Table 1. The flowering and harvest dates, the seed
maturation rating, and the germination and yield components of the
wildflower species evaluated in 1994.
|
Species
|
Flowering Date
|
Harvest Date
|
SMRz
|
% germ.
|
yield lbs/A
|
viable seed yield lbs/A
|
Cat.y
|
|
Silene armeria
|
4-Apr
|
26-May
|
1
|
100
|
1122
|
1122
|
I
|
|
Hesperis matronalis
|
14-Apr
|
1-Jul
|
2
|
98
|
2658
|
2605
|
I
|
|
Monarda citriodora
|
29-Apr
|
18-Jul
|
1
|
78
|
1426
|
1112
|
I
|
|
Coreopsis tinctoria
|
26-Apr
|
21-Jun
|
1
|
63
|
293
|
185
|
II
|
|
Bidens aristosa
|
19-Aug
|
20-Oct
|
1
|
59
|
70
|
41
|
II
|
|
Rudbeckia hirta
|
18-May
|
26-Jul
|
1
|
53
|
944
|
500
|
II
|
|
Centaurea cyanus
|
11-Mar
|
9-Jun
|
2
|
50
|
1646
|
823
|
II
|
|
Ipomopsis rubra
|
18-May
|
2-Sep
|
1
|
45
|
5112
|
2300
|
II
|
|
Gypsophilia muralis
|
18-May
|
21-Jun
|
2
|
68
|
176
|
120
|
II
|
|
Chrysanthemum
leucanthemum
|
23-Mar
|
18-May
|
4
|
22
|
120
|
27
|
II
|
|
Achillea millefolium
|
29-Apr
|
1-Jul
|
2
|
10
|
169
|
17
|
III
|
|
Coreopsis lanceolata
|
22-Apr
|
5-Jun
|
4
|
43
|
326
|
140
|
III
|
|
Cosmos bipinnatus
|
26-May
|
12-Aug
|
5
|
0
|
935
|
0
|
III
|
|
Cosmos sulphureus
|
18-May
|
26-Jul
|
5
|
48
|
228
|
110
|
III
|
|
Eschscholzia
californica
|
8-Mar
|
5-Jun
|
4
|
28
|
132
|
37
|
III
|
|
Gaillardia aristata
|
29-Apr
|
10-Sep
|
3
|
14
|
227
|
32
|
III
|
|
Gaillardia pulchellaq
|
29-Apr
|
24-Jun
|
3
|
20
|
783
|
157
|
III
|
|
Oenothera speciosa
|
4-Apr
|
26-May
|
2
|
0
|
270
|
0
|
III
|
|
Papaver rhoeas
|
4-Apr
|
9-Jun
|
1
|
0
|
55
|
0
|
III
|
|
Phlox drummondii
|
8-Mar
|
5-Jun
|
5
|
68
|
414
|
281
|
III
|
|
Salvia coccinea
|
5-Jun
|
2-Sep
|
5
|
68
|
249
|
20
|
III
|
|
Verbena tenuisecta
|
8-Mar
|
18-May
|
5
|
5
|
42
|
2
|
III
|
zSeed maturation ratings (SMR) were based on a
scale of 1 to 5 with 1=85% to 100% of seeds mature at one time, 2=60%
to 84% of seeds mature at one time, 3=seeds mature over a period of
weeks, seed heads remain intact, 4=seeds mature and shatter over a
period of 2 to 4 weeks, and 5=seeds mature and shatter over a period
of 4 to 8 weeks.
yCategories for the potential commercial seed
production species were as follows: I=excellent potential: seed
maturation rating 1 or 2, and germination > 75%, II=moderate
potential: seed maturation rating 1,2,3,or 4, and germination >
44%, III= low potential: seed maturation rating 5, and/or germination
< 45%.