Here is my best case seed starting schedule this year with soil blocking. The last frost date for our area is April 15 and we do cover all of our new plantings with floating row cover for added protection so, late cool temperatures aren’t a facter for us. If your last frost date is later, just add the time difference. Also keep in mind that soil blocked plants grow much quicker which is why you start them later then you do with other methods.
Spring Seed Starting Schedule:
Basil: Start week of March 10, continue succession planting throughout season.
Sage: Start anytime- cold hardy.
Ageratum: Start week of March 10
Zinnias: week of March 24 absolute earliest, continue succession planting throughout season.
- Benary Mix
- Benary’s Carmine Rose
- Benary Yellow
- Benary Orange
- Benary Lilac
- Benary Purple
- Benary Scarlet
- Benary Salmon Rose
- Benary Lime
- Oklahoma Mix
- Oklahoma Ivory
Rudbeckia: Start anytime- cold hardy.
- Prairie Sun
- Indian Summer
- Goldilocks
Salvia : Start anytime- cold hardy.
- Blue Bedder
- Strara
Veronica Sightseeing: Start anytime- cold hardy.
Dianthus Neon: Start week of March 10
Marigold Gold Coins: Start week of March 31
Millet Purple Majesty: Start week of March 31
Gomphrena: Start week of March 31
Celosias: Start week of March 17, continue succession planting throughout season.
- Sylphid
- Pampas Plume
- Hi Z
- Amazon
- Cockscomb Lime, Red, Yellow, Rose, Burgandy, Orange
- Forest Fire
- Fresh Look Yellow
Sunflowers: Start week March 24, continue succession planting throughout season.
- Pro-Cut: Orange, Lemon Lite Lemon
- Sunbright
- Sunbeam
Tomatoes: Start week of March 17, continue succession planting throughout season.
Squash: Start Week of March April 8
Finally time to get started!