If you can overwater potted plants in soil, then how come cut flowers don’t drown in vases filled with water?
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Cut flowers don’t have roots any more. Putting them in water helps keep them looking fresh for a while longer but they eventually die after a few days anyways. I know we’re taught that plants convert CO2 to Oxygen and that’s a bit misleading. Plants still need oxygen, and they get that oxygen through their roots. Waterlogged soil prevents any oxygen from getting to the plants and their roots eventually rot and the plant dies. During photosynthesis plants convert CO2 to glucose, and the water from the soil into Oxygen, so it’s not the CO2 being directly converted into Oxygen.
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