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Package of Johnny's Selected Seeds
Package of Johnny's Selected Seeds
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Enter spring frost-free date (include year):  
mm/dd/yyyy
 
Crop Number of weeks to start seeds before setting-out date When To start inside   Setting-out date
From To Safe time to set out plants (relative to frost-free date) From To
Artichoke 8
on frost-free date
Basil 6
1 week after
Beets* 4 to 6
2 weeks before
Broccoli 4 to 6
2 weeks before
Cabbage 4 to 6
4 weeks before
Cauliflower 4 to 6
2 weeks before
Celery & celeriac 10 to 12
1 week after
Collards 4 to 6
4 weeks before
Corn salad/mache 4 to 6
3 to 6 weeks before
Corn* 2 to 4
0 to 2 weeks after
Cucumber 3 to 4
1 to 2 weeks after
Eggplant 8 to 10
2 to 3 weeks after
Kale 4 to 6
4 weeks before
Kohlrabi* 4 to 6
4 weeks before
Leeks 8 to 10
2 weeks before
Lettuce 4 to 5
3 to 4 weeks before
Melons 3 to 4
2 weeks after
Mustard* 4 to 6
4 weeks before
Okra* 4 to 6
2 to 4 weeks after
Onions 8 to 10
4 weeks before
Parsley 9 to 10
2 to 3 weeks before
Peas* 3 to 4
6 to 8 weeks before
Peppers 8
2 weeks after
Pumpkins 3 to 4
2 weeks after
Spinach 4 to 6
3 to 6 weeks before
Squash 3 to 4
2 weeks after
Swiss chard 4 to 6
2 weeks before
Tomatoes 6 to 8
1 to 2 weeks after
Watermelon 3 to 4
2 weeks after

Ageratum 6 to 8
on frost-free date
Agrostemma (Corn Cockle)* 6 to 8
on frost-free date
Amaranthus 4 to 6
1 week after
Ammi (False Queen Anne's Lace)* 6 to 8
on frost-free date
Artemisia (Sweet Annie) *** 6 to 8
on frost-free date
Asclepias (Butterfly Weed) 10 to 12
on frost-free date
Aster, China 6 to 8
on frost-free date
Bells of Ireland** 6 to 8
on frost-free date
Calendula* 6 to 8
on frost-free date
Cardoon 6 to 8
on frost-free date
Carthamus (Safflower)* 4 to 6
on frost-free date
Castor Bean 6 to 8
1 week after
Celosia 6 to 8
1 week after
Centaurea (Bachelor's Button)* 6 to 8
on frost-free date
Chinese Lanterns 8 to 12
on frost-free date
Coleus 8
1 week after
Cosmos* 5 to 7
on frost-free date
Craspedia (Drumstick Flower) 8 to 10
on frost-free date
Datura (Angel's Trumpet) 8 to 12
2 to 3 weeks after
Delphinium 10 to 16
on frost-free date
Dianthus (Sweet William) 10 to 12
1 to 2 weeks before
Digitalis (Foxglove) 10 to 12
on frost-free date
Eucalyptus 10 to 12
on frost-free date
Euphorbia (Snow-on-the-Mountain)* 4 to 6
on frost-free date
Flower Collections & Mixes* 6 to 8
on frost-free date
Forget-Me-Not 8 to 9
on frost-free date
Gaillardia (Blanket Flower) 8 to 10
on frost-free date
Gomphrena (Globe Amaranth) 6 to 8
on frost-free date
Helianthus maximillianii 8 to 10
on frost-free date
Hibiscus 8 to 10
1 week after
Hollyhock 8 to 10
on frost-free date
Hyacinth Bean 4 to 6
1 week after
Impatiens 8 to 10
1 week after
Kale, Ornamental 6 to 8
on frost-free date
Larkspur* 6 to 8
on frost-free date
Lisianthus 12 to 13
on frost-free date
Lupine 6 to 8
2 weeks before
Marigold 6 to 8
1 week after
Monarda (Bee Balm) 6 to 8
on frost-free date
Morning Glory 3 to 4
3 to 4 weeks after
Nigella* 4 to 6
on frost-free date
Phlox** 4
1 to 2 weeks before
Pepper, Ornamental 8
1 week after
Petunia 8 to 10
on frost-free date
Polygonum (Prince's Feather) 8 to 10
on frost-free date
California Poppy* 2 to 3
on frost-free date
Corn Poppy* 2 to 3
on frost-free date
Iceland Poppy 6 to 8
on frost-free date
Ptilotus 6 to 8
on frost-free date
Rudbeckia (Black Eyed Susan) 8 to 10
on frost-free date
Salpiglossis (Painted Tongue) 4 to 6
on frost-free date
Salvia 6 to 8
on frost-free date
Sanvitalia 6 to 8
on frost-free date
Scabiosa (Pincushion Flower) 4 to 6
on frost-free date
Scarlet Runner Bean 2 to 3
soil 60 degrees
Snapdragon 8 to 10
on frost-free date
Statice 8
on frost-free date
Stock 8 to 10
on frost-free date
Sunflowers* 3-4
on frost-free date
Strawflower 6 to 8
on frost-free date
Sweet Pea* 4 to 6
1 to 2 weeks before
Thunbergia (Black Eyed Susan Vine) 6 to 8
on frost-free date
Tithonia (Mexican Sunflower)* 6
1 week after
Verbena 8 to 12
on frost-free date
Viola (Pansy) 8 to 12
1 to 2 weeks before
Yarrow 8 to 12
on frost-free date
Zinnia 4
1 week after
* Usually direct-sown, but may be started indoors
** Specifically recommended for direct seeding outdoors
*** We have left current crop failures in the list because they may be available next year.
Note: Dates are the same from year to year, but this table requires a year for computation simplicity
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