Why Fig Leaves Turn Yellow and How to Fix Them

Yellow leaves are one of the most common worries for fig growers, and the cause is often something simple: too much or too little water, a soil problem, or just the season. Figs are deciduous, so some yellowing every autumn is the tree doing exactly what it should.1Grow Organic. Fig Leaves Turning Yellow, Drooping, Curling & Brown Spots The pattern of the yellowing, meaning which leaves and what shape it takes, usually tells you more than the yellow itself.

Read Where the Yellow Shows Up First

The age of the yellow leaves splits the main causes apart. When a fig runs short of nitrogen, it pulls nitrogen out of its oldest leaves to feed new growth, so the lower, older leaves yellow first.2Revista mexicana de ciencias agrícolas. Nutrient deficiencies induced in fig tree cv. Neza in hydroponic conditions Iron trouble is the opposite: the newest leaves at the tips turn pale while their veins stay green. If new growth is yellow on a tree you’ve been feeding well, iron is the likelier culprit, not a need for more fertilizer.3GrowScripts. Why Are My Fig Tree Leaves Turning Yellow? Causes & Fixes

Other patterns point elsewhere:

A quick five-minute check narrows things down. Note whether the yellow leaves are at the bottom, at the tips, or everywhere. Flip a few leaves and look at the undersides for bumps or specks. Push a finger two inches into the soil to feel the moisture. Then think back over the last few weeks for hot spells, feeding, repotting, or spraying nearby.

A few yellow lower leaves on their own aren’t cause for alarm. Figs routinely shed some of their oldest, most shaded leaves, and a single bad leaf rarely tells you much without a pattern. Worry when yellowing spreads quickly or reaches new growth.

Timing is a clue too. Yellowing that starts right after a change, such as repotting, a heat wave, a week of rain, or a first feeding, often points to that change. Yellowing that creeps up over a whole season fits a gradual problem like used-up nutrients or slowly rising soil pH better than a sudden watering mistake. Sudden yellowing on many leaves at once, especially after a cold night or a spray, suggests a one-time event rather than a slow deficiency.

Watering Problems, Especially in Pots

Figs in containers have little soil and root space and hold limited water, which makes them very sensitive to changes in moisture.8Fig Boss. Yellowing Fig Tree Leaves: Causes and Solutions A pot can dry out in one hot day or stay soggy for a week after heavy rain. Waterlogged roots can’t take in air, so the leaves yellow and drop even though the soil is wet. Once established in the ground, figs handle dry spells better than many fruit trees.9IRIS Università degli Studi di Palermo. Approaches to study biodiversity and salinity tolerance mechanisms in Mediterranean fruit tree species

Dark pots in full sun heat up and dry out faster, while a big pot of dense mix stays wet far longer after rain. A tree that has outgrown its pot, with roots circling or poking from the drainage holes, dries out quickly and can look drought-stressed even when you water often.

Overwatered leaves turn yellow and soft while the soil stays wet. Underwatered leaves droop and crisp at the edges, and the soil may pull away from the pot. The finger test settles which it is in seconds.

To rescue an overwatered pot, loosen the top few inches of mix with your fingertips to help it dry and let air in.10OurFigs. Accidentally overwatered my potted fig tree. What do I do? Push a cloth or paper-towel wick into the drainage holes to draw out the soggy bottom layer.11OurFigs. Accidentally overwatered my potted fig tree. What do I do? If the mix stays saturated, it may hold too much water and need replacing with a better-draining mix.12OurFigs. Accidentally overwatered my potted fig tree. What do I do?

For a pot that’s too dry, look at the edge. If the soil has shrunk away from the rim, water can run down the gap and out the bottom without wetting the root ball. Soak the whole pot in a bucket or tub until bubbles stop rising, then let it drain fully. Leaves that are already yellow or crisp won’t turn green again, so judge recovery by whether new leaves come in healthy.

To prevent both problems, water deeply until it drains, then wait until the top inch or two is dry. In summer heat a potted fig may need water daily. Empty saucers so roots never sit in water, and mulch in-ground trees to even out moisture.

