SproutSmart
SproutSmart Intelligent Garden Sowing

Zone 3b Planting Schedule

Last spring frost: May 19th
First fall frost: Sep 21st
Growing season: 125 days

Action Plan: May in Zone 3b

Expert Note

In Zone 3b, May soil warms quickly but nights can still dip; transplant only after several days of steady temps. Keep beds evenly moist, mulch lightly to hold heat, and scout weekly for flea beetles and cutworms on young seedlings.

Seed & Soil

Start the season strong with Potato and Carrot while soil is workable, then transplant Lettuce for quick harvests. Direct sow Spinach and Pea for reliable cool-season yields before summer heat ramps up.

The Harvest

Harvest Bluecrop and Blueray as berries ripen, picking every few days for best flavor. Continue with Honeycrisp and Golden Delicious only when fully colored and easily detach; remove any overripe fruit to reduce pests.

Planting Schedule

Add crops from the list below to build your planting schedule.
Crop Indoor Start Transplant / Direct Sow Harvest Window 🌿
Ananas D'Amerique A Chair Verte May 5th May 19th Aug 7th – Sep 21st
Apple Gourd May 5th May 19th Aug 27th – Sep 21st
Arancino May 5th May 19th Aug 7th – Sep 21st
Armenian May 5th May 19th Jul 23rd – Sep 21st
Atlantic Giant May 5th May 19th Sep 11th – Sep 21st
Baby Bear May 5th May 19th Aug 22nd – Sep 21st
Baby Boo May 5th May 19th Aug 22nd – Sep 21st
Beit Alpha May 5th May 19th Jul 8th – Sep 21st
Big Max May 5th May 19th Aug 22nd – Sep 21st
Birdhouse May 5th May 19th Sep 16th – Sep 21st
Black Satin Direct Sow May 5th Jul 4th – Sep 21st
Bottle Gourd May 5th May 19th Aug 12th – Sep 21st
Bush Slicer May 5th May 19th Jul 13th – Sep 21st
Canteen Gourd May 5th May 19th Sep 6th – Sep 21st
Carouby De Maussane Direct Sow May 5th Jul 4th – Sep 21st
Celebration Mar 10th May 5th Jul 24th – Sep 21st
Collective Farm Woman Apr 21st May 5th Jul 24th – Sep 21st
Common May 5th Jun 30th Aug 29th – Sep 21st
Copra Mar 10th May 5th Aug 13th – Sep 21st
Costata Romanesco May 5th May 19th Jul 8th – Sep 21st
Crane Melon May 5th May 19th Aug 7th – Sep 21st
Crenshaw May 5th May 19th Aug 12th – Sep 21st
Diva May 5th May 19th Jul 13th – Sep 21st
Eight Ball Hybrid May 5th May 19th Jul 3rd – Sep 21st
Encore Direct Sow May 5th Aug 3rd – Sep 21st
Galeux d'Eysines May 5th May 19th Aug 22nd – Sep 21st
Galia May 5th May 19th Aug 2nd – Sep 21st
Gold Rush May 5th May 19th Jul 3rd – Sep 21st
Hearts of Gold May 5th May 19th Aug 7th – Sep 21st
Italian Flat Leaf May 5th Jun 30th Sep 8th – Sep 21st
Jester May 5th May 19th Aug 12th – Sep 21st
Jubilee May 5th May 19th Aug 15th – Sep 21st
Kajari May 5th May 19th Jul 23rd – Sep 21st
Kojak Feb 24th May 5th Sep 2nd – Sep 21st
Lancelot Mar 10th May 5th Aug 23rd – Sep 21st
Lettuce Leaf Basil May 5th Jun 30th Aug 19th – Sep 21st
Lilly Crenshaw May 5th May 19th Aug 12th – Sep 21st
Long Island Cheese May 5th May 19th Aug 22nd – Sep 21st
Longissimo di Sicilia May 5th May 19th Aug 17th – Sep 21st
Minerva May 5th May 19th Jul 28th – Sep 21st
