Vegetables
Spinach
A cool-season leafy crop for moderate light and containers that stay evenly moist.
Spinacia oleracea
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Photo: Zahrtalyasmin / CC BY-SA 4.0
At a glance
- Difficulty
- beginner
- Maintenance
- moderate
- Time to harvest
- 35–55 days · from-seed
- Water need
- moderate
- Growth habit
- leafy rosette
- Indoor suitability
- possible
- Support
- Usually not required
What this plant must have
These are minimum limits, not aspirational targets. Missing one can prevent healthy growth.
- Minimum direct light
- 3 hours
- Minimum container depth
- 15 cm (≈ 5.9 in)
- Minimum container volume
- 4 L (≈ 1.1 US gal)
- Active growth range
- 2–22 °C (≈ 35.6–71.6 °F)
- Frost behaviour
- hardy
Conditions it prefers
These conditions improve performance, but there may be room to adapt within the hard limits above.
- Ideal direct light
- 4–6 hours
- Ideal temperature
- 5–19 °C (≈ 41–66.2 °F)
- Preferred depth
- 20–30 cm (≈ 7.9–11.8 in)
- Preferred volume
- 6–12 L (≈ 1.6–3.2 US gal)
- Drainage
- well drained
Overview
A cool-season leafy crop for moderate light and containers that stay evenly moist.
What makes it practical
Sow in cool conditions and space seedlings so each plant can form a usable rosette.
What limits success
At least 3 hours of direct light; provide at least 15 cm of container depth and avoid treating the minimum as the preferred setup.
Getting started
Sow in cool conditions and space seedlings so each plant can form a usable rosette.
Before planting
Prepare a container with open drainage and enough volume for the plant's mature root system. The documented minimum is 4 litres.
Planting
Sow in cool conditions and space seedlings so each plant can form a usable rosette.
Position
Aim for 4–6 hours of direct light while watching for heat reflected from walls or glass.
Ongoing care
Avoid repeated drying and move containers out of intense afternoon heat as the weather warms.
Watering check
This crop's water need is moderate. Check the mix itself instead of watering by a fixed weekday schedule.
Harvesting
Harvest outer leaves while tender or cut young plants for baby spinach.
Timing
The documented range is roughly 35–55 days from seed; temperature and cultivar can shift it.
Beginner mistakes
Warm soil can delay germination and cause plants to bolt before producing a worthwhile harvest.
A useful reset
Change one condition at a time, then judge the newest growth rather than expecting damaged leaves to recover.
Troubleshooting context
Start with the visible symptom and rule out moisture, light, temperature, and root-room conflicts before assuming disease.
Relevant symptom
The launch troubleshooting library links this plant to slow growth as a useful first diagnostic path.
Frequently asked questions
- How much light and root room does spinach need?
Spinach needs at least 3 hours of direct light. It needs a container at least 15 cm deep holding about 4 litres. A 20–30 cm container with 6–12 litres is easier to keep evenly watered. Expect roughly 35–55 days from seed, which shifts with temperature and cultivar.
Editorial review:
Reviewed by NookHarvest Editorial Team
How we review adviceCorrections and questionsProblems and next steps
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Set up the container
Container Gardening
Choose pots, mix, drainage, and plant combinations that make small-space care more forgiving.
Troubleshoot a likely symptom
My Plant Is Barely Growing
Check useful light, temperature, root room, and recent growth before adding fertilizer to a plant that has stalled.