Plant care guide
Lucky Bamboo Root Rot: Check Roots and Save Firm Stalks
Updated
Why does my Lucky bamboo have root rot?
Lucky bamboo has root rot when its roots turn soft and mushy and their outer layer slips off, often with yellowing leaves or a stalk that softens from the base. In water it follows stale, rarely changed water; in soil it follows a mix that stays wet or a saucer left full.
What to do first
Take the stalks out and squeeze the roots and the cane base. Cut away soft roots, and cut any rotting cane back to firm green tissue. Re-root healthy sections in clean water or fresh, well-drained mix, then change water weekly or let the top 2.5 cm (1 in) of soil dry between waterings.
Lucky bamboo is sold as an almost unkillable plant, so rot comes as a shock. The good news is that a single firm green section of stalk can grow a new plant. The job is to find where the rot stops.
NC State’s Dracaena sanderiana profile says the plant grows in moist potting mix or in chlorine-free water. Rot looks slightly different in each.
Signs above the roots
University of Maryland Extension’s root rot page lists yellowing, browning and dieback of leaves, poor growth and wilting. It also describes the lower stem turning black, brown or mushy, which leads to lower leaf yellowing and drop.
On lucky bamboo, that means:
- Leaves yellowing from the bottom of a stalk upward.
- A stalk that is yellow or brown and soft at the base, instead of firm and green.
- In water: roots that look slimy or fall apart, and a sour smell when you change the water.
- In soil: mix that stays wet for days, or water sitting in the saucer.
Confirm it at the roots
Lift the stalks out of the vase, or ease the plant out of its pot.
| What you find | What it means |
|---|---|
| Roots firm and springy, stalk base hard | Roots are healthy; look elsewhere for the problem |
| Roots brown to black, soft or mushy | Rot (Maryland) |
| Outer root layer pulls off and leaves a thin thread | Rot (Maryland) |
| Stalk soft or wrinkled at the base, firm higher up | Rot has entered the cane; save the firm part |
| Whole stalk soft and yellow | That stalk cannot be saved |
Judge roots by texture, not colour alone. Squeeze gently between finger and thumb.
What causes it
- Stale water. NC State and Clemson’s lucky bamboo guide both say to change the water weekly. An MSU Extension answer on ailing lucky bamboo says every one to two weeks.
- Mix that drains slowly, or watering too often. Clemson’s dracaena factsheet says root rot usually results from a soil mix that does not drain quickly or overly frequent watering.
- A saucer of standing water. Clemson’s lucky bamboo guide says not to leave water in a saucer under the pot.
How to treat lucky bamboo root rot
- Separate the stalks. Maryland advises separating infected plants from healthy ones. Untie decorative wire on braided stalks if you need to check each base.
- Trim the roots. Cut off soft, dark roots with clean, sharp scissors. Keep firm roots.
- Cut rotting stalks back to firm tissue. If a stalk is soft at the base but firm above, cut it in the firm green part. Maryland says to take cuttings only from healthy tissue.
- Re-root the cuttings. Clemson’s method: remove the lowest leaves and stand the cutting in water. It says roots usually form within two to three weeks.
- Clean the vase and pebbles in hot, soapy water before reuse. Maryland advises clean or new containers.
- Discard stalks soft from top to bottom. Maryland advises throwing away severely infected plants.
Back in water or into soil?
In water: Clemson says to cover the roots and at least 2.5 cm (1 in) of stem. Change the water weekly. NC State calls for chlorine-free water. The MSU answer recommends rain or distilled water, because lucky bamboo is sensitive to fluoride and chlorine. Clemson suggests liquid houseplant fertilizer at a quarter of the label rate every other month.
In soil: the MSU answer says the plant does better in soil, as it grows naturally. Use a well-drained mix labeled for indoor or tropical plants. Clemson advises watering when the top 2.5 cm (1 in) of soil is dry, letting it drain and emptying the saucer. Stake tall stems until the roots anchor.
Keep the plant in bright, indirect light. Clemson warns that direct sun browns the leaves.
Prevent it next time
Put a weekly water change on your calendar. Lift the stalks once a month and squeeze a root or two. For the soil route and potting mixes, see houseplant root rot. For the species next to other dracaenas, see our dracaena varieties guide. Lucky bamboo is toxic to cats and dogs, according to NC State. The lucky bamboo hub lists the rest.
Related guides
Other lucky bamboo problems we cover: brown tips.
References
- NC State Extension Gardener Plant Toolbox: Dracaena sanderiana
- Clemson Cooperative Extension: How to Grow and Care for Lucky Bamboo
- Clemson Cooperative Extension, HGIC 1504: Dracaena
- University of Maryland Extension: Root Rots of Indoor Plants
- Michigan State University Extension via Ask Extension: Lucky bamboo illness
How this guide was put together: NC State Extension, Clemson Cooperative Extension, University of Maryland Extension and Michigan State University Extension guidance.