Monarch Mar 10th May 5th Aug 18th – Sep 21st
Muncher May 5th May 19th Jul 8th – Sep 21st
Navajo Melon May 5th May 19th Aug 12th – Sep 21st
Ngo Gai May 5th Jun 2nd Jul 17th – Sep 21st
Orange Flesh Honeydew May 5th May 19th Aug 2nd – Sep 21st
Pascal Mar 10th May 5th Aug 13th – Sep 21st
Pennsylvania Dutch Crookneck May 5th May 19th Aug 22nd – Sep 21st
Peppermint Stick Mar 10th May 5th Jul 29th – Sep 21st
Peter Pan May 5th May 19th Jul 3rd – Sep 21st
Piel de Sapo May 5th May 19th Aug 7th – Sep 21st
Pistou May 5th Jun 30th Aug 19th – Sep 21st
Planters Jumbo May 5th May 19th Aug 12th – Sep 21st
Polyvit May 5th Jun 30th Aug 14th – Sep 21st
Prescott Fond Blanc Apr 21st May 5th Jul 22nd – Sep 21st
Prospera May 5th Jun 30th Aug 29th – Sep 21st
Red Marble Apr 7th May 5th Aug 3rd – Sep 21st
Rich Sweetness 132 May 5th May 19th Aug 7th – Sep 21st
Rouge Vif d'Etampes May 5th May 19th Sep 6th – Sep 21st
Salt and Pepper May 5th May 19th Jul 8th – Sep 21st
Straight Eight May 5th May 19th Jul 14th – Sep 21st
Sugar Loaf May 5th May 19th Aug 17th – Sep 21st
Sultana May 5th Jun 30th Aug 14th – Sep 21st
Sunshine F1 May 5th May 19th Sep 1st – Sep 21st
Sweet Dumpling May 5th May 19th Aug 17th – Sep 21st
Sweet Mama May 5th May 19th Aug 22nd – Sep 21st
Table Queen May 5th May 19th Aug 17th – Sep 21st
Table Queen Acorn May 5th May 19th Aug 12th – Sep 21st
Tall Utah 52-70 Mar 10th May 5th Jul 29th – Sep 21st
Tondo di Nizza May 5th May 19th Jul 3rd – Sep 21st
Triamble May 5th May 19th Aug 22nd – Sep 21st
Victoria Mar 10th May 5th Jul 29th – Sep 21st
Wee-Be-Little May 5th May 19th Aug 22nd – Sep 21st
Westlandia Mar 10th May 5th Sep 2nd – Sep 21st
White Grano Mar 10th May 5th Aug 8th – Sep 21st
Winter Bloomsdale Direct Sow May 5th Jun 14th – Sep 21st
Winter Luxury May 5th Jun 2nd Sep 5th – Sep 21st
Ailsa Craig Direct Sow May 12th Aug 30th – Sep 21st
Alabaster Mar 10th May 12th Sep 9th – Sep 21st
American Flag Direct Sow May 12th Jul 26th – Sep 21st
Ancona Apr 21st May 12th Jul 11th – Sep 21st
Angebot Apr 21st May 12th Jul 1st – Sep 21st
Antonia Apr 21st May 12th Jul 1st – Sep 21st
Aspabroc Baby Broccoli Apr 21st May 12th Jul 1st – Sep 21st
Atlantis Baby Broccoli Apr 21st May 12th Jul 6th – Sep 21st
Balder Mar 10th May 12th Aug 10th – Sep 21st
Beijing White Mar 10th May 12th Jul 31st – Sep 21st
Belleville Sorrel Apr 14th May 12th Jun 26th – Sep 21st
Bianca Di Maggio Apr 7th May 12th Jul 26th – Sep 21st
Bibb Apr 21st May 12th Jul 6th – Sep 21st
Bilko Apr 21st May 12th Jul 21st – Sep 21st
Black Jack Direct Sow May 12th Jul 16th – Sep 21st
Black Seeded Simpson Direct Sow May 12th Jun 26th – Sep 21st
Bloomsdale Long Standing Apr 21st May 12th Jun 21st – Sep 21st
Blue Ballet May 12th May 26th Aug 29th – Sep 21st
Blue Lake FM1K Pole Bean Direct Sow May 12th Jul 11th – Sep 21st
Bonbon May 12th May 26th Aug 29th – Sep 21st
Boston Direct Sow May 12th Jul 6th – Sep 21st
Braddock Direct Sow May 12th Aug 30th – Sep 21st
Bright Lights Direct Sow May 12th Jul 6th – Sep 21st
Brilliant Mar 10th May 12th Aug 30th – Sep 21st