Direct sowing means planting seeds straight into the garden bed where they will grow all season, skipping trays, lights, and transplanting altogether. The signal that matters most is not the date. It is soil temperature. Sow once the ground has warmed to the range your crop needs, and treat “weeks before your last frost” as the rough backup you use when you cannot measure. Get that one thing right and most of the rest takes care of itself.
What Vegetables You Can Direct Sow
Here is the whole answer in one place. Find your crop, check the soil temperature, and match it to the depth and spacing.
| Crop | Direct sow or start indoors | Min. soil temp | Sowing depth | Final spacing | Weeks vs. last frost |
|---|---|---|---|---|---|
| Peas | Direct sow only | 40°F | 1 to 1½ in | 2 to 3 in | 4 to 6 weeks before last frost |
| Spinach | Direct sow | 40°F | ½ in | 4 to 6 in | 4 to 6 weeks before last frost |
| Radish | Direct sow only | 40°F | ½ in | 2 in | 4 to 6 weeks before last frost |
| Arugula | Direct sow | 40°F | ¼ in | 4 in | 4 to 6 weeks before last frost |
| Kale | Either | 45°F | ½ in | 12 to 18 in | 4 to 6 weeks before last frost |
| Turnip | Direct sow only | 45°F | ½ in | 4 in | 4 to 6 weeks before last frost |
| Green onion | Direct sow | 45°F | ¼ in | 2 in | 4 to 6 weeks before last frost |
| Lettuce | Either | 45°F | ⅛ in, barely covered | 8 to 12 in (heads), 4 in (leaf) | 2 to 4 weeks before last frost |
| Carrot | Direct sow only | 45°F | ¼ in | 2 to 3 in | 2 to 4 weeks before last frost |
| Beet | Direct sow only | 45°F | ½ in | 3 to 4 in | 2 to 4 weeks before last frost |
| Parsnip | Direct sow only | 45°F | ½ in | 3 to 4 in | 2 to 4 weeks before last frost |
| Cilantro | Direct sow only | 50°F | ½ in | 4 to 6 in | 2 to 4 weeks before last frost |
| Swiss chard | Either | 50°F | ½ in | 6 to 12 in | 2 weeks before to 2 weeks after |
| Dill | Direct sow only | 50°F | ¼ in | 8 to 12 in | Around your last frost date |
| Nasturtium | Direct sow only | 55°F | ½ to 1 in | 10 to 12 in | Around your last frost date |
| Sunflower | Direct sow only | 55°F | 1 in | 12 in | Around your last frost date |
| Corn | Direct sow only | 60°F | 1 to 1½ in | 8 to 12 in | 1 to 2 weeks after last frost |
| Bush beans | Direct sow only | 60°F | 1 in | 4 to 6 in | 1 to 2 weeks after last frost |
| Pole beans | Direct sow only | 60°F | 1 in | 6 in | 1 to 2 weeks after last frost |
| Zinnia | Direct sow | 60°F | ¼ in | 8 to 12 in | 1 to 2 weeks after last frost |
| Cucumber | Direct sow preferred | 60°F | 1 in | 12 in | 2 weeks after last frost |
| Summer squash | Direct sow preferred | 60°F | 1 in | 24 to 36 in | 2 weeks after last frost |
| Zucchini | Direct sow preferred | 60°F | 1 in | 24 to 36 in | 2 weeks after last frost |
| Winter squash | Direct sow preferred | 60°F | 1 in | 36 in | 2 weeks after last frost |
| Pumpkin | Direct sow preferred | 60°F | 1 in | 36 to 48 in | 2 weeks after last frost |
| Melon | Direct sow preferred | 65°F | 1 in | 24 to 36 in | 2 to 3 weeks after last frost |
| Okra | Direct sow | 70°F | 1 in | 12 to 18 in | 3 to 4 weeks after last frost |
| Tomato | Start indoors | 70°F | ¼ in | 24 to 36 in | Only worth direct sowing in long-season zones |
| Pepper | Start indoors | 70°F | ¼ in | 18 in | Only worth direct sowing in long-season zones |
| Broccoli | Start indoors | 50°F | ½ in | 18 in | Direct sow works better for fall crops |
How to Read This Table
The soil temperature column is the gate. If your ground sits below that number, the seed will not sprout well no matter what the calendar says. It might rot instead. So when peas show 40°F and squash shows 60°F, that is a real twenty-degree gap, and it is why one goes in during a cold March and the other waits until late May.
