This can be handy if you have a short growing season like we do in here in Vermont. I’m not scientific about the timing or quantity, and our sunflowers always do well. The life cycle of a sunflower consists of germination, growth, flowering, seed development and death. Native to the central and southwestern United States, Maximilian sunflower, (Helianthus maximiliani), grows wild in rangelands and prairies. How to Care for a Maximillian Sunflower. At this adult stage, the blooming sunflower does not follow the sun's path. Sunflowers reproduce by large seeds that form in the center of their flowerhead. Once the seeds fully develop, they must be harvested or protected quickly from the … No need to wonder about how to care for sunflowers in pots, this annual plant has the same needs for water, fertilization and sunlight in either gardens or containers. Plant reproduction comes in two types: sexual and asexual. Updated on: 2 Dec 2019 by Anupriya Narsaria. Seeds of several varieties of sunflower. While many varieties of sunflower exist, the basic phases of the life cycle remain the same. Floral symmetry in sunflower and the similarity of the double-flowered mutant to van Gogh's sunflowers. This process is called pollination. is a sign of summer and a common sight in decorative motif, but the sunflower has a … Entire inflorescences (A, C, E) and individual florets (B, D, F) from wildtype (A, B), double-flowered (C, D) and tubular (E, F) sunflower individuals. Planting sunflower seeds. They were famously used after the 1989 Chernobyl nuclear accident to remove radioactive elements from the soil. Asexual reproduction is through stems, roots and leaves. Plants reproduce sexually through the fusion of male and female gametes in the flower. Different varieties of sunflowers, range from fifty to five hundred centimeters in height. Without pollination, plants cannot create seeds. In other words, it can grow up to twelve feet tall, and the head can grow up to three inches wide. Bees provide flowers with the means to reproduce, by spreading pollen from flower to flower in a process called pollination. This genus of flower has both perennial and annual species. Finally, I want you to do me a little favour. Why do my sunflowers begin to face the ground? The sunflower is a monoecious plant (having both male and female flowers on the plant at the same time). Flowers benefit bees by providing them with all the food their colonies need, to survive. Male & Female Parts of the Sunflower Plant. The sunflowers grow up to five inches in diameter on stalks up to three feet tall. Sunflowers are even used to decontaminate polluted ground – they suck up toxins like lead, arsenic and uranium from the soil. How Do Plants Reproduce? Pollen is carried by insects or blown by the wind from one flower to another. 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