Paperwhite Bulbs: Black Streaks and Flopping—Light or Bacteria?

Two Likely Causes

Increase light: South window, or 12–14 hrs under grow lights.
Stake floppy leaves: Bamboo stakes + soft ties.
Reduce watering: Keep gravel moist, not soggy. No standing water.
If bacterial suspected: Spray copper fungicide (per label) weekly. Stop at flower emergence.

Paperwhites are typically discarded after forcing—they rarely rebloom well. Enjoy the flowers, then compost.

22" leaves = classic stretching for light. Brighter conditions prevent both flopping and secondary bacterial infection at bend points.

Plant Diseases: Troubleshooting Swamp Milkweed: Spider Mites, Aphids, and Webbing; Bougainvillea Cream Spots and Leaf Drop: Magnesium or Water; Oak Tree Webbed Clumps: Fall Webworms, Minor Pest; Troubleshooting Gloxinia Decline: Questions to Pinpoint the Cause; Soft, Floppy Phalaenopsis Leaves: Calcium/Magnesium Deficiency; Summer Defoliation: Humidity, Fungicide Gaps, and Foliar Feeding for Recovery; African Violet Lighting and Repotting Myths: Why Lamps Don't Replace Sunlight; Reviving Floppy Nepenthes Leaves After Bare-Root Shipping; Winter Pruning of Sarracenia & Venus Flytraps: How Much Is Too Much?; Identifying Bugs on Corn Plant Leaves

Garden Articles

Plants

Cause	Symptoms	Fix
Etiolation (low light)	Leaves 18–22" tall, weak, bend at points, black streaks at bends	Move to brighter location (cool, sunny window); stake if needed
Bacterial leaf streak	Water-soaked streaks turning black; foul odor possible	Copper fungicide spray weekly; avoid wetting foliage