while a light application of general garden fertiliser during the summer dormant season is enough to ensure that outdoor plants continue to thrive. Pests and diseases are rare on healthy plants and when present are usually a sign of poor growing conditions. While slugs and snails can attack outdoor cyclamen, they should otherwise be pest-free. If indoor cyclamen show signs of botrytis, mildew of other soft rots, the soil conditions are probably too damp. If mealy bugs and scale insects occur they may indicate low humidity or may have spread from other plants that have been infested. Propagation Most cyclamen are bought in nurseries as ready-grown container plants intended, in the case of Cyclamen persicum, for growing indoors, or otherwise for planting out. As they grow and their tubers multiply, they can be lifted and dived when dormant. This slow and steady method of propagation ensures a continuity of growth, but if you need to speed up your cyclamen reproduction consider propagating the plants from seed. While some of the fancy-foliaged forms must be propagated vegetatively to maintain their characteristics, most cyclamen cultivars reproduce reasonably true to type from seed and the species certainly do. Growing from seed is quite straightforward, though you may have to wait quite some time before the first flowers appear, typically 18 months to two years. Sow the seed when ripe, usually late spring to early summer, in a fairly light, gritty soil. The temperature should be cool, around 18°C, and the seed should be lightly covered with soil. If viable, most of the seed should have germinated within 28 to 42 days. The seedlings may be pricked out into individual pots as soon as they are large enough to easily handle without damaging their fleshy stems. Article Source: http://EzineArticles.com/1791

Viburnum

Viburnums are related to the honeysuckles, so it should come as no surprise that many of them have fragrant flowers. But that's not all they have in their favour. No, this genus includes plants for all seasons and all reasons; foliage, flower, autumn colour, scent, groundcover, shrub or small tree, evergreen or deciduous, it's all there among the 120-odd species and the many hybrids and cultivars. Indeed, they're so variable that it would be quite possible to have an interesting garden of viburnums alone. Although viburnums can be found over much of the temperate northern hemisphere and even South America, most of the common plants in our gardens, with the exceptions of the Laurustinus (Viburnum tinus) and the Guelder Rose (Viburnum opulus), occur naturally in temperate Asia or are derived from the species of that area. About the only drawback with viburnums is that because they are so adaptable and easy to grow, they seem to have suffered from the 'familiarity breeds contempt' syndrome that sees common plants, however attractive and useful, relegated to the lower divisions of the garden league in favour of something more 'exciting'. Well, don't fall into that trap - every garden needs at least one viburnum. Foliage While the obvious division in the genus is between the evergreen and deciduous types, it's not quite that clear-cut. Some of the more popular plants are hybrids between evergreen and deciduous species and are semi-evergreen. This can actually be an advantage because they retain enough foliage to not look bare over winter while also developing vivid autumn tones in the leaves that fall. The very popular Viburnum × burkwoodii is the best example of this behaviour. The foliage varies, but is in most cases a pointed elliptical shape and deeply veined. Some of the deciduous species, such as Viburnum opulus and Viburnum dentata, have lobed, somewhat maple-leaf-like foliage. Variegated foliage is not common, but where it does occur, the patterns and colours can be striking. The variegated form of Viburnum tinus is very popular. Flowers Viburnum flowers are nearly always white or pale pink, but within that limited colour range is found a huge variety of blooms. Although the individual flowers are small, they're massed in heads that in some types are very large indeed. Most often the flowers are all fertile, but some species have hydrangea-like flower heads in which small clusters of fertile flowers are surrounded by large sterile ray florets. Cultivars have been raised with flowerheads entirely composed of sterile flowers. A sterile Guelder Rose (Viburnum opulus 'Roseum' [syn. 