Scientific name - Hydrangea spp.
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.
Trees and shrubs
Dalechampia spathulata is a shrub of the Euphorbiaceae family. Most species belonging to the genus Dalechampia multiply naturally by seeds.
Species native to North America, lies at altitudes up to 1500 m in Romania is less common in parks and gardens as ornamental species.
Leaves, branches and bark is an aromatic oil extracts used in medicine.
Acer tataricum - tatarian maple
Acer tataricum - interest forest and ornamental tree grown in parks and gardens.It is used in dyeing natural fibers.
Shrub 4 m high, dense crown. Bark brown, rough. Leaves persistent, coriacee, simple, language spatulate, entire edge, top round, the obovata, central rib obvious, and glossy dark green upper side, more open bottom, glabra, arranged in vertical false. Blossom umbela
Eucalyptus globulus Labill.
Evergreen tree, 25-70 m high x 5 m diameter trunk base. Ritidom rough, exfoliating in gray is the upper of the trunk and branches, in long strips. 12-15 x 12-25 mm buds. Leaves are opposite, in pairs, united among themselves in the green-glauca, 6-15 cm long, adult leaves alternate, 15-35 cm long, lanceolata and arched, the asymmetric top long-acuminata, sturdy stalks.
Geranium pratense - beak stork
Herbaceous perennial, stems pubescent, erect, branched dichotomy. Leaves opposite, the parties to lobate-acute, 5-7 lobed, margin evening. Flowers symmetric radiator Corola blue-purple, 5 petals obovata, 2 cm, 5 sepa lanceolata, mucronata, ovary superior, 10 stamens united at the base. Blooms in June-August.
Cleome spinosa - flower spider
Herbaceous annual. Stem herbaceous, simple, viscid-pubescent, 1 m high. Leaves alternate, petiolate, palmate-compound. Petiole 10-15 cm long, glandular and pubescent. Folio 5-7, onblong-anceolate to elliptic, top acute - acuminata, the conical, 15 cm long, margin entire, glandular-pubescent on the upper surface and slightly pubescent on the underside. Raceme blossom, dense, compact, terminal.
Cosmos sulphureus - used as an ornamental species for borders or groups, in association with Asclepias curassavica, Coreopsis tinctoria, Oenothera fruticosa, Rudbeckia hirta, Salvia farinacea, Solidago canadensis, Tagetes erecta.
Acacia sieberiana - tree, 3-25 m tall, rounded crown. Increase in savannah, in semi-arid regions of Africa, from 0-1850 m altitude.