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What are plants? - Horticulture Course
Wikipedia defines this as: “Plants are a major group of life forms and include familiar organisms such as trees, herbs, bushes, grasses, vines, ferns, mosses, and green algae. About 350,000 species of plants, defined as seed plants, bryophytes, ferns and fern allies, are estimated to exist currently. As of 2004, some 287,655 species had been identified, of which 258,650 are flowering and 15,000 bryophytes.” It would seem that plants are very complex living things that range from microscopic to huge living organisms. Some plants are so old they were probably alive in the time of Christ, and others only last 24 hours. Those plants we work with in the horticulture business are called “higher plants” this is due to their complex elaborate physical structure. “Lower plants” are just as important due to the affects they have on the “higher plants” with their impact to the landscape and nursery materials. The typical lifecycle for plants start with a living seed in the right environment conditions that cause it to split and create new cells. Soon a root will emerge and grow downwards. Soon after a shoot will grow upwards. After a certain length of time the shoot will begin to form leaves, flowers and then seeds. After it has seeded (Days, Months, or Years) it dies and the cycle starts all over again. To learn about growing plants we must learn how plants are made up and how they grow and carry nutrients. Once we learn these basics it makes it much easier to grow and understand the needs of our plants. Next we will discus Plant cells.
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