Harvest guide
When to Plant Beets (Spring and Fall Timing by Zone)
Plant beets 2 to 4 weeks before your last spring frost, as soon as the soil can be worked and reaches about 50 F. Sow a second crop in late summer for a fall harvest. Beets are direct-sown, never transplanted.
Days to maturity
50–70days
Ready when
Shoulders 1.5-3in across at soil line
The short answer
Plant beets in spring, 2 to 4 weeks before your average last frost, as soon as the soil can be worked and reaches about 50 F. The seedlings tolerate light frost, so you do not wait for warm weather. Sow a second crop in late summer for a fall harvest. Beets are always direct-sown, never transplanted.
Beets are a cool-season root crop, which means timing runs off the frost date and the soil thermometer, not the calendar. Get the seed in cool, workable soil and it sprouts and sizes up before summer heat turns the roots woody. This guide covers when to plant by zone, the soil temperature to wait for, and why a fall sowing is worth doing.
When to plant beets by zone
The target is the same everywhere: sow in cool soil, early enough that the roots size up before heat or hard freeze. Texas A&M Extension says plant beets as soon as the soil can be worked in spring. Beets are frost-hardy, so Illinois Extension treats them as one of the first crops to go in.
Colder zones thaw later, so they plant later. The windows below are starting points. Watch your own last-frost date and soil temperature, not the page of a seed catalog.
| Region / zone | Spring sowing | Fall sowing |
|---|---|---|
| Cold (zones 3–5) | Apr – May, once soil hits 50 F | Mid – late summer for a fall crop |
| Temperate (zones 6–7) | Mar – Apr, 2–4 weeks before last frost | Aug – Sept |
| Warm (zones 8–10) | Feb – Mar | Fall through winter |
The spring window is 2 to 4 weeks before your average last frost, with West Virginia Extension allowing up to 6 weeks before frost since the seedlings take a light freeze. Shift earlier as you go south and warmer, later as you go north and colder.
How to tell it is time to plant
Soil temperature is the real signal, not the date. Beet seeds need the ground at 40 F minimum to sprout, per Texas A&M Extension, and they germinate best around 50 to 75 F. Push a soil thermometer in at seed depth in the morning. If it reads 50 F and the soil crumbles instead of clumping, it is time.
Two cues tell you to go:
- The soil is workable. Squeeze a handful. If it crumbles apart, it is ready. If it stays in a wet ball, wait.
- The thermometer reads 50 F or warmer at seed depth. Below 40 F the seed just sits and can rot before it sprouts.
Frost is not the threat people think it is here. Beet seedlings handle a light frost without damage, which is why you can sow them weeks before tender crops like beans or tomatoes.
Pro tip
Each beet "seed" is actually a dried fruit holding two to four seeds, so a single one sprouts a little cluster. That is why thinning is not optional. Once seedlings are 2 inches tall, thin them to one strong plant every 3 to 4 inches. Snip the extras at soil level instead of pulling, so you do not disturb the keeper's roots. The thinnings are good in a salad.
Spring vs fall: plant twice
Beets reward a second sowing. They mature in 50 to 70 days (per the crop data behind our tools and matched to extension ranges), which is short enough to fit a spring crop and a fall crop in most of the country.
The spring crop goes in cool soil and finishes before midsummer heat. Hot weather can make beets woody and pale, so you want them sized up before July in hot regions. The fall crop dodges that heat entirely, and many growers find fall beets sweeter after a light frost.
For the fall crop, count backward. Sow roughly 8 to 10 weeks before your first fall frost so the roots get the full 50 to 70 days. University of Maryland Extension notes you can sow for fall up to about 6 weeks before the first frost if you are happy with smaller baby beets. West Virginia Extension points to August for most fall sowings.
To keep beets coming all season instead of all at once, sow a short row every 3 to 4 weeks, which Illinois Extension recommends for a continuous supply.
How to plant beet seed
You sow beets right where they will grow. They are a root crop and resent being moved, so skip the seed trays.
The order of work is simple:
- Sow 1/2 to 1 inch deep. NC State Extension and Texas A&M both put beet seed at about 1/2 inch deep in a shallow furrow.
- Space seeds about 1 inch apart in the row. You will thin later, so a little crowding at sowing is fine.
- Keep rows 12 inches apart. That gives each plant room and leaves space to hoe weeds.
- Water in and keep the surface damp until seedlings appear, usually in 1 to 2 weeks.
Once seedlings are up and a couple inches tall, thin to one plant every 3 to 4 inches. Crowded beets grow leaves and small roots.
