Is container growing suitable for spinach?
Written by
Kiana Okafor
Reviewed by
Prof. Martin Thorne, Ph.D.Spinach does very well in containers. You need a 5-gallon bucket with some drainage holes. Use a good potting mix with perlite to ensure it is soft and airy for the roots. I grow spinach on my apartment balconies, so you'll be harvesting round after round of this leafy green, even in the least likely of spaces.
Soil Preparation
- Quality potting mix: Blend peat, compost, and perlite
- Maintain pH 6.5-7.5 with lime adjustments
- Avoid garden soil preventing compaction
Planting Technique
- Sow seeds ½ inch deep: Space 2 inches apart
- Cover lightly with vermiculite
- Thin seedlings to 4 inches after germination
Positioning Strategy
- East-facing locations: Morning sun exposure
- Rotate containers daily for even growth
- Use wheeled bases for heavy pots
Water container plants every morning in hot weather. Containers dry out more readily than a garden bed. Poke your finger into the soil to see if it is dry an inch or two down. I irrigate with a drip. Your plants stay happy and don't bolt.
Position pots in east-facing locations to receive optimal light for your spinach. It grows at its best with 4 to 6 hours of sunshine each morning. Move your pots undercover in the afternoon. I use plant caddies so that I can move my pots easily on hot days. You will prevent leaf scorch and overheating.
Every three weeks, fertilize with compost tea, as container plants use up nutrients fairly quickly. After each harvest, I'd recommend using fish emulsion. I would also recommend avoiding the use of chemical fertilizers, as they create salts that accumulate in the soil, potentially harming the environment. This will ensure that your spinach stays sweet and tender.
To utilize regrowth effectively, harvest using the cut-and-come-again technique. This means cutting only the outermost leaves of the plant approximately 1 inch above the crown, with a maximum of 1/3 of the plant removed each time you harvest. Harvesting every week will give you 4 to 5 cuttings; therefore, maximize your yield from this small amount of space.
Container spinach suits urban gardeners perfectly. Its shallow roots adapt well to pots. I grow it year-round, moving indoors in winter. You overcome space limitations.
Read the full article: How to Grow Spinach: Ultimate Gardening Guide