The last column is a rough offset, not a planting date. Use it to see roughly where a crop falls in the season, then let the soil temperature make the actual call. For full planting dates by crop, our guide on when to plant vegetables covers the calendar side properly, and understanding your hardiness zone explains why two gardeners in the same state can be a month apart.
Your seed packet still matters. Varieties differ, and a bush bean bred for cold soil may beat the general number by a few degrees. Treat this table as your default and the packet as the fine print.
How to Direct Sow Seeds: The Quick Version
- Loosen the top six inches of soil, pull weeds, and rake it smooth.
- Check that soil temperature has held above your crop’s minimum for several days.
- Water the bed the day before so it is evenly damp, not muddy.
- Make a furrow, hole, or mound at the right depth for the seed.
- Space the seeds, cover them, and press the soil down gently.
- Water with a light spray so nothing floats out of place.
- Label the row, then keep the surface damp until seedlings appear.
That is the whole job. Everything below explains why each step matters and what goes wrong when you skip one.
Soil Temperature: The Real Signal to Sow
Why Soil Temperature Is the Real Trigger
A seed does not own a calendar. It responds to moisture, oxygen, and warmth, and warmth is the one most gardeners guess at.
Underground, the sequence goes like this. Water softens the seed coat, the embryo wakes up, and it starts burning through its stored energy to push out a root. In warm soil that takes a few days. In cold soil the process crawls, and while it crawls, soil fungi and bacteria are working on that same seed. Sow beans into 50°F soil and you are not planting early. You are feeding the soil.
I learned this the expensive way with bush beans. The forecast promised a warm week, so I sowed a full row on a Saturday afternoon. What I did not account for was the rainy stretch before it, which had left the soil under my beds colder than the air by a wide margin. Barely a dozen plants came up out of something like sixty seeds. The rest had simply rotted in place. Now I check the ground before I check the sky.
That is also why “six weeks before your last frost” can mislead you. It is a decent average, but it assumes an average spring. In a cold, wet April the soil runs behind schedule, and the calendar has no idea.
Soil Temperature Bands and What Grows in Each
Each crop sits in the band where it germinates most reliably, which usually runs a few degrees above the bare minimum in the table above.
| Soil temperature | What you can sow | Notes |
|---|---|---|
| 40 to 50°F | Peas, spinach, radish, arugula, kale, turnip | Germination is slow. Two to three weeks is normal |
| 50 to 60°F | Lettuce, carrot, beet, parsnip, chard, cilantro, dill | The sweet spot for most cool-season crops |
| 60 to 70°F | Beans, corn, cucumber, squash, zucchini, sunflower, zinnia | Fast, even germination. Usually five to ten days |
| 70°F and up | Melon, okra | Heat lovers. Below 70°F they sulk |
Notice how much overlap there is in the middle. Late spring, when soil sits around 60°F, is the one window where you can sow almost anything on this list. That is the busiest week in my garden every year.
How to Check Soil Temperature
A soil thermometer costs less than a packet of tomato seeds and removes all the guesswork. Push the probe two inches down for small seeds and four inches for beans, corn, and squash. Check in the morning, around 9 a.m., before the sun has heated the surface. Morning readings tell you the honest low.
Take a reading three or four days in a row. One warm afternoon proves nothing. What you want is a stable floor, meaning the morning number stays at or above your crop’s minimum without dipping.
