Notes
Downy-mildew resistant savoy. Germination collapses above 75°F — pre-sprout in fridge for September sowings. Overwinter under row cover in zone 7–8.
Cultivars / Leafy greens
Corvair
Spinach · Spinacia oleracea
DTM
40 d
72 d occupancy · extreme
Rows
5
2 in in-row
Density
30
plants / bed-ft
Yield
0.9
lb / bed-ft
Direct $/ft
$6.62
$8.00 / lb
Propagation
- Method
- Direct seed
- Cell size
- —
- Nursery lead
- direct only
- Germination
- 8 d
- Germ temp
- 35°F – 68°F (opt 50°F)
- Seed spacing
- 1 in
Field geometry · 30 in
- Bed width
- 30 in
- Rows / bed
- 5
- In-row
- 2 in
- Seed spacing
- 1 in
- Plants / linear ft
- 30
- Plants / 50 ft
- 1500
Timeline
- DTM from field
- 40 d
- Holding
- 8 d
- Occupancy
- 72 d
- Multicut
- yes · 3 cuts · 12 d
- Fall photoperiod
- ×1.25
- Frost hardiness
- Extreme
Yield & revenue
- Sales unit
- lb
- Units / bed-ft
- 0.9
- Avg unit wt
- 1 lb
- Target lb / bed-ft
- 0.9 lb
- Cull rate
- 8%
- Wholesale / Direct
- $4.50 / $8.00
Irrigation
- Drip lines / bed
- 2
- Emitter spacing
- 8 in
- Emitter GPH
- 0.42
- Weekly water
- 0.85 in
- GPH / 50 ft
- 63
- Gal / week · 50 ft
- 66.2
Soil extraction
- Fertility demand
- Heavy
- N / 100 bed-ft
- 1.6 lb
- P / 100 bed-ft
- 0.3 lb
- K / 100 bed-ft
- 1.4 lb
- N-P-K / 50 ft
- 0.8 / 0.2 / 0.7 lb
- Family
- Amaranthaceae
On this farm · 50 ft block
- Season window
- 2026-02-18 → 2026-11-24
- First greenhouse
- —
- First harvest
- 2026-03-30
- Successions that fit
- 8 · every 10 d
- Bed-ft for 50 lb
- 61 ft
- Seed for 50 ft
- 1765 seeds · 1500 plants
- Wholesale / Direct · 50 ft
- $186.30 / $331.20
Companions
strawberry · pea · onion
Avoid
potato