'Sterile']) in full flower often droops under the weight of its huge flower heads. Although spring is the main flowering season, many of the most fragrant viburnums start to bloom in winter, or even late autumn. Because their flowers aren't brightly coloured and insects are fewer in winter, they presumably use scent as a means to attract from a greater distance those pollinators that are around. Some, such as Viburnum × burkwoodii are rarely without a few flowers. Fruit In all cases, except for the sterile cultivars, the flowers are followed by berry-like drupes. While usually interestingly coloured, the drupes aren't always show, though when they are, they can be a real feature. The steel-blue fruits of Viburnum davidii are very distinctive and the black drupes of Viburnum grandiflorum are particularly large, but my favourite is the so-called High-bush Cranberry (Viburnum trilobum), which covers itself with bright red fruit in late summer and autumn. It seems that just about any plant with showy red berries gets called a cranberry, but although the fruit is edible and can be used as a substitute for cranberry, it isn't the real thing. For the record, the real cranberry, the one of jelly fame, is Vaccinium macrocarpon, a plant more closely related to rhododendrons than viburnums. Cultivation There isn't much to say here; viburnums are easy. Except for all but a few in the very coldest of New Zealand gardens, hardiness isn't a problem; they're not fussy about soil type; most will grow perfectly well in sun or part shade and some will grow in very dark corners. Good drainage helps but they will tolerate soil that's damp for a while. Success with viburnums is not so much a matter of getting them to grow but directing and managing the growth they make. Although viburnums are plants with an in-built resistance to formal shaping, try to establish a good framework of main branches when the plants are young or they may develop into a mass tangled twigs rather than neat bushes. As soon as possible after flowering, thin out any congested or weak stems and shorten back the main branches. There's nothing complicated here, it's just matter of letting more light and air into the centre of the bush and directing the plant's energy into productive wood rather than spindly growth. If this is done for the first five years or so, you should have well-shaped, heavy flowering plants. What's available There are many viburnums out there but garden centres tend to be rather uninspired in their selection, sticking pretty much to the tried and true. However, pester your local garden centre enough and they should be able to get hold of any of the following. Viburnum bitchiuense Found in southern Japan and Korea, this 3m tall deciduous shrub is beautiful in its own right while also being a parent of several attractive hybrids. It has large, strongly fragrant pink flowers that fade to white. They open in spring and are followed by black drupes. Viburnum × bodnantense (Viburnum farreri × Viburnum grandiflorum) A hybrid between two Chinese deciduous species, this 2.5m tall bush has rounded bright green leaves and small clusters of white flowers with a faint pink tint. The flowers are very fragrant and appear from late winter to early spring, very fragrant. Viburnum × burkwoodii (Viburnum carlesii × Viburnum utile) Viburnum carlesii is deciduous and Viburnum utile is evergreen, so in the spirit of compromise, their 3m tall offspring is semi-evergreen. Its rounded, bright green leaves have greyish undersides and in autumn those that fall develop intense yellow, orange and red tones before dropping. In mild areas the flowers open from late winter, elsewhere they appear in spring. They are white, opening from pink buds and are carried in ball-shaped clusters in spring. Their fragrance can scent the entirety of a small garden. Several cultivars are grown, of which the compact 'Anne Russell' is probably the most popular. Viburnum × carlcephalum (Viburnum carlesii × Viburnum macrocephalum forma keteleeri) Sometimes called the Korean Spice Viburnum, this deciduous hybrid grows to around 2.5m tall and its flowers really do have a spicy fragrance. They open in spring, the first blooms being pink while the later flowers tend towards white-flushed-pink. The flower heads are up to 15cm across and complement the large, rather glossy leaves. Viburnum carlesii At first sight this native of Korea and Japan resembles the more common Viburnum × burkwoodii, which is not surprising as it one of that hybrid's parents. However, it is fully deciduous and a more compact plant, rarely exceeding 1.8m tall. Its flowers, in ball-shaped clusters, pink in bud opening to white in spring, are very fragrant. There are quite a few cultivars of which 'Aurora' (flowers in various shades of red pink and white) and 'Cayuga' (orange autumn foliage) are the most popular. Others, such as the widely grown 'Chesapeake' are hybrids with Viburnum utile. Viburnum davidii While capable of growing to 1.5m