Quick Tip No thermometer on hand? A meat thermometer from the kitchen works fine. Just rinse it before it goes back in the drawer.
When You Cannot Measure: Using Your Frost Date
No thermometer to hand? Fall back on the frost date. Cool-season crops go in two to six weeks before it, warm-season crops one to three weeks after. Those windows come from decades of local weather records, so they make reasonable defaults. Our planting timing guide breaks the dates down crop by crop, and frost dates explained covers how to find yours.
One caution worth keeping in mind. A last frost date marks the point where frost becomes unlikely, not impossible, so keep row cover or an old bedsheet within reach for the first few weeks after sowing.
[EMBED: Frost Date Calculator]
Sowing in Cold, Wet, or Snowy Soil
Light powdery snow is not a reason to stop. Sweep it aside, sow, cover the seeds with soil, then push the snow back over the top. As it melts it waters the bed and shields the seed from wind and birds.
Wet soil is the real problem. Working muddy ground destroys its structure, and compacted soil chokes off the oxygen seeds need.
Use the squeeze test. Grab a handful of soil and press it into a ball. If it holds together in a dense lump, wait. If it crumbles apart when you poke it, you are good to go. A week of dry weather usually makes the difference.
Direct Sowing vs. Starting Seeds Indoors
Both methods work. They just suit different crops.
| Direct sowing | Starting indoors | |
|---|---|---|
| Equipment | Seeds and a rake | Trays, lights, heat mat, potting mix |
| Cost | The price of the seed packet | $60 to $200 to set up |
| Root system | Grows undisturbed from day one | Confined, then disturbed at transplant |
| Transplant shock | None | Common, sets plants back a week or two |
| Hardening off | Not needed | Required, takes 7 to 10 days |
| Season length | Limited by outdoor soil temperature | Buys you 6 to 8 extra weeks |
| Daily attention | Water until established | Daily watering and light management |
| Main risk | Poor germination, pests, washout | Leggy seedlings, damping off |
Direct-sown plants grow up outdoors, which means they get real sunlight and real wind from the start. Wind flexing produces thicker stems, and thicker stems handle summer storms better than anything raised under a shop light.
The trade is season length. If a crop needs a hundred warm days and your area only gives you a hundred and twenty, direct sowing leaves no margin for a slow start. That is where starting seeds indoors earns its keep.
Crops That Must Be Direct Sown
Root crops top the list. Carrots, beets, parsnips, radishes, and turnips all form a taproot that starts growing within days. Move that seedling and you kink the root. What you harvest is forked, stubby, or twisted, and it happens even when you transplant carefully.
The squash family belongs here too. Cucumbers, squash, melons, and pumpkins send out fine feeder roots that snap easily. Growers do start them indoors, but they use large cells, keep the timeline under three weeks, and handle them like eggs. Direct sowing beats that outcome nine times out of ten.
Beans, peas, and corn round out the group. They germinate quickly and grow fast, so an indoor head start buys you very little.
I tested this with cucumbers one season because I wanted fruit earlier. I started a tray indoors, transplanted them out, then sowed a second batch straight into the bed about three weeks later. The direct-sown plants caught the transplants by early July and were out-producing them by the middle of the month. The transplants never really shook off the move. I have not started a cucumber indoors since.
Crops to Start Indoors Instead
Tomatoes, peppers, and eggplant need warm soil and a long run to maturity. In most of the country the soil does not hit 70°F until the season is already half gone. Direct sowing them means green fruit when frost arrives. In zones 9 and 10 it is a fine option. Our guide to growing tomatoes covers the indoor timeline in detail.
Broccoli, cabbage, and cauliflower are a middle case. For a spring crop, start them indoors so they mature before summer heat makes them bolt. For a fall crop, direct sowing in mid-summer works well, and it saves you from babying seedlings in July.
The Seven Steps in Detail
Step 1: Prepare the Seedbed
Seeds are small and weak. A clod of dirt that looks like nothing to you is a boulder to a carrot sprout.
