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Species and varieties:

Centaurea crocodylium

Centaurea cyanus

Centaurea dealbata

Centaurea gymnocarpa

Centaurea ragusina

Chromolaena odorata grows in many soil types but prefers well-drained soils, (PIER, 2003). It does not tolerate shade and thrives well in open areas (FAO). Requires disturbance to become established. It will not grow in waterlogged or saline soils. It can occur in most tropical and sub-tropical terrestrial habitats below 1000 m altitude, except for undisturbed rainforest. It requires at least 1200 mm annual rainfall, but tolerates severe dry seasons

Chromolaena odorata is used as a traditional medicine in Vietnam, the aqueous extract and the decoction from the leaves of this plant have been used throughout Vietnam for the treatment of soft tissue wounds, burn wounds, and skin infections.

Excellent cut flowers. Commonly grown in the flower garden, it is cultivated for its edible young shoots in China.

Chrysocephalum apiculatum (formerly Helichrysum apiculatum) is a very variable species. It is usually a small, spreading perennial or shrub up to about 0.3 metres high by 0.5 to 1.5 metres in width. Some forms spread by suckering. The linear or lance-shaped leaves are often silvery or greyish in appearance due to the presence of dense hairs and may be between 10 and 60 mm in length by about 5 - 15 mm wide. The bright yellow flower heads appear in clusters at the ends of the stems.

Propagation is easy from cuttings taken at any time of the year.

Coreopsis typically bloom bright yellow, daisy like flowers all summer and into the fall.

Sulphur cosmos is native to Mexico and introduced around the world.This species of Cosmos is considered a half-hardy annual, although plants may re-appear via self-sowing for several years.

The Globe Artichoke (Cynara cardunculus var. scolymus) is a perennial thistle originating in Southern Europe around the Mediterranean. It grows to 1.4–2 metres (4.6–6.6 ft) tall, with arching, deeply lobed, silvery, glaucous-green leaves 50–82 centimetres (20–32 in) long. The flowers develop in a large head from an edible bud about 8–15 centimetres.

There are many color combinations to choose from, except the elusive blue which is covered by the wide range of violet and mauve varieties. Sizes range from the smallest types, called Topmix or Lilliput Dahlias to the giants that have blooms over a foot in diameter carried on powerful stems.

Purple Coneflowers produce large, fragrant pink flowers blooms at the beginning of April and May. The 3 to 5 ft flower stalks make them an excellent background planting for your landscape, or in a butterfly garden. They are excellent for cut flowers, lasting a week or longer after being cut. Cutting the flowers will promote an extended blooming season. The perennial plant does best when planted in full sun in any moist, well-drained garden soil, but may also be grown in partial sun. The plant is somewhat drought resistant once established. Coneflowers are hardy in USDA zones 3-9 Propagation is by seed, or by division in spring or fall. Root cuttings taken in the fall may also be successful. Like many perennials, Purple Cone Flowers should be lifted and divided after blooming when the plant's crown becomes to crowded. Usually this occurs in the third or fourth year; this is also when roots can be harvested for medicinal use. Most Purple Cone Flower cultivated for medicinal use is Echinacea purpurea and both the root and the above ground parts are used. Echinacea has been used as an herbal remedy for centuries. Melvin Gilmore writes that the Northern Plains Indians used it "as an antidote for snake bite and other venomous bites and stings and poisonous conditions...It was employed in the smoke treatment for headache in persons and distemper in horses". There are nine known species and it is suspected that all have similar medical properties, but the research is ongoing and no conclusions have yet been determined.

This plant is used for deriving active ingredient for plant hormone Cirkon

They form clumps of deeply divided, spiny leaves, which are gray-green above and fuzzy-white beneath. They produce round, compact heads of tiny pale blue or grayish-white flowers, resembling thistles, atop gray-white stems in late summer. Globe Thistles can live in any well-drained soil as long as it isn't too rich. They will survive in poor, dry soil. They should be in a position with full sun. These plants can be increased by seeds or division in the fall, or by root cuttings in the winter. Varietes: E. Ritro, E. Bannaticus, E. Gmelinii and E. Sphaerocephalus.