tall, this western Chinese evergreen species is more commonly seen as a mounding groundcover. It has bright mid green, glossy, heavily veined leathery leaves up to 15cm long that overlap to form a dense foliage cover. Small clusters of white flowers open from late winter to mid-spring and are followed by steel blue drupes. Viburnum dentatum Known as Arrowwood because of its use for that purpose by native Americans, this large deciduous shrub or small tree has rather unexciting greenish white flowers and is often rather an untidy grower. However, this eastern North American species comes into its own in autumn as the black drupes ripen and the foliage develops vivid red tones. Viburnum erubescens This early summer-flowering, deciduous or semi-evergreen shrub is native to the Himalayas and found in mountainous areas as far south as Sri Lanka. The flowers are white flushed with pale pink and are followed by red fruits that blacken when ripe. Viburnum farreri Although less common than the hybrids raised from it, this 3m tall, northern Chinese, deciduous species is well worth growing for its very fragrant pink-tinted white flowers that open from mid-winter. If pollinated the flowers develop into red fruit that blackens when ripe. Viburnum japonica Like V. davidii, this evergreen shrub is most often seen used as a large-scale groundcover, though it's capable of growing well over 1m tall. A native of Japan, it has deep green, glossy leaves and bronze new growth. Loose clusters of white flowers in late spring are followed by red drupes. Regular trimming after flowering will keep it compact. Viburnum lantana The Wayfaring Tree, a species widespread in Eurasia, is a deciduous, sometimes tree-like shrub with heads of rather dull creamy-white flowers in spring. It is grown more for its fruit, which is red ageing to black, and its foliage. The leaves are attractive at all stages, starting out deep green and velvety, aging to dark green fine hairs coating their undersides, then developing gold and russet tones in autumn before falling. Viburnum opulus Found from Europe and North Africa to Central Asia, the Guelder Rose is a large deciduous shrub with mid green, deeply lobed, maple-like leaves that redden in autumn. Rounded heads of white flowers in spring are followed in late summer by red fruit. The bark contains a glucoside, viburnine, that has uses in herbal medicine, particularly in the control of spasms and cramps. 'Roseum' (syn. 'Sterile') is a cultivar with large heads of all-sterile flowers. It is known as the snowball tree because of the size and colour of its flowerheads and is far more widely grown than the species. Viburnum plicatum From China and Japan, this deciduous shrub grows to around 3m tall and has rounded, mid green, hazel-like leaves with serrated edges. Flattened clusters of white flowers in open in spring and may be followed by red fruit that blackens when ripe. The tiered branches are tiered make this species very distinctive and are a feature that is particularly apparent in the cultivar 'Mariesii'. 'Rosacea' is a cultivar with bronze young foliage and pink-tinted, all-sterile flowers in large heads. Viburnum rhytidophyllum While this late spring- and summer-flowering Chinese species has reasonably attractive heads of creamy-white blooms, it's really a foliage plant. The leaves are up to 20cm long and very heavily textured. The upper surfaces are slightly glossy and the undersurfaces are heavily coated in a grey to tan felt. 'Variegatum' is a cultivar with gold-splashed foliage. If the flowers interest you, look for 'Roseum', which has pinkish red blooms. Viburnum tinus Once one of the most popular hedging plants, though not so common now, the Laurustinus is a 3m tall, evergreen shrub from southern Europe and North Africa. It has leathery, bark olive green and in late winter and spring puts on a good display white flowers that often develop pink tints. Variegated foliage cultivars often have brighter pink flowers. Viburnum trilobum As described earlier, the High-bush Cranberry is a 2.5m tall, deciduous North American shrub. It has lobed, maple-like leaves that often turn bright red in autumn. Flat heads of white flowers open in spring and large clusters of very bright red berries in late summer to autumn. It is one of the best hardy shrubs for colour and quantity of fruit. ****** A little searching, especially through mail order catalogues, will yield quite a few more species, hybrids and cultivars. Or you could try propagating your own. The species may be raised from seed, which is usually best stratified, but hybrids and cultivars must be propagated vegetatively, most commonly by semi-ripe cuttings. Article Source: http://EzineArticles.com/1810