a list for northern cottage gardens in coastal zone 8b
January
Flowers
As early as Jan 15 | Sow seed indoors for season-long blooms: Lisianthus seeds
February
Flowers
Continue to Sow seed indoors for season-long blooms: Lisianthus
As early as Feb 5 | Sow seed indoors for season-long blooms: Anise, Echinacea, Rudbeckia, Snapdragon, and Yarrow
As early as Feb 12 | Sow seed indoors for season-long blooms: Hollyhock and Viola
As early as Feb 19 | Sow seed indoors for season-long blooms: Alyssum, Amaranth, Aster, Baby's Breath, Black Eyed Susan, Flax, Bupleurum, Campanula, Carnation, Celosia, Chinese Lanterns, Cosmos, Dianthus, Foxglove, Godetia, Gomphrena, Marigold, Mexican Sunflower, Painted Daisy, Pinks, Poppy, Shasta Daisy, Strawflower, and Zinnia
As early as Feb 26 | Sow seed indoors for season-long blooms: Matricaria
March
Flowers
Continue to Sow seed indoors for mid-season blooms: Alyssum, Amaranth, Anise, Aster, Baby's Breath, Black Eyed Susan, Bupleurum, Campanula, Carnation, Celosia, Chinese Lanterns, Cosmos, Dianthus, Echinacea, Flax, Foxglove, Godetia, Gomphrena, Hollyhock, Lisianthus, Marigold, Matricaria, Mexican Sunflower, Painted Daisy, Pinks, Poppy, Rudbeckia, Shasta Daisy, Snapdragon, Strawflower, Viola, Yarrow and Zinnia
As early as Mar 4 | Sow seed indoors for season-long blooms: Bee Balm, Calendula, Columbine, Dahlia seeds, Daucus, Didiscus, Nigella, Statice and Stock
As early as Mar 11 | Sow seed indoors for season-long blooms: Shirley Poppy
As early as Mar 18 | Sow seed indoors for season-long blooms: Bachelor Buttons and Clarkia
As early as Mar 25 | Sow seed indoors for season-long blooms: Sunflower
As late as June 2 | Last day to sow seeds: Carnation and Dianthus (if sown this late, blooms will be dependent on Autumn weather)
As late as June 12 | Last day to sow seeds: Yarrow (if sown this late, blooms will be dependent on Autumn weather)
As late as June 22 | Last day to sow seeds: Anise, Aster, Pinks, Rudbeckia, Snapdragon and Statice (if sown this late, blooms will be dependent on Autumn weather)
July
Flowers
Direct Sow seed outdoors for late Summer/Autumn blooms: Anemone, Argeratum, Baby's Breath, Bachelor Buttons, Bee Balm, Black Eyed Susan, Bupleurum, Calendula, Candy Tuft, Celosia, Chinese Lanterns, Clarkia, Columbine, Cosmos, Dahlia seeds, Echinacea, Feverfew, Flax, Foxglove, Godetia, Gomphrena, Hollyhock, Larkspur, Marigold, Mexican Sunflower, Nigella, Painted Daisy, Poppy, Shasta Daisy, Shirley Poppy, Strawflower, Sunflower, Sweet Annie, and Viola
As late as Jul 2 | Last day to sow seeds: Amaranth and Matricaria (if sown this late, blooms will be dependent on Autumn weather)
As late as Jul 12 | Last day to sow seeds: Didiscus and Stock (if sown this late, blooms will be dependent on Autumn weather)
As late as Jul 17 | Last day to sow seeds: Celosia, (if sown this late, blooms will be dependent on Autumn weather)
As late as Jul 27 | Last day to sow seeds: Alyssum, Clarkia, Daucus, Godetia, Strawflower, and Zinnia (if sown this late, blooms will be dependent on Autumn weather)