FFF329 - DAHLIA

Dahlia is a genus of bushy, tuberous, herbaceous perennial plants native mainly in Mexico, but also Central America, and Colombia. A member of the Asteraceae dicotyledonous plants, related species include the sunflower, daisy, chrysanthemum and zinnia.

There are at least 36 species of dahlia, with hybrids commonly grown as garden plants. Flower forms are variable, with one head per stem; these can be as small as 5.1 cm diameter or up to 30 cm ("dinner plate"). This great variety results from dahlias being octoploids (that is, they have eight sets of homologous chromosomes), whereas most plants have only two. In addition, dahlias also contain many transposons (genetic pieces that move from place to place upon an allele), which contributes to their manifesting such great diversity.

The stems are leafy, ranging in height from as low as 30 cm to more than 1.8–2.4 m. The majority of species do not produce scented flowers or cultivars. Like most plants that do not attract pollinating insects through scent, they are brightly coloured, displaying most hues, with the exception of blue.The dahlia was declared the national flower of Mexico in 1963. The tubers were grown as a food crop by the Aztecs, but this use largely died out after the Spanish Conquest. Attempts to introduce the tubers as a food crop in Europe were unsuccessful.

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FFF154 - AUSTRALIAN BLUEBELL

Wahlenbergia stricta, or Australian Bluebell, Tall or Austral Bluebell, is an Australian wildflower from the Campanulaceae family. It is considered the most commonly encountered of the Wahlenbergias] It is found in all Australian states but not the Northern Territory.

It is often seen growing by the side of the road, enjoying the extra runoff. W. stricta is a perennial herb flowering mainly in spring or summer with pale blue bell-like flowers. The leaves are long and linear, 5–70 millimetres (0.20–2.76 in) long. The five-petalled flowers are erect on long, slender stems and about 6–20 millimetres (0.24–0.79 in) in diameter. It forms thin, carrot shaped tubers.

Australian bluebells are generally easily propagated by division or root cutting. The seed is a very fine, black powder. It germinates readily in a few weeks and is best directly sown into tubes or cells as the seed and plant are very small and hard to separate and prick out.

There are a number of common cultivars, including various shades of blue from a saturated blue similar to #00f through to white. Various double forms are available. To maintain a cultivar propagation must be by vegetative means (division or cuttings). Once established W. stricta is very hardy - the pot can be dried out completely and the plant reduced to a tuber, yet it will reshoot when the rain comes. It is hardy in a range of soils from sand to gravel, clay to humus.

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FFF70 - CYCLAMEN

Cyclamen persicum, the Persian cyclamen, is a species of flowering herbaceous perennial plant growing from a tuber, native to rocky hillsides, shrubland, and woodland up to 1,200 m above sea level, from south-central Turkey to Israel and Jordan. It also grows in Algeria and Tunisia and on the Greek islands of Rhodes, Karpathos, and Crete, where it may have been introduced by monks. Cultivars of this species are the commonly seen florist's cyclamen.

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