X

Season

0: Unsuitable Month

A: Sowing + Planting

B: Flowering

E: Harvest

F: Planting + Harvest

L: Sowing + Planting + Harvest

P: Planting

R: Sowing + Harvest

S: Sowing

T: Harvest + Sowing

U: Flowering + Harvest

W: Growth

Z: Planting + Flowering

Dormancy Type

Physiological: Growth inhibitors in the embryo (ABA, phenols)

Physical: Hard, impermeable seed coat (testa)

Morphological: Immature embryo at the time of seed maturity

Combination: A combination of several methods

Frost-resistant / Winter-hardy?

Hardy: USDA Zone 7 and above

Frost-resistant: slightly below -1°C, USDA Zone 9–10 and above

Sensitive: USDA Zone 10 or higher, minimum 0°C

USDA-Zones
Zone	fom °C	to °C
8a	−12,2 °C	−9,5 °C
8b	−9,4 °C	−6,7 °C
9a	−6,6 °C	−3,9 °C
9b	−3,8 °C	−1,2 °C
10a	−1,1 °C	+1,6 °C
10b	+1,7 °C	+4,4 °C
11a	+4,5 °C	+7,2 °C
11b	+7,2 °C	+10,0 °C
12a	+10,0 °C	+12,8 °C
12b	+12,8 °C	+15,6 °C
13a	+15,6 °C	+18,3 °C
13b	+18,3 °C	+21,1 °C