Florist's cyclamen brown leaf tips and edges: causes and what to do
6 results in the diagnosis tree begin with brown tips and edges, 3 of them marked likely when the answers fit. They are ordered here for Florist's cyclamen (Cyclamen persicum), using what its sources say about humidity, soil moisture, cold tolerance, watering and feeding and one problem recorded for it.
Sources last read 14 September 2026.
Cyclamen persicum, the Persian cyclamen, is a species of flowering herbaceous perennial plant growing from a tuber, native to rocky hillsides, shrubland, and woodland up to 1,200 m (3,900 ft) above sea level, from south-central Turkey to the Levant. Cultivars of this species are the commonly seen florist's cyclamen. Wikipedia, CC BY-SA 4.0
Native range: Algeria to E. Medit. (subtropical). Also sold as Persian Cyclamen.
What Florist's cyclamen’s sources say that bears on this
- Humidity
- ASHRAE recommends indoor relative humidity between 30% and 60%Penn State Extension · read 13 September 2026
- Soil moisture
- Well-drainedRHS · read 13 September 2026
- Cold tolerance
- H1C — 5–10°CRHS · read 13 September 2026
- Watering
- Water only once the soil feels dry, and keep water off the crown, as that can make the tubers rot. Pour water around the rim or at the pot's base.NC State Extension · read 13 September 2026During growth, water moderately and feed every two weeks with a low nitrogen liquid fertiliser. After flowering, water less, and keep dry while dormant.RHS · read 13 September 2026
- Feeding
- While growing, water moderately and give a low-nitrogen liquid fertiliser every two weeks.RHS · read 13 September 2026
How this shows up on a Florist's cyclamen
Crisp margins that appear in winter
The florist's cyclamen shows browning on many leaves at once, all at the margin, with no spots or soft patches anywhere.
The edges fail first because they are the end of the plumbing. Penn State Extension cites 30% to 60% as the recommended indoor range, and winter heating regularly takes a room under it.
Telling it apart: Look at the pot rim and the soil surface. A white crust points at a build-up from tap water or feed rather than at the air. Penn State also reports misting and pebble trays do little to the humidity around a plant.
Penn State Extension · read 13 September 2026Possible causes, likeliest first for a Florist's cyclamen
Most likely cold
Ranked higher because Florist's cyclamen's recorded problems point this way.
- Crisp margins that appear in winter Penn State Extension
Why: Soft, dark patches rather than crisp ones are damaged tissue rather than dried tissue.
What to try:
- Move it away from the glass at night, or keep the curtain on the room side of the florist's cyclamen.
- Leave damaged leaves until new growth appears, then remove the worst of them.
What would settle it: Where the florist's cyclamen sits at night, and what the glass feels like at that hour. Damage that appeared after one cold night, on the side facing the window, is the pattern.
Most likely a build-up of salts in the soil
- Loam; pH Acid or Alkaline or Neutral RHS · read 13 September 2026
Why: Salts from the potting mix, fertilizer and hard water rise to the surface as it dries and are left behind as a white or tan crust, according to Colorado State University Extension.
What to try:
- Water slowly from the top until several times the pot's volume has run through the drainage hole, to wash the salts out.Useful: moisture meter
- Scrape off the top layer of crusted potting mix and replace it.
What would settle it: Where else it sits. A salt crust also forms on the pot rim, on the outside of clay pots and around the drainage holes; a fungal growth stays on the moist surface of the mix.
Most likely too little water
Ranked lower for Florist's cyclamen because of what its sources say.
Its source describes well-drained soil for this plant, so soil that dries between waterings is expected. The concern is soil left dry long enough for the plant to go limp or wrinkle.
- 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: moisture meter
- 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 Florist's cyclamen, still possible
Questions
- What usually causes brown tips and edges on a Florist's cyclamen?
- For Florist's cyclamen: cold, a build-up of salts in the soil and too little water.
- How can I tell which one it is on my Florist's cyclamen?
- Is the browning crisp and dry, or soft and dark? Crisp and dry; Soft and dark.
- What do Florist's cyclamen's sources say about its soil moisture?
- RHS: Well-drained.
- What does this look like on a Florist's cyclamen?
- The florist's cyclamen shows browning on many leaves at once, all at the margin, with no spots or soft patches anywhere. Telling it apart: Look at the pot rim and the soil surface. A white crust points at a build-up from tap water or feed rather than at the air. Penn State also reports misting and pebble trays do little to the humidity around a plant.
- Is Florist's cyclamen safe to handle while I check it?
- Its sources list it as toxic to cats and dogs. Wash your hands after handling the roots or sap, and keep trimmings away from pets.
Other plants that show brown tips and edges
- No photograph yetChinese peonyBrown, papery patches on the leaves nearest the glass
Calla lilyEdges of the leaves brown while the middle stays sound
- No photograph yetHardy fuchsiaBrown, papery patches on the leaves nearest the glass
- No photograph yetSunflowerBrown, papery patches on the leaves nearest the glass
- No photograph yetZebra plantBrown, papery patches on the leaves nearest the glass
Something else wrong with the Florist's cyclamen?
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.