Loosen the top six inches with a fork or broadfork, then work in an inch or two of finished compost. Compost matters more than fertilizer here, because it holds moisture near the surface where the seed sits. Save the feeding for later, once plants are growing. Our full guide on how to prepare soil for a vegetable garden covers the deeper prep work if you are starting a new bed.
Pull every weed you can see. Weed seedlings come up faster than most vegetables and they will win the race for light and water. Take out rocks and break up clay clumps as you go.
Then rake the surface flat and fine. For carrots and lettuce, rake it twice. Small seeds need soil that is almost crumbly.
Step 2: Check Your Seed Before You Sow
Old seed is one of the most common reasons a row comes up patchy, and gardeners almost always blame the weather instead.
Most vegetable seed keeps three to five years in a cool, dry spot. Onions, parsnips, and spinach fade faster, often within a year or two. Beans, cucumbers, and squash hold on the longest.
If a packet is more than two years old, test it. Roll ten seeds in a damp paper towel, seal it in a bag somewhere warm, and check after a week. Six sprouts means sow thicker. Two or three means buy new seed.
Seeds That Need Soaking or Scarifying
A few seeds have hard coats that slow water down. Peas, nasturtiums, beets, and chard all sprout faster after a soak.
Drop them in room-temperature water for four to eight hours, no longer. Beyond that they start to drown. Sow soaked seed the same day, because once it swells it cannot go back into storage.
Skip the soak for beans. Their seed coats split easily when they take on water fast, and a cracked bean rots instead of sprouting. If your soil is dry, water the furrow before you sow rather than soaking the seed.
Very hard coats like morning glory respond to scarifying. Rub the seed lightly on fine sandpaper until the surface dulls. You are scratching it, not sanding through it.
Step 3: Choose Your Sowing Method
| Method | Best for | How it works |
|---|---|---|
| Rows and furrows | Carrots, beets, radishes, lettuce, spinach, peas, beans | A straight shallow trench, seeds spaced along it |
| Hills | Squash, zucchini, pumpkins, melons, cucumbers | A low mound with four to six seeds in a circle |
| Broadcasting | Salad greens, arugula, cover crops, wildflowers | Seed scattered over an area, then raked in |
Rows and Furrows
Drag a stick or the corner of a hoe through the soil to make a furrow at your target depth. Drop seeds along it, cover, and firm.
Rows are worth using even in a raised bed, and especially if you are new. Weeds do not grow in straight lines, so anything sprouting between your rows is easy to identify and pull.
Hills
Despite the name, a hill is only a few inches high. Mound soil into a low circle about a foot across, then plant four to six seeds spaced evenly around the center.
Mounded soil warms faster and drains better, which is exactly what squash and melons want. Once true leaves appear, thin down to the two strongest plants per hill. Leaving all six sounds generous but produces crowded vines and more mildew.
Broadcasting
Scatter the seed across a prepared patch, then rake lightly to settle it in. This suits crops you harvest young and cut repeatedly, like arugula or mixed lettuce.
Broadcasting always looks uneven, and that is fine. You are growing a patch, not a row.
Step 4: Sow at the Right Depth
Depth is where most direct-sown seeds die, and the mistake almost always runs the same direction. Too deep.
A seed carries a fixed amount of stored energy. It has to reach light before that runs out. Bury a lettuce seed an inch down and you get one of two outcomes, neither good. Often it will not germinate at all, because lettuce needs light to trigger. When it does, it sends up a pale shoot, exhausts itself, and dies underground. You will never know it happened.
The 2x vs. 3x Rule, Settled
You will see both rules quoted, sometimes on the same page. Two times the seed’s width, or three times. Both come from real experience, and here is how to choose.
Use 2x in spring, in heavy or clay soil, and for any small seed. Cool soil holds moisture near the surface, so shallow is safe, and shallow means the sprout surfaces faster.
