Sensitive Plant problems & how to fix them
Mimosa pudica
Drooping, yellowing, brown tips, or a plant that just won’t thrive? Here are the most common Sensitive Plant problems, what usually causes them, and how to turn things around.
Common problems
Underwatering
It dries fast in a small pot and sheds leaflets after every drought. The plant is not getting enough water, either from infrequent watering or soil so dry it repels water. Prognosis is excellent - most underwatered plants perk up within days of proper rehydration.
Cold damage
Below about 16 C it sulks, yellows, and stops responding to touch. Tissue injury from a cold draft, a chilly windowsill, or a night outdoors below the plant's tolerance. Damaged leaves will not heal, but if the stems and roots survived, new growth typically appears within three to four weeks in a warm, stable spot.
fig leaves killed by a frost
Photo: Famartin · CC BY-SA 4.0 · Wikimedia Commons
Etiolation (insufficient light)
Weak light makes sprawling, sparse stems within weeks. 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.
etiolated seedlings stretching pale toward the light
Photo: சஞ்சீவி சிவகுமார் · CC BY-SA 4.0 · Wikimedia Commons
Spider mites
Fine foliage plus dry air is an open invitation to mites. Tiny sap-sucking mites that thrive in warm, dry air and leave fine webbing and speckled leaves. Caught early they are very treatable; most plants recover fully within 3-4 weeks of consistent treatment.
a two-spotted spider mite among its silk threads
Photo: Gilles San Martin · CC BY-SA 2.0 · Wikimedia Commons
The mistakes that most often kill it
- Letting the pot dry out repeatedly until the plant is bare stems.
- A cold windowsill in winter — chill is usually the end of it.
- Expecting a perennial: indoors it naturally declines after a year or two; save seed instead.
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