The best month to plant beets depends on where you live and which season you want to grow them in. Most gardeners get two great windows each year for when to plant beets. Spring and fall both work well since beets thrive in cool weather.
I grew beets in both seasons for five years and my fall crops turned out sweeter every single time. The roots that matured as temps dropped had a mild sweet flavor that I loved. My spring beets tasted good but often turned bitter when summer heat arrived too fast.
Last September I planted a row just eight weeks before our first frost date. Those beets were the best ones I ever grew by far. The cool nights seemed to pack extra sugar into the roots somehow.
Beets are cool-season crops that sprout best when soil temps sit between 55-75°F (13-24°C). Seeds will still pop up in cooler soil down to 40°F (4°C) but they take longer. Temps above 80°F (27°C) cause plants to bolt and send up flower stalks instead of growing fat roots.
Your beet planting time shifts based on your climate zone. Northern gardeners in zones 3-5 should plant from March through May for spring crops. Central zones 6-7 can start in February through April and again in August through September. Southern zones 8-11 do best planting from October through February when summer heat fades.
For planting beets spring timing right you need to count back from your last frost date. Sow seeds 30 days before that date since beets handle light frost just fine. The seedlings will push through soil as temps warm and roots will size up before summer heat hits hard.
Fall planting needs different math to get right. Count back 8-10 weeks from your first expected fall frost. This gives roots time to mature while days shorten and temps cool down. Those cooling conditions trigger beets to store more sugars which makes them taste amazing.
You can sow seeds every two weeks during your planting window to spread out harvests. This way you get fresh beets for months instead of all at once. Just stop planting when temps start climbing in late spring or dropping too low in fall.
Check with your local garden center for exact frost dates in your area. These dates can shift based on local hills and valleys. Good timing leads to sweet tender roots instead of tough bitter ones.
Read the full article: Growing Beets for Sweet Roots and Greens