Iron and Soil pH Problems

Yellowing between green veins usually isn’t caused by a lack of iron in the soil.13ChicagoFigs. Fig Tree Nutrient Deficiency: Yellow Leaves Explained When soil is too alkaline, iron gets locked up where roots can’t take it.14ChicagoFigs. Fig Tree Nutrient Deficiency: Yellow Leaves Explained The wrong pH also makes other minerals dissolve less, so several deficiencies can appear at once.15permies.com. Why Fig Leaves Turn Yellow and How to Fix Them Alkaline tap water slowly raises the pH of potting soil over months.16ChicagoFigs. Fig Tree Nutrient Deficiency: Yellow Leaves Explained That’s why potted figs watered with hard water are especially prone, and trace elements in pots also run low over a season.17GrowScripts. Why Are My Fig Tree Leaves Turning Yellow? Causes & Fixes

Before treating, confirm the picture. The newest leaves are pale or yellow with veins that stay clearly green, while older leaves look fairly normal. A pH test kit on the potting mix or soil adds evidence, since a high reading makes iron lockup much more likely. If the whole leaf, veins included, is pale and the older leaves are suffering, the problem is more likely nitrogen.

The fix is a micronutrient or iron product, not more nitrogen.18GrowScripts. Why Are My Fig Tree Leaves Turning Yellow? Causes & Fixes Sprays of chelated iron, which is iron in a form leaves and roots can absorb, raised leaf nutrient levels in fig trees.19IOP Conference Series: Earth and Environmental Science. Impact of Pruning, Foliar Spraying with Gibberellic Acid, and Chelated Iron in Leaves Nutrients Content of Fig Trees Cv. Black Diyala New growth should come in green, though leaves that are already yellow may not fully recover. Extra general fertilizer backfires: more nitrogen pushes more new growth, and that growth yellows too, because nitrogen doesn’t unlock iron.

For longer-term control in pots, use rainwater where tap water is hard and repot every couple of years into fresh mix. In alkaline ground, work in compost or sulfur to lower the pH slowly.

Nitrogen and Other Nutrient Shortages

A hungry fig turns pale from the bottom up.20Revista mexicana de ciencias agrícolas. Nutrient deficiencies induced in fig tree cv. Neza in hydroponic conditions The yellowing is usually an even pale green to yellow across the whole leaf, unlike the green veins of iron trouble. Growth is slow too, with short new shoots and small leaves, so the tree looks tired as well as pale. Potted figs use up the nutrients in their soil within a season.

The remedy is a balanced fertilizer during active growth in spring and early summer. Follow the label rate, since more is not better. In-ground figs often need little, while potted figs do well on light, regular feeding. Water before fertilizing to avoid burning roots. A tree that was fed recently and still yellows from the bottom may have a watering or root problem that stops it taking up nutrients.

Stop feeding by late summer so the tree can harden off before winter. Feeding in fall won’t stop natural leaf drop.

Fig Rust and Other Diseases

Rust begins as tiny yellow spots that enlarge into reddish-brown angular spots on both leaf surfaces.21University of Horticultural Sciences, Bagalkot. EPIDEMIOLOGY AND MANAGEMENT OF FIG RUST CAUSED BY Cerotelium fici (Cast.) Arth. Underneath, orange to reddish-brown raised pustules appear, while the top stays smooth.22Agriculture & Forestry. SEVERE INFECTION OF FIGS BY FIG RUST PATHOGEN CEROTELIUM FICI IN MONTENEGRO The spots merge into dead patches near the edges, and the leaves curl up.23Agriculture & Forestry. SEVERE INFECTION OF FIGS BY FIG RUST PATHOGEN CEROTELIUM FICI IN MONTENEGRO Badly infected trees drop nearly all their leaves, leaving bare branches and fruit that can’t ripen.24Agriculture & Forestry. SEVERE INFECTION OF FIGS BY FIG RUST PATHOGEN CEROTELIUM FICI IN MONTENEGRO

Flipping the leaf is the key step for telling rust from other spots. Rust also tends to show up later in the season, often in late summer, and spreads from leaf to leaf on the same tree, though timing alone doesn’t confirm it. Yellowing without spots and without pustules underneath is more likely a water, nutrient, or seasonal problem.

