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Canola Growth Stages
Determining the growth of stage of canola is relatively simple using a scale developed in Canada. This scale uses five principle stage designations and subdivides these into secondary stages. These stages are described below:
| Stage | Description of main Raceme |
| 0 Pre-emergence | |
| 1 Seedling | |
| 2 Rosette | 2.1 First true leaf expanded 2.2 Second true leaf expanded 2.3 etc for each additional leaf |
| 3 Bud | 3.2 Flower cluster visible at center of rosette 3.3 Lower buds yellowing |
| 4 Flower | 4.1 First flow open 4.2 Many flowers opened, lower pods elongating 4.3 Lower pods starting to fill 4.4 Flowering complete, seed enlarging in lower pods |
| 5 Ripening | 5.1 Seeds in lower pods full size, translucent 5.2 Seeds in lower pods green 5.3 Seeds in lower pods green-brown or green-yellow mottled 5.4 Seeds in lower pods yellow or brown 5.5 Seeds in all pods brown, plant dead |
Canola in the 5.3 to early 5.4 stage should be near or at swathing stage. These stages change very rapidly during the ripening period if temperatures are warm and under dry conditions.
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