When to Harvest Spinach | Signs Your Spinach Is Ready to Harvest

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When to Harvest Spinach | Signs Your Spinach Is Ready to Harvest

usafarmermarkets
August 26, 2025
4:22 pm

Spinach is one of the easiest leafy greens to grow at home, but knowing the right time to harvest spinach makes all the difference in taste and texture. If you pick it too early, the leaves may be small and less flavorful. If you wait too long, the plant can become tough, bitter, or bolt (produce flowers). Let’s break down exactly how to know when spinach is ready to harvest and the best practices to get fresh, healthy leaves. Another summer vegetable is when to harvest tomatillos.

Table of Contents

How to Know When Spinach is Ready to Harvest

You’ll know spinach is ready for harvest when:

Leaves reach 3–6 inches long (baby spinach can be picked at 2–3 inches).
The plant has at least 5–6 healthy leaves.
The leaves look deep green and firm, not yellow or wilted.

Tip: Harvest outer leaves first, letting the center continue growing for a longer harvest period.

When NOT to Harvest Spinach

Avoid harvesting spinach when:

Leaves are tiny and underdeveloped (less than 2 inches).
The plant shows signs of bolting (sending up a tall flower stalk). Bolted spinach leaves taste bitter.
Leaves look yellow, diseased, or pest-damaged.

Maturity Points for Spinach Plants

Spinach growth stages and harvest timeline:

Baby spinach – Ready in 20–30 days after planting.
Full-size spinach – Ready in 35–50 days.
Bolting stage – Usually happens in warm weather; harvest before this for best taste.

Spinach Harvest Times by Variety

Spinach Type	Appearance at Maturity	Days to Maturity	Harvest Season
Savoy Spinach	Dark green, crinkled leaves, 4–6 inches long	40–50 days	Spring – Fall
Semi-Savoy Spinach	Slightly crinkled leaves, upright growth, 4–6 inches long	40–55 days	Spring – Fall
Flat-Leaf (Smooth) Spinach	Smooth, broad green leaves, 4–7 inches long	35–45 days	Spring – Fall
Baby Spinach	Small, tender leaves, 2–4 inches long, harvested young	25–35 days	Spring – Fall
Malabar Spinach (warm-climate type)	Thick, glossy, vining leaves, 4–6 inches long	50–70 days	Summer – Fall
New Zealand Spinach (heat-tolerant)	Fleshy, triangular leaves, 3–5 inches long	55–70 days	Summer – Fall

Best Time of Day to Harvest Spinach

The morning hours are best for harvesting spinach. The leaves are cool, crisp, and fully hydrated after the night. Harvesting later in the day, especially under hot sun, can make leaves wilt faster. For perennials, see when to harvest asparagus.

How to Harvest Spinach Properly

There are two main ways to harvest spinach:

Cut-and-Come-Again Method – Snip the outer leaves with scissors, leaving the inner leaves and crown intact. This allows multiple harvests.
Whole Plant Harvest – Cut the entire plant at the base if you want one big harvest, especially before it bolts.

What Happens if You Harvest Too Early or Too Late

Too Early – Leaves will be too small, with less flavor and lower yields.
Too Late – Leaves get tough, bitter, and may bolt, making them almost inedible.

How Often to Harvest Spinach (Indoor vs. Outdoor)

Outdoor Spinach – You can harvest every 5–7 days during the growing season.
Indoor Spinach (in pots or hydroponics) – With proper lighting, you can often harvest every 3–5 days since growth is more controlled.

Storage Tips After Harvesting Spinach

Do not wash until ready to use (extra moisture makes spinach spoil faster).
Store unwashed leaves in a plastic bag or container with a paper towel inside to absorb moisture.
Keep in the refrigerator; spinach lasts up to 7 days fresh.
For longer storage, blanch and freeze spinach for use in soups, stews, or smoothies.

Best Practices for Stronger, Tastier Spinach

Plant spinach in cool weather (spring or fall).
Keep soil moist but not soggy.
Harvest often to encourage new, tender growth.
Protect from heat and pests to prevent early bolting.

Final Words

Knowing when to harvest spinach is key to enjoying fresh, tender, and delicious greens from your garden. Whether you prefer baby spinach or mature leaves, harvesting at the right stage will give you the best flavor. Keep an eye on the size of the leaves and avoid waiting until bolting begins. With proper harvesting, you can enjoy a steady supply of spinach all season long.