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Petunia seeds germinate in 5 to 15 days. Petunias can tolerate relatively harsh conditions and hot climates. They need at least five hours of sunlight every day. They grow well in low humidity, moist soil. Young plants can be grown from seeds. Petunias should be watered once every two to five days. In drier regions, the plants should be watered ...
Petunias are generally insect pollinated, with the exception of P. exserta, which is a rare, red-flowered, hummingbird-pollinated species. Most petunias are diploid with 14 chromosomes and are interfertile with other petunia species, [ 9 ] [ 10 ] as well as with Calibrachoa .
calibrachoa "million bells" in a hanging basket hybrid 'Superbells Strawberry Punch'. Calibrachoa is a genus of plants in the Solanaceae (nightshade) family.They are evergreen short-lived perennials and subshrubs with a sprawling habit, with small petunia-type flowers.
Ruellia humilis (wild petunia, [1] fringeleaf wild petunia, [2] hairy petunia, low wild petunia) is a species of flowering plant in the family Acanthaceae. It is native to the eastern United States. [1] It is grown as an ornamental plant. [3]
Orange petunias were created in 1987 by a team of researchers at the Max Planck Institute for Plant Breeding Research in Cologne, led by geneticist Peter Meyer.In a paper published in Nature the same year, the researchers demonstrated that the insertion of a gene from maize into a petunia would cause the plant to produce pelargonidin, turning its flowers salmon. [1]
It is a fast-growing plant, with trailing stems growing to 0.9–1.8 m (3–6 ft). The leaves are large, nearly circular, 3 to 15 cm (1 to 6 in) in diameter, green to glaucous green above, paler below; they are peltate, with the 5–30-cm-long petiole near the middle of the leaf, with several veins radiating to the smoothly rounded or slightly lobed margin.
Petunia violacea Lindl. has been reported to be used as a hallucinogen in Ecuador, where the plant has the vernacular name shanín.The drug is said to cause sensations of levitation and flight – a type of hallucination often associated with the use of the more toxic hallucinogenic plants of the deliriant type; e.g., the tropane-containing Atropa and Hyoscyamus, active constituents of the ...
Ruellia is a genus of flowering plants commonly known as ruellias or wild petunias. [3] They are not closely related to petunias (Petunia) although both genera belong to the same euasterid clade. The genus was named in honor of Jean Ruelle (1474–1537), herbalist and physician to Francis I of France and translator of several works of ...