Hortensia flowers.

Botanical Name: Hydrangea macrophylla                                                 Common Name: Big leaf hydrangea, Hortensia, Lace-cap hydrangea, Florist's Hydrangea                                                                                                                     This is one of the most widely recognized species of hydrangeas. It boasts a plentiful number of cultivars. The species is divided into two groups: the Hortensias (or "mopheads") have globe-shaped flowers made up of large male flowers, and the Lacecaps have flattened flowerheads, with central, female blossoms ringed in larger, male blossoms. 

Noteworthy characteristics: Lacy, horizontal blossoms and large globes of flowers in rich colors.Care: Grow in moist, but well-drained soil, in sun to partial shade. Provide shelter from drying winds. These hydrangeas flower on the previous season's wood, and can be maintained by cutting back just to the first pair of buds beneath the old flower in spring. Propagation: Sow seed in a cold frame in spring; take softwood cuttings in early summer, hardwood cuttings in winterProblems: Gray mold, slugs, powdery mildew, rust, ringspot virus, leaf spots.

Crown imperial flowers pictures.

 BotanicalName: Fritillaria imperialis                          Common Name: Crown imperial                                      

 Native to Iran, Afghanistan and the foothills of the Himalayas, The flower grows 3 to 4 feet tall on a stalk that ends in a tuft of green fronds somewhat like palm trees with bright, vivid flowers hanging below. Crown Imperial flowers will survive and come up in the spring. They appear in April or May and bloom for about 3 weeks, 

 This species draws much attention with its striking gaiety of colour and form. Its large, bell-shaped flowers in shades of orange, yellow, and red dangle from tufts of shiny green leaf bracts. Sitting atop sturdy, 3-foot stalks, the flowers make a surprising and regal statement in the late spring garden.

 Care: These bulbous perennials needs fertile, well-drained soil in full sun. Plant at four times their own depth. The hollow-centred bulbs do best planted on their sides and surrounded with sharp sand.

 Propagation: Sow seed in a cold frame in fall, provide winter cold treatment, and then move to cool greenhouse. Divide offsets in late summer.
Problems: Rust, leaf spot.

• 1
  Cultivate the soil in an area of the landscape that receives a minimum of six hours of sunlight per day. Till or turn the soil over 6 to 8 inches deep, then mix in 2 or 3 inches of compost, perlite or coarse sand. This helps promote good drainage, which is a must for crown imperial flowers.
• 2
  Dig holes that are 6 inches deep and spaced 6 to 12 inches apart.
• 3
  Sprinkle coarse sand in the grooves and holes of the bulbs. If water gets trapped in the bulbs, they will rot.
• 4
  Fill the hole with 1 inch of coarse sand, then set one bulb in each hole on its side. Cover the bulbs with 1 inch of sand.
• 5
  Backfill the soil to fill in the rest of the hole, tamping it lightly; do not pack the soil firmly. Water the area with 1 inch of water.
• 6
  Cover the area with 2 inches of mulch after the first freeze the first winter, especially in USDA plant hardiness zones 5 and 6.
• 7
  Remove mulch in the spring and water with 1/2 to 1 inch of water each week (when rain is scarce) from spring until summer. Prune faded flower stalks, but leave the foliage intact until fall or early winter. Prune them to the ground after they wither.

Each plant forms a single stalk that blooms a cluster of tubular flowers of striking colours including red, yellow and orange. 

Cornflowers pictures.

 Description: Bachelor's button grows one to three feet tall with innumerable fluffy but trim round flowers held above the rather sparse, long and narrow gray-green leaves. The habit of growth is relatively loose, except with compact new cultivars.

 The inhabitant of Europe has such common names as Cornflower, Basket flower, Boutonniere and Bluebottle.

The plant may reach the length of 90 cm being borne on grey-greenish branch-like stems. The leaves of Bachelor�s button grow to 1-4 cm. Its blossoms usually come in bright blue color, being borne in flower heads named capitula with the diameter up to3 cm.  The blooms represent a ring of a several big florets that surround a central cluster of disc florets. 

Centaurea cyanus is cultivated as a gardening ornamental plant with other cultivars coming in such pastel colors as pink and purple. Sometimes the plant serves as a culinary ornament. It makes a tea component and is popular in the Lady Grey blend of Twinings.

 Propagation: To grow seedlings indoors, germinate at 65 degrees Fahrenheit four weeks before planting out. Germination time is 7 to 14 days.

 Scientific name: Centaurea cyanus

How to grow: Full sun in Average soil is good. For earliest bloom, sow seeds outdoors in the fall so they will start to grow before the first frost and bloom the next spring. Otherwise, sow seeds outdoors as early in the spring as the soil can be worked. Thin to 8 to 12 inches apart.                                                                        Having the botanical name of Centaurea cyanus, the annual flowering plant Bachelor�s button represents the family Asteraceae.