Basically, this is the month gardeners must use to get ready to take full advantage of the growing season ahead.
Below is a list of seeds to start in March. By starting your seeds in March, they will be ready for transplanting into the garden by the time the nighttime temperatures have warmed up in May. Other seeds actually benefit from cool weather and the risk of frost, and they are shown below for direct sowing in March.
If you live outside of the Lower Mainland, you can use still make use of this reference. Simply think of it as a list of the seeds to start two to four weeks before your last average frost date.
For starting indoors:
Celery & Celeriac
Florence Fennel (bulbing fennel)
Tomatoes (March 15th is ideal, transplant end of May/early June)
Seeds to direct sow in March:
Kale & Collards
Lavatera (late in the month)
Pac Choi & Mustard Greens
Wildflower Mixes (March is the best time for these!)
These are recommendations for Lower Mainland BC, the Gulf Islands & Sunshine Coast, Vancouver Island and West of the Cascades in Washington and Oregon.