1/20/2023 0 Comments Dahlia contraste![]() 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. This great variety results from dahlias being octoploids-that is, they have eight sets of homologous chromosomes, whereas most plants have only two. Flower forms are variable, with one head per stem these can be as small as 5 cm (2 in) diameter or up to 30 cm (1 ft) ("dinner plate"). There are 42 species of dahlia, with hybrids commonly grown as garden plants. A member of the Compositae (also called Asteraceae) family of dicotyledonous plants, its garden relatives thus include the sunflower, daisy, chrysanthemum, and zinnia. Water your dahlias if they are not getting about an inch (2.5 cm.) of rainfall per week.ĭeadhead the spent blooms as they expire and you will enjoy dinnerplate dahlias from midsummer through the fall.Dahlia ( UK: / ˈ d eɪ l i ə/ or US: / ˈ d eɪ l j ə, ˈ d ɑː l-, ˈ d æ l j ə/) is a genus of bushy, tuberous, herbaceous perennial plants native to Mexico and Central America. Use a typical flower fertilizer about twice a month. Your soil for growing dahlias should be rich, but these flowers will also respond well to regular fertilizing. These plants grow tall, up to four feet (1 m.), so also choose a site where they won’t overshadow other plants. To get the biggest blooms from your dinnerplate varieties, choose a sunny spot with rich soil that drains well. ![]() ![]() Whether you’re starting from seed or transplants, don’t put your flowers outside until you are sure there will be no more frosts. Watch your flowers and use stakes or some other type of support if they start to lean or flop over. Since the blooms are so large, though, staking and support may be more important with these varieties.
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