MICRORADICLE

Cultivars / Cut flowers

Swiss Giant Mix

Strawflower · Xerochrysum bracteatum

Plant in engine

DTM

93 d

142 d occupancy · tender

Rows

3

9 in in-row

Density

4

plants / bed-ft

Yield

8

stems / bed-ft

Direct $/ft

$5.76

$0.80 / stem

30 in bed · cross sectionscale 1:8 · looking east
COMPOST ½ inLOAM 8 inPATHPATH30 IN GROWINGR1R2R3SWISS GIANT MIX3 ROW · 9 in IN-ROW4 PLT / FT · 2 DRIP · GERM 65°FSTANDARD 30 IN BIOINTENSIVE · AISLES 18 IN TYP.

Cut flower protocol

Filler · 18 in stem

Support netting
1-layer Hortonova · 8 in mesh · 16 in
Pinch
8 in · leave 3 nodes · +8 d DTM
Harvest stage
Cracked bud · every 4 d
Stem yield
7 / plant · 8 / bed-ft
Pulse
Plain cold water · vase 21 d
DTM on this sheet
93 d field-to-cut (includes pinch)

Propagation

Method
Transplant
Cell size
72s
Nursery lead
28 d
Germination
8 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
93 d
Holding
21 d
Occupancy
142 d
Multicut
yes · 8 cuts · 4 d
Fall photoperiod
×1
Frost hardiness
Tender

Yield & revenue

Sales unit
stem
Units / bed-ft
8
Avg unit wt
0 lb
Target lb / bed-ft
0.2 lb
Cull rate
10%
Wholesale / Direct
$0.40 / $0.80

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
Light
N / 100 bed-ft
1.1 lb
P / 100 bed-ft
0.3 lb
K / 100 bed-ft
1.6 lb
N-P-K / 50 ft
0.6 / 0.2 / 0.8 lb
Family
Asteraceae

On this farm · 50 ft block

Season window
2026-04-15 → 2026-08-09
First greenhouse
2026-03-18
First harvest
2026-07-17
Successions that fit
2 · every 21 d
Bed-ft for 50 lb
232 ft
Seed for 50 ft
236 seeds · 200 plants
Wholesale / Direct · 50 ft
$144.00 / $288.00

Notes

Cut when bracts are colored but center still tight. Dries hanging. Swiss Giants.

Companions

basil · dill · alyssum

Avoid

fennel