Use 3x in mid-summer sowings, in sandy soil, and for large seeds like beans and corn. Hot dry weather bakes the top half inch, and a seed sitting in that layer will not stay damp long enough.
When you are unsure, go shallower. A seed planted slightly too shallow may need extra watering. A seed planted too deep gets no second chance.
| Seed size | Examples | Depth |
|---|---|---|
| Tiny | Lettuce, celery, most herbs | ⅛ in, or press into the surface |
| Small | Carrot, arugula, radish, turnip, cilantro, dill | ¼ to ½ in |
| Medium | Beet, chard, spinach, nasturtium | ½ in |
| Large | Bean, pea, corn, squash, cucumber, sunflower | 1 to 1½ in |
A few seeds need light to germinate and should barely be covered at all. Lettuce is the one most gardeners get wrong. Press it into damp soil and leave it nearly exposed.
Common Mistake Planting everything at the same depth. If you are running a furrow across a bed with lettuce at one end and beans at the other, you need two different furrows.
Step 5: Cover, Firm, and Water In
After covering the seed, press the soil down with your palm or the flat back of a rake. This closes air pockets and puts soil grains in contact with the seed coat. Water moves into a seed by contact, not by magic, and a seed suspended in loose fluffy soil can stay dry in a damp bed.
Firm it, do not compact it. Gentle palm pressure is enough.
Then water with a fine spray. A watering can with a rose fitting, or the shower setting on a hose nozzle. A hard stream will float your seeds to the low end of the bed, and you will get a strange clumped row three weeks later and wonder what went wrong.
Preventing Soil Crusting
This is the failure almost nobody warns beginners about, and I only figured it out after two bad carrot years.
Heavy watering packs fine soil particles into a smooth layer on top. When that layer dries in sun or wind it sets like a thin shell. Underneath, your seeds have germinated. They just cannot break through it.
You can spot a crust by running a finger across the surface. If it feels like a dried skin instead of loose soil, that is it.
Three ways to prevent it. Water lightly and often instead of soaking once. Lay a floating row cover over the bed after sowing, which cuts evaporation and keeps the surface from setting. Or sprinkle a thin layer of fine compost or vermiculite over the row, because neither one crusts.
If a crust has already formed, break it gently with a fork tine or your fingertips, then water lightly. Do it the moment you notice, because seedlings pushing against a crust are burning through their last reserves.
Step 6: Label Your Rows
Label as you plant, not afterward. Every gardener who says they will remember ends up guessing.
Write the crop, the variety, and the date. The date is the useful part, because it tells you whether to be patient or to start worrying.
Pencil on a wooden stick beats marker on plastic. Marker fades by July.
Step 7: Protect the Seedbed
Birds pull sprouting seed, and squirrels dig for larger seeds like beans and corn. Row cover solves both. Lay it loosely over the bed and pin the edges down. Once seedlings are up and growing, take it off so air and pollinators can reach them.
Row cover also buffers a light frost, holds moisture, and stops heavy rain from beating the surface flat. For a spring sowing it is the single most useful thing you can put over a bed.
Wind is the quieter problem. It dries the surface faster than sun does. If your garden is exposed, a temporary windbreak on the upwind side helps more than extra watering.
Caring for Seedlings After They Sprout
Watering Through Germination
From sowing until sprouts appear, the top inch of soil must stay damp. Not soaked. Damp.
Check with your finger, two inches down beside the row. Clean and dusty means water now. Slightly crumbly and cool means you are fine. Muddy means back off, since waterlogged soil pushes out oxygen and seeds rot.
In warm dry weather that can mean watering twice a day. It feels like a lot of fussing for a bed that looks empty, and it is the stretch where most people relax too early. Once the seed coat splits, drying out kills the seedling outright.
After true leaves appear, shift to less frequent, deeper watering. That trains roots to grow down instead of sideways. Our guide on how often to water a vegetable garden covers the schedule once plants are established.
