What to Plant in the Fall: 20 Crops and Flowers That Still Give You a Second Harvest (Zones 4-7)

Fall isn't the end; it's the second act, with better weather. In zones 4-7, soil that baked all summer is cooling into exactly the range cool-season seeds want, and short days keep fall greens sweet and slow to bolt. Pick what fits your zone's countdown and you can eat from seed in three to eight weeks.

Leafy greens and brassicas

These are the crops that wilt and bolt in July, then do their best work from September to November.

1. Spinach ('Virofl1', or 'Spartan') — Why now: it germinates happily in 50°F soil and tastes better after a light frost. Soak seed overnight (spinach is sly about sprouting), then sow ½ inch deep, 1 inch apart, thin to 4 inches. You need about 40 days, so plant it no later than 6 weeks before first freeze.
2. Lettuce ('Black Seckoi', or 'Salanova' cut-and-come-again in a pot) — Why now: the heat wave is over, so it won't bolt. Sow ¼ inch deep, 2 inches apart, thin to 6-8 inches; baby leaves are cuttable in 3-4 weeks. Plant 6-7 weeks before first freeze.
3. Kale ('Winterbor' or 'Nero' lacinato) — Why now: a hard frost tightens the leaves and adds sugar. Set transplants 12 inches apart, or sow seed ½ inch deep in rows and thin to 10-12 inches. Fifty-five to seventy-five days, so plant it if you're 8+ weeks out.
4. Arugula ('Mazzotta') — Why now: it's the fastest salad on this list. Sow ¼ inch deep, 2 inches apart, thin to 4 inches; cut it at 3-4 weeks. It only asks for 4 weeks before your freeze.
5. Mustard greens ('Peachavore') — Why now: it germinates around 60°F soil (exactly your current temp) and gets peppery when nights cool. Sow ½ inch deep, 2 inches apart, thin to 6 inches; 45-55 days, so plant 7-8 weeks before freeze.
6. Pak choi ('Sue Grey') — Why now: it stays upright and compact, so it works in a 10-inch container where heads of cabbage would flop. Sow ½ inch deep, 2 inches apart, thin to 6 inches; 45-55 days.
7. Swiss chard ('Workaday' or 'Fordhook') — Why now: it gives a first cut at 30 days and then regrows until a hard freeze. Sow seed in ¼-inch clusters 4 inches apart; after the first frost, mulch them thick and keep cutting.

Roots

Cool soil is when roots do their best work — they fill in slowly, taste sweeter, and can literally stay in the ground while the season winds down.

1. Radish ('Cherry Belle' or 'French Breakfast') — Why now: it's the fastest thing you can still plant this month in every zone, 22-30 days from seed to root. Sow ½ inch deep, 1 inch apart, thin to 2 inches. Harvest as needed and re-sow every two weeks.
2. Carrot ('Paris Market') — Why now: fall carrots are smaller and sweeter than spring ones. Sow ¼ inch deep and thin to 2 inches. It needs 70-80 days, so plant only if your freeze is 10+ weeks out — that's zone 7 now, and zone 6 until midmonth; zones 4-5, swap this for radishes.
3. Turnip ('Hakurei') — Why now: it's two crops in one — white roots in 45-60 days plus edible tops on the way. Sow ½ inch deep, 1 inch apart, thin to 3 inches. A solid play in zone 5 and warmer right now.
4. Beet ('Boltki') — Why now: it doesn't bolt, sets roots in 55-70 days, and the greens are ready first at about 3 weeks. Sow ½ inch deep, 2 inches apart. Tip: if you never thin, they finish as mini beets — no thinning step at all.
5. Garlic (hardneck 'Music' or 'German Red') — Why now: it's the single best fall planting in the Midwest. Set cloves 2-3 inches deep and 6 inches apart, 3-4 weeks ahead of frozen ground (that means right now in zones 4-5, November in 6-7), and you'll be harvesting in July.
6. Scallions ('Radar') — Why now: 30-45 days to first cuts, then mulch 3 inches over the whole clump and keep snipping into spring — a bona fide second harvest off one plant. Sow ¼ inch deep, 1 inch apart, thin to 1.5-2 inches.
7. Daikon ('White Japan') — Why now: this big, mild white radish tastes best in late-summer cool soil. Sow ½ inch deep, 1 inch apart, thin to 4-6 inches; 60-80 days, so it's for zones 6-7 this month (zone 5, you had your shot in early August). Use a pot at least 12 inches deep for containers.

Flowers for the pollinators still flying

Bumblebee queens are looking for mates, hoverflies are still working, and in zone 7 the last honey bee workers are out. Feed them — and cutting flowers is what "second harvest" means this month.

1. Aster ('Alaska' type) — Why now: perennial asters are mid-bloom right now. Divide or plant crowns 10-12 inches apart and you get 3-5 more weeks of nectar, then a plant that keeps going into 2027.
2. Calendula ('Orange King') — