Check these first
- Does it recover in the morning and evening? If so, the roots are struggling to take up water.
- Is the soil bone dry, or has it stayed soggy for days?
- Check the base of the stem and the roots for galls, brown streaks, or a rotten smell.
Most likely causes
From the pests and diseases recorded for this plant, the ones whose symptoms match, most serious first. Symptoms alone rarely confirm a cause, so use the linked page to check the signs and treatment.
Damping-off
The stem pinches in at soil level, turning water-soaked to brown and thin, and the seedling topples over. Infection before emergence makes the stand uneven with missing plants.
How to identify and treat: Damping-offFusarium Wilt of Cucurbits
Part of the vine wilts during the day and eventually the whole plant dies. The stem splits lengthwise near the soil and exudes gum, and the vascular tissue is browned when cut.
How to identify and treat: Fusarium Wilt of CucurbitsRoot-knot Nematode
The plant wilts in the daytime and does not recover with feeding or watering. Pull it up and the roots carry beaded chains of galls of varying size with few fine roots.
How to identify and treat: Root-knot NematodeOther possible causes
- Etiolation — Internodes stretch long, stems are thin and leaf color is pale. The plant topples easily a…
- Bacterial Wilt — Leaves wilt while still green during the day and recover in the morning and evening; after…
- Sclerotinia Rot — The crown, stem or head rots in a water-soaked way and is covered in white cottony myceliu…
- Fusarium Wilt — Lower leaves wilt during the day and recover morning and evening, and this cycle repeats a…
- Verticillium Wilt — Only one side of the lower leaves yellows and wilts, and the symptom moves up the plant. S…
- Southern Blight — The stem rots at soil level and white silky mycelium spreads over the crown and the surrou…
- Root Rot — Fine roots rot brown to blackish brown, growth stops and the lower leaves yellow. The plan…
Other symptoms on this plant
What other growers did about it
A page like this one can tell you what cucumber plant wilting is and what to try. What it cannot tell you is what actually happened to someone who had it on the same plant, at the same point in the season, and what they did next.
Gadenin is a free garden journal built around that. You photograph the plant, tag what you are seeing, and the entries line up by date for each plant you grow.
- Tag the problem and the app tells you how many other growers have logged the same thing on the same plant.
- Growers who make their records public can be followed, so you can read what they did and how it turned out.
- Next season your own entries come back at the same point in the year, so you check the plant before it starts.
Free on iPhone. Recording, tagging and reading public records cost nothing.