Notes
Pinch. One net layer. Cut when petals are just unfurling. Airy mixer, not a cold-box crop below 40°F.
Cultivars / Cut flowers
Purity
Cosmos · Cosmos bipinnatus
DTM
80 d
128 d occupancy · tender
Rows
3
9 in in-row
Density
4
plants / bed-ft
Yield
10
stems / bed-ft
Direct $/ft
$7.22
$0.85 / stem
Cut flower protocol
Airy texture · 22 in stem
- Support netting
- 1-layer Hortonova · 8 in mesh · 18 in
- Pinch
- 8 in · leave 3 nodes · +10 d DTM
- Harvest stage
- ½ open · every 3 d
- Stem yield
- 8 / plant · 10 / bed-ft
- Pulse
- Plain cold water · vase 6 d
- DTM on this sheet
- 80 d field-to-cut (includes pinch)
Propagation
- Method
- Direct or transplant
- Cell size
- 72s
- Nursery lead
- 21 d
- Germination
- 5 d
- Germ temp
- 65°F – 85°F (opt 75°F)
- Seed spacing
- 2 in
Field geometry · 30 in
- Bed width
- 30 in
- Rows / bed
- 3
- In-row
- 9 in
- Seed spacing
- 2 in
- Plants / linear ft
- 4
- Plants / 50 ft
- 200
Timeline
- DTM from field
- 80 d
- Holding
- 21 d
- Occupancy
- 128 d
- Multicut
- yes · 10 cuts · 3 d
- Fall photoperiod
- ×1
- Frost hardiness
- Tender
Yield & revenue
- Sales unit
- stem
- Units / bed-ft
- 10
- Avg unit wt
- 0 lb
- Target lb / bed-ft
- 0.3 lb
- Cull rate
- 15%
- Wholesale / Direct
- $0.40 / $0.85
Irrigation
- Drip lines / bed
- 2
- Emitter spacing
- 8 in
- Emitter GPH
- 0.42
- Weekly water
- 0.9 in
- GPH / 50 ft
- 63
- Gal / week · 50 ft
- 70.1
Soil extraction
- Fertility demand
- Moderate
- N / 100 bed-ft
- 1.2 lb
- P / 100 bed-ft
- 0.3 lb
- K / 100 bed-ft
- 1.8 lb
- N-P-K / 50 ft
- 0.6 / 0.2 / 0.9 lb
- Family
- Asteraceae
On this farm · 50 ft block
- Season window
- 2026-04-15 → 2026-08-22
- First greenhouse
- 2026-03-25
- First harvest
- 2026-07-04
- Successions that fit
- 2 · every 21 d
- Bed-ft for 50 lb
- 197 ft
- Seed for 50 ft
- 236 seeds · 200 plants
- Wholesale / Direct · 50 ft
- $170.00 / $361.25
Companions
basil · dill · alyssum
Avoid
fennel