Busy Lizzie leaves turning yellow: causes and what to do
17 results in the diagnosis tree begin with yellowing leaves, 7 of them marked likely when the answers fit. They are ordered here for Busy Lizzie (Impatiens walleriana), using what its sources say about soil moisture, light, soil and watering and one problem recorded for it.
Sources last read 14 September 2026.
Impatiens walleriana, also known as busy Lizzie, balsam, sultana, or simply impatiens, is a species of the genus Impatiens, native to eastern Africa from Kenya to Mozambique. The Latin specific epithet walleriana honours a British missionary, Horace Waller (1833–1896). Wikipedia, CC BY-SA 4.0
Native range: SE. Kenya to S. Trop. Africa (wet tropical). Also sold as Bizzy Lizzy, Busy Lizzy, buzzy lizzy, Common Impatiens, Garden Impatiens and Impatiens.
What Busy Lizzie’s sources say that bears on this
- Soil moisture
- Moist but well-drainedRHS · read 13 September 2026
- Light
- Full shade, Full sun, Partial shadeRHS · read 13 September 2026
- Soil
- Chalk, Clay, Loam, Sand; pH Acid or Alkaline or NeutralRHS · read 13 September 2026
- Watering
- Given enough water they can grow in part sun, though strong sun may scorch leaves. They cope with humidity but are sensitive to heat, looking wilted in hot, dry spells, when they need extra water.NC State Extension · read 13 September 2026
How this shows up on a Busy Lizzie
Yellowing that begins at the lowest leaves on each stem
A sour smell from the compost is common on a busy Lizzie, and the lowest leaves on each stem come away when pulled. The surface may look dry while everything beneath it is not.
Its source describes soil that is moist but well-drained. Roots held below that are short of air, and roots short of air stop moving water, so the plant wilts in a wet pot.
Telling it apart: Whether new growth is affected too. Root damage shows up everywhere at once; ordinary leaf loss shows only in the oldest leaves.
RHS · read 13 September 2026Possible causes, likeliest first for a Busy Lizzie
Most likely too little water
Ranked higher because Busy Lizzie's recorded problems point this way.
- Moist but well-drained RHS · read 13 September 2026
Why: Soil dry two inches down, under lower leaves that are yellowing or leaves that are falling, is a busy lizzie shedding what it cannot support.
What to try:
- Water until it runs from the drainage hole, then let the pot drain.Useful: pot with drainage holes
- If the water runs straight through a shrunken rootball, stand the pot in water for twenty minutes so the compost can take it up.
What would settle it: Water it thoroughly and look again the same evening. A thirsty plant firms up fast. One that does not has a root problem rather than a water problem.
Most likely too much water
Ranked higher because Busy Lizzie's recorded problems point this way.
- Moist but well-drained RHS · read 13 September 2026
- Chalk, Clay, Loam, Sand; pH Acid or Alkaline or Neutral RHS · read 13 September 2026
Why: Soil that is wet two inches down, under leaves that are yellowing from the bottom or falling, points at roots that cannot breathe.
What to try:
- Hold off watering until the top two inches of soil are dry, and check again with a finger rather than by the calendar.Useful: moisture meter
- Empty any water standing in the saucer or the outer pot within half an hour of watering.Useful: pot with drainage holes
What would settle it: Lift the busy lizzie out of its pot. Healthy roots are firm and pale; roots that have been wet too long are brown, soft and smell sour.
Most likely too little water
Ranked higher because Busy Lizzie's recorded problems point this way.
- Moist but well-drained RHS · read 13 September 2026
Why: Soil dry two inches down leaves the roots nothing to send up, and the leaf edges are the last tissue in line.
What to try:
- Water thoroughly, until it runs from the drainage hole.Useful: pot with drainage holes
- Check the soil with a finger every few days rather than watering on a fixed day.Useful: moisture meter
What would settle it: Water it thoroughly and watch the next new leaves. If they come in with clean edges under steadier watering, the edges were thirst.
Less likely for a Busy Lizzie, still possible
- Most likely cold
- Most likely short of nutrients
- Most likely a build-up of salts in the soil
- Nutrients are an unlikely explanation here
- Possibly root rot, in a pot that has stopped draining
- Probably too much water, but this is not settled
- Probably too much water
- Most likely not enough light
- This may be ordinary leaf loss
- Possibly dry air
- The answers do not point at one cause
- Possibly too much direct sun
- Light and feeding are both plausible, and this does not separate them
- Possibly too much direct sun, or feeding
Questions
- What usually causes yellowing leaves on a Busy Lizzie?
- For Busy Lizzie: most likely too little water, most likely too much water and most likely too little water.
- How can I tell which one it is on my Busy Lizzie?
- Where is the yellowing? The lowest leaves, working upward; New growth at the top, while older leaves stay green; Between the veins, the veins themselves still green; At the leaf tips and edges, browning as it goes; Patchy, only on the side facing the window.
- What do Busy Lizzie's sources say about its soil moisture?
- RHS: Moist but well-drained.
- What does this look like on a Busy Lizzie?
- A sour smell from the compost is common on a busy Lizzie, and the lowest leaves on each stem come away when pulled. The surface may look dry while everything beneath it is not. Telling it apart: Whether new growth is affected too. Root damage shows up everywhere at once; ordinary leaf loss shows only in the oldest leaves.
Other plants that show yellowing leaves
African violetLower leaves collapse and yellow within days of a watering
Barberton daisyWrinkling rather than yellowing
Bearded irisFaded, yellow-white areas on the sunny side of the plant
Bigleaf hydrangeaPale dry areas across the upper leaves only
Bird of paradiseFaded, yellow-white areas on the sunny side of the plant
Bush lilyPale dry areas across the upper leaves only
Something else wrong with the Busy Lizzie?
What this does not cover
This page orders a decision tree's results using a plant's sourced care. It has not seen your plant, its pot or its window, and two problems at once are common: that is the usual reason a confident answer turns out wrong. The questions in the diagnosis tool narrow it further than a list can.