Tiger Jaws problems & how to fix them

Faucaria tigrina

Drooping, yellowing, brown tips, or a plant that just won’t thrive? Here are the most common Tiger Jaws problems, what usually causes them, and how to turn things around.

Common problems

Root rot

Its thick taproot-like base rots readily in soil that stays damp between waterings. A fungal or bacterial infection of the roots, almost always triggered by soil staying wet too long. Caught early, most plants recover within a few weeks after repotting; if most roots are already mushy, recovery is uncertain.

Etiolation (insufficient light)

The stemless jaws rise on elongated bases and lose their clenched look in poor light. The plant is stretching toward light it isn't getting: long gaps between leaves, pale thin growth, and leaning. Stretched growth never compacts again, but with more light all new growth comes in full and sturdy - the plant's future is good.

Example of etiolated seedlings stretching pale toward the light, on another plant — Example on another plant
etiolated seedlings stretching pale toward the light
Photo: சஞ்சீவி சிவகுமார் · CC BY-SA 4.0 · Wikimedia Commons

Mealybugs

Pests hide in the crevices where the paired leaves meet. Slow-moving sap-sucking insects that look like bits of white cotton stuck in leaf joints. They are stubborn but very treatable with repeated spot treatment; expect steady improvement over 3-4 weeks.

Example of a long-tailed mealybug on a leaf, on another plant — Example on another plant
a long-tailed mealybug on a leaf
Photo: D-Kuru · CC BY-SA 3.0 at · Wikimedia Commons

Overwatering

Leaves crack and turn glassy when watered too often in cool weather. The soil is staying wet longer than the plant can handle, starving roots of oxygen. If caught before roots start rotting, the fix is simple - let the soil dry out and adjust the routine - and most plants bounce back within 2-3 weeks.

Example of a yellowing lower leaf on a potted Chinese evergreen, on another plant — Example on another plant
a yellowing lower leaf on a potted Chinese evergreen
Photo: Saurav9656 · CC BY-SA 4.0 · Wikimedia Commons

Succulent-specific pests

Root mealybugs hide below the soil line on succulents and cacti — check the root ball when a plant stalls for no visible reason. Mealybugs, scale, and root mealybugs love the crevices and thick leaves of succulents and cacti, sucking sap and weakening the plant. Caught early they are very treatable, but expect a few repeat treatments over 2-3 weeks to break the life cycle.

Example of cottony cochineal scale massed on a prickly pear pad, on another plant — Example on another plant
cottony cochineal scale massed on a prickly pear pad
Photo: Juandev · CC BY-SA 3.0 · Wikimedia Commons

The mistakes that most often kill it

Winter watering at tropical-houseplant frequency.
Dense, peaty soil around the fleshy base.
Dim placement that slowly starves and stretches it over a season.

Not sure what’s wrong?

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