Here’s when you need to plant your vegetable seeds.
Add a week for every zone colder and subtract a week for every zone warmer – “roughly” from the dates given) Starting from a USDA zone 4.
One thing I would note is that these dates are not carved in stone. You can (and should) modify them to suit your own garden and situation. If you have a warm garden -advance things a week or so but if you live in a frost pocket, then you should consider adding a bit of patience to your gardening repertoire.
These are best estimates and guidelines. Where there are both indoor and outdoor, you have a choice. Where there is only one, you generally use that system (if only indoor, you start seeds indoors). But to answer a question that’s sure to be raised, can you start seeds such as corn indoors to get an early jump on the season? The answer is that you can start “any” seed indoors if you want to do the work. 🙂 And take enough care with the transplanting.
The table below lists the recommended dates for sowing.
If the area is blank, it is not usually an Indoor or Fall Sowing vegetable
|Plant||Indoor||Spring Sow||Fall Sow|
|Beans||Sow every 10 days – from May 20th to end July|
|Beets||mid-April weekly until mid-July|
|Broccoli||Feb 15-Mar 15||Early May||harvest ongoing with side shoots|
|Brussels Sprout||Feb 15-Mar 15||Mid-May|
|Carrots||Mid May to mid July|
|Cauliflower||Early Feb 15 – Mar 15. late varieties outdoors||April 15 for early varieties||end May for late varieties|
|Corn||Mid-May every two weeks|
|Cucumber||April 20||June 10|
|Eggplant||April 10||June 10 in warm climates|
|Kale||Feb 15-Mar 15||Early July|
|Leek||Feb 15-Mar 15||Mid-April||Late August for following year|
|Lettuce||I||April 1 weekly to July 1||Aug 15|
|Melons||April 15||June 10|
|Onions||Feb 15||April 5-May 10||Sept 1 for overwintering|
|Peas||April 10||Aug 15|
|Peppers||March 15-April 1|
|Pumpkin||April 15||May 10- June 10|
|Radish||April 15 every 2 weeks until frost|
|Spinach||April 15||Aug 15-Sept 15|
|Swiss Chard||April 15||Aug 15|