SproutSmart
SproutSmart™ Intelligent Garden Sowing

F1 Hybrid

Family: Amaranthaceae Leafy Green

Planting Schedule

Provide your location or planting zone to unlock dates and add F1 Hybrid to a garden.

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.

Light: Full SunMaturity: 40 DaysHabit: Rosette

Botanical illustration of F1 Hybrid

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F1 Hybrid Planting Dates by USDA Zone

Estimated US hardiness-zone windows for sow, transplant, and harvest. Enter a US ZIP above for exact local dates, or open a zone below.

Zone Start Indoors Sow / Transplant Harvest
Zone 1a Protected Environment Only
Zone 1b Direct Sow Jun 1st Jul 11th – Aug 1st
Zone 2a Direct Sow May 25th Jul 4th – Aug 29th
Zone 2b Direct Sow May 15th Jun 24th – Aug 25th
Zone 3a Direct Sow May 15th Jun 24th – Sep 1st
Zone 3b Direct Sow May 19th Jun 28th – Sep 21st
Zone 4a Direct Sow May 15th Jun 24th – Sep 24th
Zone 4b Direct Sow May 13th Jun 22nd – Sep 27th
Zone 5a Direct Sow May 8th Jun 17th – Sep 30th
Zone 5b Direct Sow May 4th Jun 13th – Oct 5th
Zone 6a Direct Sow May 1st Jun 10th – Oct 10th
Zone 6b Direct Sow Apr 25th Jun 4th – Oct 16th
Zone 7a Direct Sow Apr 20th May 30th – Oct 20th
Zone 7b Direct Sow Apr 10th May 20th – Oct 28th
Zone 8a Direct Sow Apr 1st May 11th – Nov 5th
Zone 8b Direct Sow Mar 23rd May 2nd – Nov 12th
Zone 9a Direct Sow Mar 6th Apr 15th – Nov 26th
Zone 9b Direct Sow Feb 9th Mar 21st – Dec 9th
Zone 10a — Oct 1st Nov 10th – Feb 28th
Zone 10b — Oct 1st Nov 10th – Feb 28th
Zone 11a — Oct 1st Nov 10th – Feb 28th
Zone 11b — Oct 1st Nov 10th – Feb 28th
Zone 12a — Oct 1st Nov 10th – Feb 28th
Zone 12b — Oct 1st Nov 10th – Feb 28th
Zone 13a — Oct 1st Nov 10th – Feb 28th
Zone 13b — Oct 1st Nov 10th – Feb 28th

Crop Details

TraitValue
Days to Maturity40
Sun RequirementsFull SunFull sun
Growth HabitRosette
Support NeededNone
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)40
Min Night Temp (°F)30
Harden Off (days)Not Required

Culinary Notes


Chef's Note

This F1 flat-leaf spinach is all about speed and uniform tenderness—its mild flavor stays clean in raw applications and wilts fast without turning ragged. Choose it when you want silky mouthfeel and a bright, lemony lift rather than deep, muddy bitterness.

Best Uses

  • fast wilted side with butter and a squeeze of lemon
  • spinach-forward salad where the leaves stay glossy under dressing
  • sautéed into omelets and frittatas for a tender bite
  • lightly blanched and folded into pasta with olive oil and grated cheese

Flavor Profile

mild, clean grassy sweetness tender, velvety leaf texture soft lactone-like freshness that holds up to quick heat

Kitchen Pairings

lemon butter olive oil parmesan eggs ricotta

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.