Deficiencies
Nitrogen deficiency
Plants74
Topics74
Leaves turn pale green to yellow, growth is stunted. Visible especially on older leaves. Yellowing leaves
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Deficiencies
Deficiencies in the garden: search and filter 18 topics such as Nitrogen deficiency, Potassium deficiency, Magnesium deficiency, Iron deficiency, Boron…
Plant health
Nutrient deficiencies
18 topics
Nutrient deficiencies usually show through leaf color, growth, flowering, and fruit development. Yellow leaves do not always mean nitrogen deficiency: pH, waterlogging, drought stress, cold soil, or damaged roots can also block nutrients. Always check site and care before fertilizing.
PestsPestsGarden pests often show up first through chewing damage, sticky residue, distorted shoots, visible larvae, or insects on young…DiseasesDiseasesPlant diseases are often linked to fungi, bacteria, viruses, or weak growing conditions. Watch for leaf spots, coatings, wilting…DeficienciesNutrient deficienciesNutrient deficiencies usually show through leaf color, growth, flowering, and fruit development. Yellow leaves do not always mean…ProblemsPlant problemsMany plant problems are not a single disease but a mix of site, weather, care, and stress. Sunscald, frost damage, waterlogging…SymptomsSymptom pagesStart here when you only know the visible symptom.
Deficiencies
Potassium deficiency
Plants47
Topics47
Stunted growth Lack of potassium, important for water balance and fruit development.
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Magnesium deficiency
Plants32
Topics32
Yellowing (chlorosis) between the leaf veins Magnesium is a central component of chlorophyll. Deficiency leads to reduced photosynthetic performance.
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Iron deficiency
Plants27
Topics27
Yellowing of leaves, especially younger ones, while the veins remain green. Caused by iron deficiency in the soil or poor availability. Chlorosis of younger leaves, where leaf veins remain green while the tissue between them turns yellow. Often occurs with high pH or waterlogging
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Calcium deficiency
Plants13
Topics13
A lack of calcium can lead to growth disorders and problems with fruit development. Lack of calcium, which can lead to physiological disorders such as bitter pit.
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Phosphorus deficiency
Plants9
Topics9
Leaves turn dark green to bluish, growth is severely stunted. Visible especially in cool temperatures. Dark green to purplish discoloration of leaves
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Iron Chlorosis
Plants4
Topics4
Occurs in soils with too high pH, as iron cannot be absorbed well then. Yellowing of leaves between veins, while veins remain green. Often occurs in alkaline soils.
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Nitrogen
Plants4
Topics4
Pale, yellowish leaves and stunted growth Leaves become pale green to yellow
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General Nutrient Deficiency
Plants3
Topics3
Stunted growth Hyssop is a light feeder, but in very poor soils or with long-term cultivation without nutrient replenishment, deficiencies can occur, often manifesting as general yellowing and weak growth.
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