March · Early spring
What to sow in March in St. Louis
24 crops are in their window this month in St. Louis — timed to your local frost dates.
Last frost≈ 22 Apr
First frost≈ 9 Oct
Frost-free daysFrom 22 Apr
March averages37°–58°F
Vegetables
17 in season
Broad Beans
Direct sow · pinch growing tips once pods set to deter aphids
Choy Sum
Direct sow · cut flowering stems young for the most tender bite
Daikon Radish
Direct sow · cold weather sweetens the roots after a light frost
Gai Lan (Chinese Broccoli)
Direct sow · harvest stems before the flower buds fully open
Ginger
Start indoors · start indoors in late winter; it needs a long season
Herbs
7 in season
Basil
Start indoors · loves heat, don't rush it outside before frost
Chives
Start indoors · perennial clumps, snip leaves for repeat harvests
Oregano
Start indoors · slow from seed, keep soil warm to germinate
Parsley
Start indoors · slow to sprout, soak seeds overnight first
Sage
Start indoors · slow grower, start early and harden off well
Fruit · nothing to sow this month