F1 Hybrid

Spinach

40d to harvest

Tender, velvety flat leaves unfurl in a lush, dark green rush—so quick to mature that you’ll be harvesting at peak sweetness in about 40 days. F1 Hybrid spinach forms an even, upright rosette with a smooth, succulent texture and a mild, clean flavor that shines in fresh salads and wilts beautifully for warm dishes. Ideal for gardeners who want consistent, market-ready leaf quality from the first cut to the next.

Crop Dates

Milestone	Date
Start Indoors	Direct Sow
Last Frost	Feb 9th
Transplant / Sow Outdoors	Feb 9th
Harvest Begins	Mar 21st
Harvest Ends	Dec 9th

Crop Details

Trait	Value
Days to Maturity	40
Sun Requirements	Full Sun
Growth Habit	Rosette
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	40
Min Night Temp (°F)	30
Harden Off (days)	Not Required

Frequently Asked Questions

What pest or disease commonly affects Spinacia oleracea, and how can I control it at home?

Watch for downy mildew and leaf spots, which show up as yellow patches, gray/purple growth on the underside, or dark spotting on leaves. Remove badly affected leaves immediately and improve airflow by spacing plants properly; avoid overhead watering so foliage stays dry. If the problem keeps spreading, use a labeled fungicide for leafy greens and follow the label reapplication interval.

How often should I water Spinacia oleracea during the main growing phase (about weeks 2–6)?

Keep the soil consistently evenly moist, not soggy—spinach prefers a cool, damp root zone throughout growth. In typical home gardens this usually means watering 1–2 times per week, increasing to 2–3 times during hot or windy spells, with enough water to wet the top 2–4 inches. Mulch lightly after plants establish to reduce drying, and stop letting the surface dry out completely between waterings.

How do I know when Spinacia oleracea is ready to harvest?

Harvest at about 40 days when leaves reach usable size (often 4–6+ inches long) and before plants bolt or form flower stalks. For baby leaves, cut outer leaves with scissors, leaving the center growing point to regrow for several pickings. If you notice rapid stem elongation or tight, rising centers, harvest immediately to avoid bitter, tough leaves.