Plant care guide
Alocasia Frydek Yellow Leaves: Normal Turnover or a Problem?
Updated
Why are my Alocasia frydek leaves turning yellow?
One old Frydek leaf yellowing while new leaves come through is normal turnover. Several leaves yellowing at once points to wet or dry roots, too little light, cold, winter rest, or spider mites.
What to do first
Note which leaves are yellow and how fast. Check the mix and roots before watering, move the plant to bright indirect light above 16 °C (60 °F), and look under the leaves for mites.
A yellow leaf on a Frydek is worrying when the plant only carries a handful of them. The pattern matters more than the yellow itself. NC State Extension notes that yellowing Alocasia leaves can come from overwatering, too little water, or inadequate light. NC State lists Alocasia micholitziana ‘Frydek’ among its Alocasia cultivars. Start by working out which leaves are yellow, and how many.
Is it normal leaf turnover?
The RHS guide to leaf damage on houseplants says it is normal for the odd lower leaf on a mature plant to yellow and fall.
Turnover usually looks like this:
- One leaf, usually the oldest and lowest, yellows slowly.
- New leaves keep opening green and firm.
- The stalks of the other leaves stay upright.
- The mix dries at its usual pace.
If that is your Frydek, let the leaf yellow fully and cut it off at the base. The RHS advises removing fading leaves this way and wearing gloves, because the sap can irritate skin.
When yellowing points to a problem
The RHS lists these causes of yellowing in large numbers: too much or too little water, overpotting, too shady a spot, too cold a temperature, a sudden temperature drop, and drafts.
| Pattern | Likely cause | Check |
|---|---|---|
| Yellowing on new and old leaves, wet mix, soft stalks | Overwatering or root rot | Mix moisture, smell, root color |
| Lower leaves yellow and crisp, very light pot | Underwatering | Mix shrunk from the pot edge |
| Yellowing with slow new leaves, plant far from a window | Too little light | Distance from the window |
| Yellowing after a cold spell or near a draft | Cold | Night temperature at the plant |
| Several leaves fade in autumn or winter | Winter rest | Room temperature, growth rate |
| Fine pale speckles that run together | Spider mites | Leaf undersides with a hand lens |
Overwatering and wet roots
Clemson HGIC’s houseplant disorders guide says yellowing is most often a symptom of overwatering. Virginia Cooperative Extension’s container watering guide lists yellowing on both new and old foliage, mushy stems, a rotten smell and fungus gnats as signs.
Missouri Botanical Garden’s Alocasia ‘Frydek’ entry calls for moist, organically rich soil. Moist is not waterlogged. The RHS warns that overwatering Alocasia, especially in winter, can rot the roots.
If the mix is wet and the leaves are yellowing, unpot the plant. Clemson advises checking the roots and cutting out infected ones when only a few are affected. Repot in fresh, well-drained mix.
Underwatering
Clemson notes that lower leaves may yellow and die if a plant stays too dry for an extended time. The Virginia guide adds dry, brittle leaves, brown tips, and mix that has shrunk away from the pot. Water slowly until the whole root ball is wet, then let it drain.
Light, cold and winter rest
- Light. MBG recommends part shade or filtered sun for Frydek. The RHS recommends bright but indirect light and warns that strong midday sun can scorch leaves yellow. The RHS notes that Alocasia survives lower light but grows much more slowly.
- Cold. The RHS advises at least 16 °C (60 °F) in the growing season and never below 10 °C (50 °F).
- Winter rest. The RHS says Alocasia goes dormant in cooler, drier winter conditions and may lose some foliage. MBG suggests overwintering Frydek in a humid spot at around 16–18 °C (60–65 °F) with reduced watering. A resting plant needs less water, not more fertilizer.
Pests and feeding
MBG advises watching Frydek for spider mites, mealybugs and scale. Iowa State University Extension’s spider mite article describes light damage as tiny yellowish-green speckles. Heavy feeding turns leaves greenish-yellow, then tan or brown. Clemson also names mites and insect pests as a cause of yellowing.
Clemson links yellowing of lower leaves to nitrogen shortage, especially in pot-bound plants. The RHS suggests a general liquid fertilizer from April to October, at the rate on the package. Do not feed a plant with wet, damaged roots or one that is resting.
What to do next
- Count the yellow leaves and note their age.
- Check the mix below the surface and lift the pot.
- Unpot if the mix is wet and stalks are soft.
- Move the plant to bright, indirect light, away from drafts.
- Inspect leaf undersides with a hand lens.
- Change one thing at a time and watch the next new leaf.
For more on the pattern across houseplants, see why houseplant leaves turn yellow. The Alocasia dormancy guide covers winter rest, and the Alocasia Frydek hub collects our other Frydek pages.
Related guides
Other alocasia frydek problems we cover: drooping.
References
- Missouri Botanical Garden Plant Finder: Alocasia ‘Frydek’
- NC State Extension Gardener Plant Toolbox: Alocasia
- RHS: Alocasia Growing Guide
- RHS: Leaf Damage on Houseplants
- Clemson Cooperative Extension HGIC: Houseplant Diseases & Disorders
- Virginia Cooperative Extension: Properly Watering Container Houseplants (SPES-804)
- Iowa State University Extension and Outreach: Spider Mites on Houseplants
How this guide was put together: Missouri Botanical Garden, NC State Extension, RHS, Clemson HGIC, Virginia Cooperative Extension, and Iowa State University Extension guidance.