Rust thrives in warm, humid late-summer weather, and leaves that stay wet overnight help it spread. Space and prune trees for airflow, and water at the soil rather than over the leaves.

A copper fungicide used at the first signs of rust can control outbreaks and prevent leaf drop.25OurFigs. Rust Prevention With Copper Fungicide Collect and destroy fallen leaves in fall to reduce rust the next season, and never compost the infected leaves.26OurFigs. Rust Prevention With Copper Fungicide Copper protects new leaves rather than curing old ones, so repeat applications as the label directs during wet spells.

Spider Mites, Nematodes, and Weedkiller Damage

Mite feeding leaves a pattern of tiny puncture dots that make leaves look sanded or frost-speckled.27Plant Doctor. Diagnose & Treat Spider Mites on Fiddle Leaf Fig To check, hold white paper under a branch and tap it. Moving specks are mites, and fine webbing appears in heavy infestations. Hot, dry weather makes outbreaks worse.

Hose off leaf undersides regularly and use insecticidal soap if mites persist. Soap works only on the mites it touches, so cover the undersides thoroughly and repeat as the label directs. Mites favor stressed, dusty, dry trees, so steady watering and rinsing dust off leaves help prevent outbreaks.

Trees with root-knot nematodes grow poorly and look stunted.28UC IPM. Fig Nematodes Their roots carry distinctive knobby swellings.29UC IPM. Fig Nematodes Dig gently at the root edge to check before blaming water or feeding. Nematodes are most common in sandy soils, and growing in pots with fresh mix avoids them.

Glyphosate weedkiller drift turns leaves yellow or pale, especially at the base of young leaves, and new leaves come in thin and strap-like.30WascoNursery.com. Herbicide Drift: Symptoms, Causes and What to Do Branch tips can die back, and new shoots below come in stunted and bunched.31WascoNursery.com. Herbicide Drift: Symptoms, Causes and What to Do Prune out dead tips, and keep sprays away from the tree on still days.

Normal Fall Yellowing

As days shorten and temperatures cool, fig trees withdraw nutrients from older leaves before they fall.32Giles County Figs. Why Are My Fig Tree Leaves Turning Yellow? Diagnosis & Treatment A frost can trigger leaves to yellow and drop quickly.33Fig Boss. Yellowing Fig Tree Leaves: Causes and Solutions Yellowing across the whole tree in fall is normal preparation for winter rest, and it needs no fix.34Giles County Figs. Why Are My Fig Tree Leaves Turning Yellow? Diagnosis & Treatment

Healthy fall drop looks even. The whole tree yellows fairly uniformly, and leaves fall without spots, webbing, or pustules. The oldest leaves usually go first and the tree otherwise looks firm. Figs on the branch often ripen as leaves yellow, so a few yellow leaves at harvest are expected. Widespread yellowing in midsummer isn’t seasonal, so check water, pests, and rust first.

As leaves fall, rake and remove them, especially if rust appeared. Stop fertilizing, move potted figs to a sheltered, unheated spot, and water dormant pots only lightly.

Salty Water and Sun Stress

Figs tolerate moderate salt better than many fruit trees.35IRIS Università degli Studi di Palermo. Approaches to study biodiversity and salinity tolerance mechanisms in Mediterranean fruit tree species Still, salt building up in the soil can cause yellowing, dead leaf edges, and slow growth.36IRIS Università degli Studi di Palermo. Approaches to study biodiversity and salinity tolerance mechanisms in Mediterranean fruit tree species Look for a white crust on the pot or soil surface and brown, crispy edges on yellow leaves. It’s common with softened water or heavy fertilizer.

Flush pots with plenty of water a few times a season to wash salts out. Do it while the tree is actively growing, let the pot drain fully, and empty the saucer. If salt keeps returning quickly, change the water source or cut back the fertilizer rather than flushing more often. Indoor ornamental figs moved suddenly into full sun may yellow too, so introduce them to brighter light gradually.37Springer / Journal of Plant Research. Leaf-goldenning induced by high light in Ficus microcarpa L. f., a tropical fig