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Seed Starting Chart For
Growing Annual Flowers

This seed starting chart will help you plan when to start your annual seeds. If you have annuals planted in your garden this year, you can gather seeds from them for planting next year.

marigold seeds

A picture of a marigold and just a small batch of seeds that I've collected from one plant. There are plenty of annual flowers still on the plant and more seeds could be collected if needed. As you can see the amount here is huge compared to the amount in a seed packet. It won't be hard to turn this single pile into a full flat or two of marigolds next spring as long as the seeds are kept dry during the winter.


Annual Flowers Seed Starting Chart

Name Of
Annual Flowers
and
Annual Herbs
Days Seed
Takes To
Germinate
Start Seeds INDOORS
# of weeks
before last frost
Start Seeds OUTDOORS
# of weeks
before last frost
African Daisy 21-35 6-8 4
Ageratum 5-10 6-8 last frost
Amaranthus 10-15 3-4 last frost
Anchusa 14-21 6-8 last frost
Aster, China 10-14 6-8 last frost
Baby-blue-eyes 7-12 NR 6-8
Baby's-breath 10-15 4-6 6
Balsam 8-14 6-8 last frost
Basil 7-10 6-8 last frost
Bells-of-Ireland 25-35 NR 6-8
Black-eyed-Susan Vine 10-15 6-8 last frost
Blue Daisy 25-35 10-12 6
Blue lace flower 15-20 6-8 last frost
Browallia 14-21 6-8 NR
Calendula 10-14 4-6 6
California Poppy 10-12 NR 4-6
Calliopsis 5-10 6-8 last frost
Campanula 10-14 6-8 4
Candytuft 10-15 6-8 last frost
Cape Marigold 10-15 4-5 last frost
Castor Bean 15-20 6-8 last frost
Celosia 10-15 4-6 last frost
Chrysanthemum 10-18 8-10 last frost
Cineria 10-15 24-26 NR
Clarkia 5-10 NR last frost
Coleus 10-15 6-8 NR
Cornflower 7-14 4-6 6
Cosmos 5-10 5-7 last frost
Creeping Zinnia 10-15 NR last frost
Dahlberg Daisy 10-15 6-8 NR
Dahlia 5-10 4-6 last frost
Dianthus 5-10 8-10 last frost
Dusty Miller 10-15 8-10 NR
English Daisy 10-15 6-8 6
Flowering Cabbage and Kale 10-18 6-8 NR
Forget-me-not 8-14 6-8 6
Four-o'clock 7-10 4-6 last frost
Fuchsia 21-26 24-26 NR
Gaillardia 15-20 4-6 last frost
Gazania 8-14 4-6 last frost
Geranium 5-15 12-15 NR
Gerbera 12-25 8-10 NR
Globe Amaranth 12-20 6-8 last frost
Gloriosa Daisy 5-10 6-8 2
Hibiscus 15-20 6-8 last frost
Hollyhock 10-14 6-8 NR
Ice Plant 15-20 10-12 NR
Impatiens 15-20 10-12 NR
Ivy Geranium 5-15 12-16 NR
Kingfisher Daisy 25-35 10-12 6
Kochia 10-15 4-6 last frost
Lantana 40-45 12-14 NR
Larkspur 8-15 6-8 4-6
Lavatera 15-20 NR 4-6
Linaria 10-15 4-6 6
Lisianthus 12-20 28-32 NR
Lobelia 15-20 10-12 NR
Love-in-a-mist 10-15 4-6 6
Marigold, African 5-7 4-6 NR
Marigold, French 5-7 4-6 last frost
Mexican Sunflower 5-10 6-8 last frost
Mignonette 5-10 NR 4-6
Money Plant 10-14 6-8 4
Monkey Flower 8-12 10-12 NR
Morning-glory 5-7 4-6 last frost
Nasturtium 7-12 NR last frost
Nemesia 7-14 4-6 last
New Guinea
Impatiens
14-28 10-12 NR
Nicotiana 10-20 6-8 last frost
Nierembergia 15-20 10-12 NR
Nolana 7-10 4-6 last frost
Ornamental Pepper 21-25 6-8 NR
Pansy 10-20 6-8 NR
Parsley 14-21 6-8 2-4
Penstemon 10-15 6-8 6-8
Petunia 10-12 10-12 NR
Phlox 10-15 NR 6-8
Pincushion Flower 10-15 4-5 last frost
Poor-man's Orchid 20-25 10-12 NR
Poppy 10-15 NR 6-8
Portulaca 10-15 4-6 last frost
Salpiglossis 15-20 6-8 NR
Salvia 12-15 6-8 NR
Scarlet Runner Bean 6-10 NR last frost
Snapdragon 10-14 6-8 2
Spider Flower 10-14 4-6 last frost
Spurge 10-15 6-8 last frost
Statice 15-20 8-10 last frost
Stock 7-10 6-8 last frost
Strawflower 7-10 4-6 last frost
Sunflower 10-14 NR last frost
Swan River Daisy 10-18 4-6 NR
Sweet Alyssum 8-15 4-6 4
Sweet Pea 20-30 NR 6-8
Tohoka Daisy 25-30 6-8 4-6
Verbena 20-25 12-14 NR
Wishbone Flower 15-20 10-12 NR
Zinnia 5-7 4-6 last frost

NR on the seed starting chart means Not Recommended
Last frost means to plant after danger of frost has passed

When the seed starting chart shows a NR it may be the plant doesn't transplant well or that the growing time isn't long enough for seed starting.
California poppies and Sunflowers don't transplant well so they are marked with a NR on the seed starting chart. This doesn't mean that transplanting can't be done, just that it's difficult.
I've transplanted sunflowers with very few casualties, but wiped out most of the poppy seedlings I grew.

You'll need to have a calendar and the last expected frost date for you area before setting up your planting schedule.

For my gardening zone the last frost date is around May 15th. Lets say I wanted to plant Zinnia seed which should be started indoors 4-6 weeks before they're ready to go outdoors. I would go to the May calendar page and count backwards 4-6 weeks to end up with April 3rd -17th as the time to begin my seeds indoors. If I wanted to plant them outdoors in the soil, I'd plant them after May 15th.

Return to Annual Flowers from Seed Starting Chart
Annuals From Seed has tips to get your annuals growing.
Self Seeding Annuals are a great way to buy plants once but get two or more years from them.

A garden is never so good as it will be next year - Thomas Cooper

There is always music amongst the trees in the garden,
But our hearts must be still to hear it.

green thumb A green thumb is nothing more than hard work and the desire to make things grow.
Albert E. Tuttle

Step by step gardens are the easy way to create beauty in your yard.

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