Here's a run-down of what you can plant now.
(Note: I'm following the moon cycles for planting this year. It's an ancient way of planting that believes that the moon influences all water on Earth, not just the seas. So you plant seeds at times when they will absorb the most water. This is like a level-up if you've been gardening for a while. If you are new to vegetable gardening, don't worry about moon cycles!)
It’s too early to plant seedlings unless you have serious protection! I'm talking two layers of row cover or hoops covered in plastic. Natureworks is selling onions, and even those should wait in their cells to be transplanted in late March or early April.
March 19th-March 24th 2020 are not great days for planting based on the moon, either indoors or outdoors. March 26th-29th will be favorable moon cycles, and they will be nice rainy weather for planting outdoors. March31st-April 2nd will also be favorable moon cycles.
What to start indoors mid March:
What to sow outdoors mid March:
What to start indoors late March:
What to sow outdoors late March:
Many favorite vegetables are best seeded in April. And brussels sprouts, I learned this year, are best seeded in May for a fall harvest. We hold off until April to seed things because the soil is still quite cold, despite the air growing warmer. So stay tuned!
Oh, and you can always grow microgreens or pea shoots indoors under lights or in your sunniest windowsill. Microgreens are usually marketed as such and come in larger packets. Thickly spread seed over soil, grow as normal, then cut the plants down when they’re a few inches tall and eat them! This is a great nutrient boost in the winter.