Common mistake
Two mistakes cost you the crop. Planting into cold, wet soil below 40 F lets the seed rot before it sprouts, so wait for 50 F and crumbly soil even if the calendar says go. Starting beets indoors is the other one. Beets resent transplanting, and a checked root grows forked or stunted, so always direct sow. And do not skip thinning. A clump of beets from one unthinned seed ball stays small all season.
Get the spacing right before you sow
Spacing decides beet size. At 3 to 4 inches between plants, each root has room to swell to a full beet. Pack them tighter and you harvest marbles.
Plan the row before you open the seed packet. Our guide to how far apart to plant beets lays out the in-row and between-row numbers, and the same cool-soil timing drives the rest of the spring bed, like when to plant carrots and when to plant lettuce.
Once they are in the ground, the payoff is covered in when to harvest beets, which walks the signs that the roots are ready to pull.
Your next step
Plant beets in spring, 2 to 4 weeks before your last frost, once the soil can be worked and reads about 50 F. Sow 1/2 to 1 inch deep, thin to one plant every 3 to 4 inches, then sow again in late summer for a fall crop.
Ready to lay out the row? Read how far apart to plant beets and set your spacing at 3 to 4 inches so every root has room to size up.
Common questions
When should I plant beets?
Plant beets in spring, 2 to 4 weeks before your average last frost, as soon as the soil can be worked. Texas A&M Extension says sow as soon as soil is workable, and West Virginia Extension allows up to 6 weeks before the last frost. Beet seedlings shrug off light frost, so you do not have to wait for warm weather.
Can you plant beets in the fall?
Yes. Sow a fall crop in late summer so the roots size up before hard freezes, roughly 8 to 10 weeks before your first fall frost to allow the full 50 to 70 days to maturity. West Virginia Extension suggests sowing in August for fall beets. In warm southern areas, beets grow right through fall and winter.
What temperature is too cold to plant beets?
Beet seeds need a soil temperature of at least 40 F to sprout, per Texas A&M Extension, and germinate best around 50 to 75 F. Below 40 F the seed sits and may rot before it sprouts. Use a soil thermometer at seed depth rather than guessing off the air temperature.
Do you start beets indoors or direct sow?
Direct sow beets straight into the garden. They are a root crop and resent transplanting, so starting them indoors usually checks the root and gives misshapen beets. Sow seed 1/2 to 1 inch deep where the plants will grow, then thin the seedlings once they are a couple inches tall.
How late can I plant beets?
You can keep sowing every 3 to 4 weeks through the season for a steady supply, per Illinois Extension. The last useful sowing is about 8 to 10 weeks before your first fall frost so the roots finish. In zones with mild winters, beets planted in fall hold in the ground for months.
Sources
Agronomic claims in this guide are checked against these primary sources.
- Easy Gardening: Beets — Texas A&M AgriLife Extension
- Growing Beets in a Home Garden — University of Maryland Extension
- Growing Beets — University of Illinois Extension
- Beet Growing Guide — NC State Extension
Keep reading
When to Harvest Beets (Size + Signs)
Beets are ready about 50 to 70 days after sowing, when the root shoulder is roughly 1.5 to 3 inches across at the soil line. Here are the size cues, the lift-and-twist method, and how to store the roots and the greens.
Read →When to Plant Carrots (Spring and Fall Timing by Zone)
Sow carrot seeds 2 to 4 weeks before your last spring frost, once the soil warms past 40 to 45 F. For a fall crop, sow 10 to 12 weeks before the first fall frost. Carrots tolerate light frost.
Read →When to Plant Lettuce (Spring and Fall Timing by Zone)
Plant lettuce 2 to 4 weeks before your last spring frost, once the soil hits 40°F. It germinates best at 60 to 70°F and bolts in summer heat, so sow again 6 to 8 weeks before the first fall frost.
Read →When to Plant Zucchini (Frost + Soil Temp Timing)
Plant zucchini after your last spring frost, once the soil hits at least 60 F (ideally 65 to 70 F). Direct-sow seeds 1/2 to 1 inch deep, or set out transplants started 2 to 4 weeks earlier. Warm zones get a second fall crop.
Read →When to Plant Tomatoes (Frost + Soil Temp by Zone)
Set tomato transplants out 1 to 2 weeks after your last spring frost, once soil hits at least 60 F. Start seeds indoors 6 to 8 weeks before that frost date. Cold soil stalls them, so wait for warmth.
Read →When to Plant Swiss Chard (Spring and Fall Timing)
Plant swiss chard 2 to 4 weeks before your last spring frost, once the soil hits 40°F. Sow again 3 to 4 weeks before the first fall frost. Seeds go half an inch to an inch deep.
Read →