Are you wondering when to sow seeds in Montreal?
Here’s my guide to when you should sow seeds indoors before the season begins and outdoors when you see common plants blooming.
| Date | Bloom | Sow inside | Sow outside | Other info |
| February 18, 2019 | peppers, zinnias | |||
| February 25, 2019 | datura, delphiniums, nicotiana | |||
| March 4, 2019 | cabbage, tomatoes | |||
| March 11, 2019 | brussel sprouts, celeriac | |||
| March 18, 2019 | marigolds, green cauliflower | |||
| April 15, 2019 | ||||
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daffodil, forsythia | Cold hardy seeds such as: allysum, baby’s breath, chard, calendula, carrots, cornflower, hollyhock, impatiens, lovage, peas, poppies, radishes, rudbeckia, spinach, sweet pea flowers | ||
 |
lilac, dogwood | Cold hardy seedlings such as: cabbage, broccoli, dusty miller, feathertop grass, larkspur, leek, onion, pansy, penstemon, salvia and snapdragon | ||
| May 20, 2019 | summer savory | |||
| May 27, 2019 | nicotiana | |||
| May 31, 2019 | average last frost | |||
| June 3, 2019 | datura, delphinium, brussel sprouts | |||
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spirea (all the pink types) | Cold tender seeds such as: basil, beans, beets, borage, catnip, cilantro, corn, chervil, cucumber, dandelion, delphinium, green manures, lavatera, lettuce, okra, melon, marigold, mint, morning glory, nasturtiums, nicotiana, parsley, petunia, savory, sunflower, thyme, zinnia | ||
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black locust trees, Vanhoutte spirea (the white one) | Cold tender plants, such as anise, datura, dahlia, dematis, grapes, ladies mantle, lavender, peppers, tomatoes | ||
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Mock orange, catalpa | Fall seeds, such as broccoli, brussel sprouts, cabbage, celeriac, cauliflower, fennel |
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