Domakihub How to Grow Spinach: A Full Guide from Seed to Harvest
Grow fast, nutritious spinach in your garden, terrace, or pots with these practical steps.
Reviewed by Domakihub garden pros · 2026-06-23 · 5 min read
Spinach is one of the fastest-returning crops you can grow — sow today, harvest in as little as six weeks. Whether you manage a private home, a holiday rental with a kitchen garden, or a hotel terrace in Greece, a small spinach patch delivers fresh leaves for salads and cooked dishes all season long. The video above walks you through the full growing cycle visually; the steps below give you the practical framework to adapt it to the Greek climate and your specific space.
Why Spinach Works So Well in Greece
Greece's mild winters and cool shoulder seasons — autumn and late winter into spring — are nearly perfect for spinach. Unlike lettuce, spinach can handle a light frost, which means you can keep harvesting well into December in most parts of the country and start again in February. The challenge is summer: spinach bolts (sends up a flower stalk and turns bitter) quickly in high heat, so it is best treated as a cool-season crop rather than a year-round one.
For holiday rentals and small hotels, spinach has a practical advantage beyond taste: it looks attractive in raised beds or large terrace planters and signals to guests that the property cares about quality, fresh produce. Even a single 60 cm container can yield enough leaves for a week of side salads.
Choosing the Right Variety
Smooth-leafed varieties such as Viroflay and Matador germinate reliably and grow fast — ideal if you want quick results. Savoy types (crinkled leaves) like Bloomsdale Long Standing are slower but hold up better in slightly warmer spells and have a more robust texture for cooking. For container growing or small raised beds, baby-leaf varieties bred for cut-and-come-again harvesting give the best yield per square metre.
If summer growing is a priority — for a poolside herb garden that needs to stay productive — consider New Zealand spinach (Tetragonia tetragonioides), which is not a true spinach but tolerates heat well and provides a similar leaf for salads and stir-fries.
How to Grow Spinach Step by Step
- 1
Prepare your soil or container
Spinach likes fertile, moisture-retentive soil with a neutral pH (6.5–7.0). Work in a generous amount of well-rotted compost or a balanced granular fertiliser before sowing. In pots or raised beds, use a quality potting mix blended with perlite for drainage. Avoid sandy, fast-draining soils without amendment — spinach that dries out quickly will bolt or taste bitter.
- 2
Sow seeds at the right time and depth
In Greece, the best sowing windows are late August through October for an autumn-winter crop, and February through March for a spring crop. Sow seeds about 1–2 cm deep and 5 cm apart in rows spaced 30 cm apart. For container growing, scatter seeds evenly across the surface and rake them in lightly. Water gently with a fine rose to avoid washing seeds away. Germination takes five to ten days depending on soil temperature; the sweet spot is 10–18 °C.
- 3
Thin seedlings and keep moisture consistent
Once seedlings reach 5 cm tall, thin them to 15 cm apart to give each plant room to develop full leaves. Do not skip this step — overcrowded spinach produces small leaves and is more prone to downy mildew. Keep the soil evenly moist but not waterlogged. In dry spells, water at the base of the plants in the morning so foliage dries quickly; wet leaves overnight encourage fungal problems.
- 4
Feed lightly and watch for pests
A liquid nitrogen feed (diluted seaweed or a balanced liquid fertiliser) applied every three weeks encourages the fast leafy growth spinach is known for. The main pests in Greece are aphids and leaf miners. Aphids can be washed off with a strong jet of water; leaf miners (the larvae leave pale trails in the leaf) are best controlled by removing affected leaves promptly and covering plants with a fine mesh netting. Avoid broad-spectrum sprays — spinach is eaten raw and the leaves are delicate.
- 5
Harvest progressively, not all at once
Begin harvesting outer leaves once the plant has at least six to eight leaves. Use clean scissors or pinch leaves off at the stem — never pull the whole plant unless you intend to clear the bed. Harvesting the outer leaves regularly stimulates the plant to keep producing from the centre. For baby-leaf harvests, cut the whole top of the plant to about 3 cm above soil level and it will re-sprout within ten to fourteen days. Continue harvesting until the plant sends up a central flower stalk, which signals the end of its productive life.
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FAQ
- Can I grow spinach in pots on a Greek balcony?
- Yes — spinach grows very well in containers at least 20 cm deep. Use a rich, moisture-retentive potting mix and water more frequently than you would in a garden bed, as pots dry out faster. Position the container where it gets morning sun and some afternoon shade during warmer months to slow bolting.
- Why does my spinach keep flowering and turning bitter?
- Bolting is triggered by long days and high temperatures. In Greece this typically happens from late April through August. To delay it, choose slow-bolt varieties, keep plants well watered, and harvest frequently. If bolting has started, remove the flowering stem immediately — the plant may still produce a few usable leaves before it exhausts itself.
- How long does it take from seed to first harvest?
- Baby leaves suitable for salads are ready in around 25–30 days. Full-sized leaves for cooking take 45–60 days. Planting in the correct season (cool weather) is the single biggest factor in how quickly and well your spinach grows.