When and How to Thin
Thin when seedlings have their first set of true leaves, the ones that appear after the two smooth starter leaves. Do not wait longer. Crowded seedlings compete for light and water, and every day of crowding costs you.
Use scissors and snip the extras at soil level. Pulling them tears the roots of the neighbors you are keeping.
Thin to the spacing on your packet or in the table above. It always feels wasteful. Fifteen crowded carrots yield less than five properly spaced ones, and you can eat the thinnings from lettuce, beets, and chard. Our plant spacing calculator works out how many plants a bed will actually hold.
Mulching After Seedlings Establish
Hold off on mulch until plants are three or four inches tall with sturdy stems. Mulch laid too early blocks emerging sprouts and gives slugs cover right where you least want them.
When you do mulch, keep an inch or two clear around each stem. Straw, shredded leaves, or grass clippings all work. A two-inch layer cuts your watering dramatically and stops weeds before they start. Our guide to weeding and mulching goes further into material choice.
Direct Sowing in Raised Beds and Containers
Why Raised Beds Let You Sow Earlier
A raised bed warms faster than ground soil. Sun hits the sides as well as the top, and better drainage means less cold water sitting in the profile. In practice that runs about two to three weeks ahead of an in-ground bed nearby.
So every date in the master table shifts earlier for raised beds. How much earlier depends on bed height, material, and how much sun reaches the sides. Metal and dark wood warm fastest. If you are still planning the bed itself, our guide on how to build raised garden beds covers construction.
The trade-off is that raised beds dry out faster too. During germination you will water more often than you would in the ground.
I assumed for years that my raised beds and my in-ground row along the fence were close enough to treat the same. Then I started taking morning readings in both. The beds ran about ten days ahead, consistently, which meant I had been sowing the raised beds later than I needed to every single spring. Measure your own gap once and you will not have to guess again.
Direct Sowing in Containers
Containers work for almost anything on the shallow end of the table. Lettuce, radishes, arugula, spinach, bush beans, and short carrot varieties all do well. Our roundup of the best vegetables to grow in containers has more options.
Use potting mix, not garden soil. Garden soil compacts in a pot and drains badly.
Match the pot to the root. Radishes and lettuce are happy in six inches of depth. Carrots want eight to twelve unless you pick a stubby variety. Bush beans need at least ten.
Sow a little thicker than you would in a bed and thin hard afterward, since container soil dries unevenly and germination tends to be patchier. Containers also warm fastest of all, which makes them a good place to try an early sowing without risking a whole bed.
Why Your Direct-Sown Seeds Didn’t Come Up
Work down this list in order. The top causes are the most common.
| Cause | How to tell | What to do |
|---|---|---|
| Soil too cold | Seeds intact when you dig, no swelling | Wait for the right temperature and resow |
| Planted too deep | Pale shoot found below the surface | Resow at half the depth |
| Bed dried out | Seed split but shoot shriveled | Resow, water lightly twice daily |
| Soil crusted | Hard skin on top, sprouts trapped under it | Break the crust, water lightly, cover the bed |
| Washed away | Seedlings clumped at one end of the row | Resow, water with a fine spray only |
| Eaten | Disturbed soil, bird or paw marks | Resow under row cover |
| Old or dead seed | Nothing sprouts anywhere in the row | Test the packet, buy fresh if needed |
| Not enough time yet | Nothing visible, but it has been under ten days | Wait. Carrots and parsnips take up to three weeks |
When to Resow vs. When to Wait
Give it double the packet’s stated germination time before you decide. If the packet says seven to ten days, wait twenty.
Dig up two or three seeds and look. A firm, unchanged seed means it is still waiting on warmth, so leave it alone. A soft, mushy, or moldy seed means it rotted, and nothing more is coming.
Patchy emergence is different. If half the row came up, fill the gaps rather than starting over. The plants already growing have a head start you should not throw away.
