Lemon Tree Problems
Citrus limon
Lemon trees are productive citrus that thrive in full sun with regular feeding, but are sensitive to cold, prone to leaf drop from stress, and a magnet for scale, spider mites, and citrus leaf miner.
All Lemon Tree Problems
⚠ ModerateLemon Tree Dropping Leaves
The tree sheds a noticeable number of leaves, sometimes suddenly, even though remaining leaves may look otherwise healthy.
⚠ MinorLemon Tree — Yellowing Leaves on Lemon Tree From Nutrient Deficiency
Leaves yellow in various patterns — overall pale colour, yellowing between green veins, or yellow blotching — depending on the specific nutrient involved.
⚠ MinorLemon Tree Not Producing Fruit
The tree grows and flowers but sets little to no fruit, or fruit forms and then drops before maturing.
⚠ MinorLemon Tree — Citrus Leaf Miner on Lemon Tree
Silvery, winding trails appear tunnelled through the leaf surface, with affected leaves sometimes curling or becoming distorted.
⚠ ModerateLemon Tree — Scale Insects on Lemon Tree
Small, immobile brown or tan bumps attach to leaves and stems, secreting honeydew and often leading to sooty mould developing on the residue.
⚠ ModerateLemon Tree — Spider Mites on Lemon Tree
Fine yellow stippling spreads across leaves, with fine webbing visible on the underside in heavier infestations, especially in hot, dry conditions.
⚠ CriticalLemon Tree — Root Rot in Lemon Tree
The tree wilts or yellows despite adequate watering, and roots appear brown, mushy, or hollow when checked, often in poorly-draining containers.
⚠ CriticalLemon Tree — Cold Damage and Frost Injury on Lemon Tree
Leaves develop water-soaked, curled, or blackened patches after cold exposure, and severe frost can kill branches or the whole tree.
⚠ MinorLemon Tree — Sooty Mould on Lemon Tree
A black, sooty coating develops on leaf surfaces, usually following an existing infestation of a honeydew-producing pest like scale, aphids, or whiteflies.
⚠ MinorLemon Tree — Splitting Fruit on Lemon Tree
Fruit develops a crack or split in the rind, typically as it nears maturity, sometimes exposing the inner flesh.
⚠ MinorLemon Tree Growing Unusually Thorny
The tree, especially young growth, develops noticeably long, sharp thorns, more prominent than the grower expected.
⚠ CriticalLemon Tree — Citrus Canker on Lemon Tree
Raised, corky, brown lesions with a yellow halo develop on leaves, stems, and fruit, sometimes causing leaf drop and fruit blemishing.
⚠ MinorLemon Tree — Overall Pale, Nitrogen-Deficient Leaves on Lemon Tree
Older leaves turn uniformly pale yellow-green, with the whole tree looking less vigorous than expected, distinct from the interveinal pattern of iron deficiency.
⚠ ModerateLemon Tree — Mealybugs on Lemon Tree
White, cottony masses cluster in leaf axils and along stems, secreting honeydew and weakening the tree over time.
⚠ ModerateLemon Tree Declining in a Too-Small Container
Growth slows, leaves may yellow, and the tree generally looks stressed after being in the same pot for an extended period, with roots visibly circling or emerging from drainage holes.
⚠ ModerateLemon Tree — Whiteflies on Lemon Tree
Small white, moth-like insects fly up in a cloud when the plant is disturbed, with sticky honeydew residue and often sooty mould developing on leaves.
⚠ MinorLemon Tree — Oedema (Water Blisters) on Lemon Tree Leaves
Small, corky, blister-like bumps develop on the undersides of leaves, sometimes turning brown or rust-coloured over time.
⚠ MinorLemon Tree — Slow Growth in Container-Grown Lemon Tree
The tree produces minimal new growth over an extended period, especially compared to what's expected during the active growing season.
⚠ MinorLemon Tree Flowers Dropping in Low Humidity
Flowers open but wither and drop quickly without setting fruit, particularly in dry indoor conditions during winter flowering.
⚠ MinorLemon Tree — Aphids on Lemon Tree New Growth
Small soft-bodied insects cluster on tender new shoots and flower buds, causing distorted growth and sticky honeydew residue.
Lemon Tree Care Guide
Light, watering, humidity, fertilising, repotting and propagation — everything you need to keep your Lemon Tree thriving.
Full care guide →See how growers fixed these problems
Browse real Lemon Tree grow diaries from the community — treatments, timelines, and results.
Browse community diaries →Common Lemon Tree Questions
Why is my lemon tree dropping its leaves?
The tree sheds a noticeable number of leaves, sometimes suddenly, even though remaining leaves may look otherwise healthy.… Read the full guide →
Why are my lemon tree leaves turning yellow?
Leaves yellow in various patterns — overall pale colour, yellowing between green veins, or yellow blotching — depending on the specific nutrient involved.… Read the full guide →
Why isn't my lemon tree producing fruit?
The tree grows and flowers but sets little to no fruit, or fruit forms and then drops before maturing.… Read the full guide →
Can a lemon tree survive winter outdoors?
Silvery, winding trails appear tunnelled through the leaf surface, with affected leaves sometimes curling or becoming distorted.… Read the full guide →
