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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]
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 ...
If you want a colorful show of petunias, nemesia, diascia, or snapdragons in the spring, you’re much better off planting them now.
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Discover the best time to plant spring bulbs and learn what to do if you're planting late.
Petunias can tolerate relatively harsh conditions and hot climates, but not frost. They need at least five hours of sunlight every day and flourish in moist soil and conditions of low atmospheric humidity. They are best grown from seed. Watering once a week should be sufficient in most regions.
While plants have adapted to the reception of real sunlight, full spectrum light bulbs often mimic the emphasis of wavelengths of sunlight enough that plants are stimulated to grow. Full spectrum lighting also enhances the natural coloration of fish, plants and other aquatic elements in an aquarium, which are often discolored by artificial lights.