Key Takeaway When something fails, check soil temperature and sowing depth first. Those two account for most direct sowing failures, and the weather usually gets blamed for both.
Keeping the Harvest Coming: Succession Sowing
One of the best things about direct sowing is that it costs almost nothing to do again. That makes it perfect for spreading out a harvest.
Sow a short row of lettuce, radishes, arugula, spinach, or bush beans every two to three weeks instead of one long row at once. Twelve radishes maturing on the same Tuesday is a problem. Twelve arriving over a month is dinner.
Keep going until roughly ten weeks before your first fall frost, then check the days-to-maturity on the packet and count backward. Our guide to the best vegetables to grow each season helps you decide what to slot in next.
I keep a half-used packet of radish seed in my garden bag for exactly this. Whenever a foot of bed opens up, in it goes. Radishes are ready in about a month, they ask for nothing, and an empty patch of soil in June always seems to grow weeds faster than anything I plant on purpose.
Common Mistakes to Avoid
- Sowing by date instead of soil temperature. The single most expensive habit on this list.
- Planting too deep. Especially with lettuce and carrots, which barely need covering.
- Watering with a hard stream. It moves seeds and packs the surface into a crust.
- Letting the bed dry out on day three. Germination has started even though nothing shows yet.
- Skipping thinning. Crowded roots stay small, and no amount of feeding fixes it.
- Working soil that is still muddy. You damage its structure for the whole season.
- Direct sowing tomatoes and peppers in a short season. They will not finish in time.
- Not labeling. You will weed out your own seedlings.
- Using seed more than two years old without testing. A five-minute test saves three weeks.
Direct Sowing FAQs
How long do direct-sown seeds take to germinate?
Most vegetables sprout in 5 to 14 days when soil is in their preferred range. Radishes can appear in three or four days. Carrots and parsnips often take two to three weeks and are the usual reason people assume a sowing failed. Cold soil roughly doubles every one of these numbers.
Can I direct sow tomatoes?
Only in long-season areas, roughly zone 9 and warmer. Tomatoes want soil near 70°F to germinate well, and sown from seed they need somewhere around 100 to 130 days to reach ripe fruit. In most of the country that math does not work, and you end up with green tomatoes when frost arrives.
Can you direct sow before the last frost?
Yes, for cool-season crops. Peas, spinach, radishes, kale, and arugula all handle soil in the 40s and tolerate light frost as seedlings. Warm-season crops should wait until after the frost date and until the soil reaches 60°F. For dates rather than soil temperatures, see when to plant your garden.
Do I really have to thin seedlings?
Yes, for anything you harvest as a root or a full head. Crowded carrots and beets stay small no matter how well you feed them. Cut-and-come-again greens are the exception, since crowding them is part of the plan.
Can I direct sow into a bed I already mulched?
Pull the mulch back to expose bare soil, sow into it, and leave that strip uncovered until seedlings are a few inches tall. Sowing into mulch means the sprout has to climb through a layer that blocks light and holds no root.
Is direct sowing cheaper than buying transplants?
Considerably. A packet of thirty bean seeds costs about the same as one bean transplant. The savings show up most on crops you plant in quantity, like beans, peas, carrots, and lettuce.
What is the easiest vegetable to direct sow?
Radishes. They germinate in a few days, tolerate cold soil, and are ready to eat in roughly a month. Bush beans are a close second and give beginners a fast, visible result. Our list of the easiest vegetables to grow covers more beginner picks.
Can I direct sow in summer for a fall harvest?
Yes, and it is underused. Sow carrots, beets, kale, spinach, and lettuce in late summer for fall picking. Summer soil is hot, so sow slightly deeper, water more often, and shade the row with a board or cloth until sprouts appear.
Bottom Line Direct sowing works when you sow into soil that is warm enough and shallow enough. Get a soil thermometer, check the ground before you plant, and resist the urge to bury the seed. Everything else on this page is detail around those two decisions.
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