Spinacia oleracea
Growing calendar
Typical timing for central Japan (Kanto region). Shift it for your own climate, and record your actual dates.
Guides
- Why Spinach Will Not Grow: Soil pH and How to Correct It
- How to Sow Spinach: Soaking, Chitting and Sowing in Warm Weather
- Thinning and Feeding Spinach: Spacing and Reading the Leaf Color
- Spinach Growing Calendar: Four Sowings Through the Year
- Spinach Downy Mildew and Pests: Reading Resistance Codes
- When to Cut Spinach and How to Sweeten It in the Cold
Common problems
Start from what you can see on the plant.
Pests and diseases (36)
Problems recorded for this plant, most serious first.
Bolting
MajorDisorder
A flower stalk rises from the center of the plant and the leaves turn tough and stringy, spoiling eating quality. Heading vegetables run to seed without ever forming a head.
Downy Mildew
MajorDisease
Pale yellow to yellow-brown angular lesions form on the upper leaf surface with a gray-purple mold in the matching spot underneath. Lesions merge, the leaves die back and the plant declines early.
Fusarium Wilt
CommonDisease
Lower leaves wilt during the day and recover morning and evening, and this cycle repeats as the plant dies back. Cutting the stem reveals characteristic browning of the vascular tissue.
Damping-off
CommonDisease
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.
Root Rot
CommonDisease
Fine roots rot brown to blackish brown, growth stops and the lower leaves yellow. The plant wilts easily in the daytime and eventually dies outright.
Fertilizer Burn
CommonDisorder
Leaf margins scorch brown soon after fertilizing and the whole plant wilts. Root tips turn brown and growth stops abruptly.
Cabbage Armyworm
CommonPest
Young larvae feed in groups on the leaf underside, eating only the tissue so the leaf turns translucent white. Larger larvae chew big holes and can strip a plant bare in a single night.