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Seeds to Start in March

Seed starting in March - Seeds to plant in March

The last average frost date for south coastal British Columbia is March 28. This is a handy reference point for all your garden planning. Basically, this is the month gardeners must use to get ready to take full advantage of the growing season ahead.

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.

Click on the links below for full planting instructions.

For starting indoors:

Agastache
Alyssum
Asclepias
Asparagus
Bergamot
Broccoli
Cabbage
Catnip
Cauliflower
Celery & Celeriac
Chives
Chrysanthemum
Columbine
Coreopsis
Cynoglossum
Delphinium
Echinacea
Florence Fennel (bulbing fennel)
Gaillardia
Gaura
Hollyhock
Iberis
Leeks
Lettuce
Lobelia
Lovage
Marigolds
Marjoram
Mint
Morning Glory
Nemophila
Nicotiana
Onions
Oregano
Peppers
Physalis
Rosemary
Rudbeckia
Sage
Thyme
Tithonia
Tomatoes (March 15th is ideal, transplant end of May/early June)
Verbena
Viola
Yarrow

Seeds to direct sow in March:

Ammi
Arugula
Broad Beans
Calendula
California Poppies
Celosia
Corn Salad
Cornflowers
Cosmos
Gypsophila
Kale & Collards
Lavatera (late in the month)
Lavender
Lunaria
Lupins
Marigolds
Pac Choi & Mustard Greens
Peas
Poppies
Radishes
Scabiosa
Spinach
Sweet Peas
Wallflowers
Wildflower Mixes (March is the best time for these!)
 

 

A note in response to Amanda: Yes, these are recommendations for Lower Mainland BC, the Gulf Islands & Sunshine Coast, and West of the Cascades in WA and OR. Prince George has a last average frost date of June 4 & first average frost date of September 3, so your frost free growing season is 91 days on average.

The recommendations on this page are based on a last frost date of March 28, so we recommend that you make this list your guide for sowing in May. For the best results, you should start as many seedlings as you can indoors or in a greenhouse or cold frame, just to stretch your growing season out. If you build a cloche cover, you may be able to plant many of these seeds in April.

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Comments

This list looks like it is for the lower mainland. Can we get some time-frames for germination/growth so it can be adapted to more northern climates? (Prince George).
Posted by: Amanda