07
Jan
2010
Hydrangea - Hortensia
Trees and shrubs | Magnoliopsida

Scientific name - Hydrangea spp.

Synonyms --

Popular names - hydrangea, hydrangea, Ortensia.

Distribution and Habitat - originally from the Himalayas, to Japan, Philippines and Java, Chile.

Description - genus includes 80 species, the most popular are H. macrophylla, H. arborescens, H. paniculata and H. quercifolia. Shrub or voluble species with opposite leaves. Flowers solitary or grouped in inflorescences type corymb, Raceme. Ovary compound, 2-10 rags, below. Capsule truncata. Seeds numerous, ribbed.

Growth rate - fast.

Tolerances - temperatures up to -5 ° C.

Requirements - semiumbra prefer, but grow well in direct sunlight, if not lack water. They prefer sunny places in climele with high humidity and shady places in places where humidity is low.

Management - to have a lot of peat land and acid is added once a year aluminum sulphate and alkaline land to add lime. Too much lime will not damage plants, and if too little will not influence the color of flowers. Changing soil pH is four-six months before the season of prosperity.

Hortensia has modest needs generally requires regular cutting the crown. For hydrangeas planted in pots to shorten all branches after blooming, leaving only a few leaves on each stem, and transplanting plants in two to three years.

Cuttings should be made immediately after the flowers have withered. Do not cut old wood that ensure flowering in successive years.

If plants are exposed to winter winds, it must be protected floriferi buds. It connects all the branches with a thick cloth bag and will get out when buds begin to swell (it is open).

PropagationE - seedlings shoots by one or two internoduri, from May to July. The new plants are planted at 0.9 - 1.2 m between plants and 1.5-2.4 m between rows.

Hortensia is grown on fertile ground in autumn or spring, enriched with peat in pots of 40-60 cm wide and at least 30 inches deep.

Diseases and pests - trips, aphids, mites, snails, Botrytis cinerea. Mites attack is recognizable by the appearance of yellow spots p leaves. Leaves with small dots of orange and yellow face inside is caused by rust.

Rhopalosiphum aphids attacking dianthi are lujerii November.

Persicae attack Eulecanium shady parts of the crown.

Phillosticta hydrangeae cause stains brown-gray branches and leaves.

Partners garden - Eryngium giganteum, Polystichum setiferum, Spiraea japonica, Spiraea x bumalda.

Cultivars - H. macrophylla 'Nikko Blue'presents small blue flowers. H. arborescens 'Annabella' 25-30 cm wide, creamy white flowers appear from June to September. H. paniculata 'Grandiflora' sterile white flowers arranged in panicule 15-20 cm long. H. quercifolia 'Snowflake' Double flowers.

Properties and Uses - ideal for shrub borders or as groups on lawns.

Curiosity - hydrangeas produce blue or purple flowers and pink flowers on land acidic alkaline land.

In Europe it was introduced by the naturalist Philibert Commerson, XVII century.

Photos
Top
See also
Top
Trees and shrubs
Cassia angustifolia

Cassia angustifolia - ornamental shrub, belongs to the family Fabaceae, native of northern Africa.

 
Akebia quinata

Liana Wood, single, semi-evergreen, perennial. Strain gray-brown with prominent lenticele. Leaves alternate, palmately-compound, 5 folio ribbed stipelate. Oblonga call to Foliolele ovat-elliptic, the round, ribbed 4.5 to 10 cm long. Raceme axillary blossom, clocks, male flowers are arranged terminal

 
Campsis radicans

Genus was created by Portuguese botanist João de Loureiro (1717-1791) in the 1790 Flora Cochinchinensis for Campsis grandiflora. Linne named species with TECOM radicans and Thunberg gave the name of Bignonia radicans.

 
Laurus nobilis

Laurus nobilis - on time and stay Greeks, laurel branches were used to make crowns for the heads of heroes, and to honor poets.

 
Nageia fleuryi

Evergreen tree. Leaves opposite, coriacee, oblong to elliptic-lanceolata, 8-18 x 2-4.5 cm, top acuminata, petiole 2-4 mm long. Male cones are cylindrical, grouped 3-4 at underarms, female cones are solitary, the armpit leaves.

 
Magnoliopsida
Prunus armeniaca - apricot

Prunus armeniaca - shrub or small tree, native of northeastern China, knew and cultivated worldwide for its edible fruit.

The seeds of Prunus armeniaca extract oil used in perfume industry, cosmetics and pharmacy.

 
Salpichroa organifolia

Salpichroa organifolia - perennial, rhizomatic and subfrutescenta. Hailing from South America, naturalized and naturalized French Atlantic coast, around the Mediterranean, Corsica and Spain wet substrates increases from 0 to 600 m altitude.

 
Thevetia peruviana - leandru yellow

Evergreen shrub, 6 m high. Stem erect, cylindrical, branched, smooth, green, presents latex. Leaves simple subsesile, alternate, arranged spiral limb linear, entire edge, top acute, glabra, 8-16 cm long.

 
Ranunculus ficaria

Ranunculus ficaria is a member of Buttercup Family.

 
Tussilago windbag - coltsfoot

From the Latin Tussilago tussis = cough on the plant's medicinal properties, windbag is the old name of poplar because of similarities between these species leaves.

Windbag Tussilago Tussilago is the only species of the genus.

Dioscorides, used potbal leaves as a substitute for tobacco, and to treat cough and asthma.

 
   Add to iGoogle
Last posts

Categories

Links