In August, a garden-fresh salad practically builds itself. Your heirloom tomatoes are still coming in heavy, cucumbers are at peak crunch, and peppers are ripening in every color. It's the best the summer garden has to offer — and it's all happening right now. But here's the move that separates good gardeners from great ones: while you're harvesting summer's bounty, you're also planting for fall. Get seeds in the ground this month and by September and October you'll be adding crisp lettuce, snappy radishes, sweet beets, fresh onions, and fragrant herbs to that same bowl. Two seasons, one garden, one incredible salad.
Here's what to plant in August for a productive fall harvest.
Lettuce and Salad Greens
Lettuce is one of the best August plantings you can make. It germinates quickly in warm soil, then matures as temperatures cool — which actually improves flavor. Loose-leaf varieties are ready in as little as 45 days, meaning a mid-August planting can be on your table by early October. Direct sow thickly and thin as you harvest. Come fall, it'll be the leafy base that ties your whole garden salad together.
Radishes
If you want the fastest return in the fall garden, radishes are it. Many varieties mature in just 25–30 days, which means you can succession plant every two weeks through August and keep harvesting into November. Thinly sliced into a salad alongside your still-ripening tomatoes and cucumbers, they add a peppery crunch that's hard to beat. They're also great for breaking up compacted soil and can be interplanted with slower crops.
Beets
Beets are a fall garden workhorse — you get two harvests in one: the roots and the greens. Sow in early to mid-August for roots that mature in 50–70 days. Beets actually taste sweeter after a light frost, so a late September or October harvest is ideal. Roasted and tossed into a salad with fresh lettuce and herbs, they turn a simple bowl into something special. Direct sow and thin to 3–4 inches apart.
Onions
August is the time to get onion sets or seeds in the ground for a fall harvest. Short-day and intermediate varieties do well when planted now, maturing as temperatures drop. Green onions (scallions) are especially fast — ready in as little as 30 days — and are a natural addition to any fall salad. Slice them thin over a bowl of lettuce, tomatoes, and cucumbers for that sharp, savory bite that pulls everything together.
Beans
Bush beans planted in early August can squeeze in one more harvest before frost. They mature in 50–60 days and don't need staking, making them one of the easiest late-season crops. Lightly blanched and added to a late-season salad, they bring substance and protein to the bowl. Avoid planting pole beans this late — they take too long and won't have time to produce before temperatures drop.
Peas
Peas are a cool-season crop that many gardeners only think of in spring — but a fall planting is just as rewarding. Count back 60–70 days from your first expected frost date and that's your target planting window. In most of the US, that puts August planting right on schedule. Fresh-shelled or snap peas straight from the vine are a sweet addition to any fall salad.
Herbs
Several herbs thrive when started in August. Cilantro bolts in summer heat but loves the cooler days of fall — an August planting will give you a lush, slow-bolting crop perfect for finishing a salad. Parsley is a biennial that establishes well in late summer and can overwinter in many zones. Dill planted now will mature before frost and pairs beautifully with cucumbers that are still coming off the vine.
Tips for August Planting Success
The biggest challenge with August planting isn't the crops — it's the heat. Soil can dry out fast and seedlings need consistent moisture to establish. A few things that help:
- Water deeply at planting and keep soil consistently moist until germination
- Mulch immediately after seedlings emerge to retain moisture and moderate soil temperature
- Use shade cloth for the first week or two if temperatures are extreme — lettuce especially appreciates it
- Direct sow where possible — transplants can struggle in August heat, while seeds germinate quickly in warm soil
The August Garden Salad
This is the magic of August in the garden — you're harvesting two seasons at once. Pull a handful of cherry tomatoes still warm from the vine. Slice a cucumber you picked this morning. Add a sweet pepper in red or yellow for color and crunch. Then, as the weeks roll on, start folding in what your fall planting delivers — crisp lettuce leaves, a few thinly sliced radishes, roasted beets, tender green onions, and a handful of fresh herbs to finish.
No recipe needed. Just a garden that's working in two seasons at once.
Don't wait — every week you delay is a week less growing time before frost. Pull out spent summer crops, amend with compost, and get seeds in the ground now. Browse our full selection of open-pollinated heirloom seeds selected for flavor and garden performance.