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Nitrogen deficiency is a deficiency of nitrogen in plants. This can occur when organic matter with high carbon content, such as sawdust, is added to soil. [ 1] Soil organisms use any nitrogen available to break down carbon sources, making nitrogen unavailable to plants. [ 1] This is known as "robbing" the soil of nitrogen.
Autumn leaf color is a phenomenon that affects the normally green leaves of many deciduous trees and shrubs by which they take on, during a few weeks in the autumn season, various shades of yellow, orange, red, purple, and brown. [ 1] The phenomenon is commonly called autumn colours[ 2] or autumn foliage[ 3] in British English and fall colors ...
Maclura pomifera, commonly known as the Osage orange ( / ˈoʊseɪdʒ / OH-sayj ), is a small deciduous tree or large shrub, native to the south-central United States. It typically grows about 8 to 15 metres (30–50 ft) tall. The distinctive fruit, a multiple fruit, is roughly spherical, bumpy, 8 to 15 centimetres (3–6 in) in diameter, and ...
Lavender (Lavandula officinalis)Bushy with grey-green foliage and tall purple or white flower spikes, Lavender is an easy-to-grow plant that does best in a sunny spot with well-drained soil.
An algal bloom or algae bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems. It is often recognized by the discoloration in the water from the algae's pigments. [ 1] The term algae encompasses many types of aquatic photosynthetic organisms, both macroscopic multicellular organisms like ...
Tillandsia is a genus of around 650 species of evergreen, perennial flowering plants in the family Bromeliaceae, native to the forests, mountains and deserts of the Neotropics, from northern Mexico and the southeastern United States to Mesoamerica and the Caribbean to central Argentina. Their leaves, more or less silvery in color, are covered ...
The plant grows well in bright light, but also tolerates partial shade at room temperatures from 12 °C through 25 °C. A plant's leaves may turn yellow and fall when days are shorter in autumn which is not a sign of disease, and the plant will restart its growth without problem the following spring. A tree is mature when 4–5 years old.
Chlorosis. In botany, chlorosis is a condition in which leaves produce insufficient chlorophyll. As chlorophyll is responsible for the green color of leaves, chlorotic leaves are pale, yellow, or yellow-white. The affected plant has little or no ability to manufacture carbohydrates through photosynthesis and may die unless the cause of its ...