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Heliotropism, a form of tropism, is the diurnal or seasonal motion of plant parts (flowers or leaves) in response to the direction of the Sun. The habit of some plants to move in the direction of the Sun, a form of tropism, was already known by the Ancient Greeks. They named one of those plants after that property Heliotropium, meaning "sun turn".
Tulip bulbs are typically planted around late summer and fall, in well-drained soils. Tulips should be planted 10 to 15 cm (4 to 6 inches) apart from each other. The recommended hole depth is 10 to 20 cm (4 to 8 inches) deep and is measured from the top of the bulb to the surface. Therefore, larger tulip bulbs would require deeper holes.
The tulip tree is a plot element in Edgar Allan Poe's short story "The Gold-Bug" (1843). [43] Walt Whitman observed in 1876-77 a 70 foot tall tulip tree and how "from top to bottom, seeking the sweet juice in the blossoms, it swarms with myriads of these wild bees, whose loud and steady humming makes an undertone to the whole." He referred to ...
Tulip trees thrive in full sun, but can suffer if exposed to extreme heat. They prefer a moist, temperate climate and are hardy in regions where average minimum temperatures are above -30 ...
Sunflowers with the Sun behind them. Sunflowers do not always point to the Sun. Flowering sunflowers face a fixed direction (often east) all day long, but do not necessarily face the Sun. [123] However, in an earlier developmental stage, before the appearance of flower heads, the immature buds do track the Sun (a phenomenon called heliotropism ...
Magnolia × soulangeana (Magnolia denudata × Magnolia liliiflora), the saucer magnolia or sometimes the tulip tree, [1] [2] [a] is a hybrid flowering plant in the genus Magnolia and family Magnoliaceae. It is a deciduous tree with large, early-blooming flowers in various shades of white, pink, and purple.
It is suitable for growing in USDA Growing Zones: 3 to 8, in full sun and soils with medium moisture retention or well-drained soils. [10] Seed germination of the tulip has been studied, and it was concluded that stratification for 7 weeks was more effective treatment on studied traits than 5 weeks. Moreover, cold stratification was a better ...
Tulipa sylvestris - MHNT. Tulipa sylvestris, the wild tulip [3] or woodland tulip, [4] is a Eurasian and North African species of wild tulip, a plant in the lily family.Its native range extends from Portugal and Morocco to western China, covering most of the Mediterranean and Black Sea Basins, and Central Asia.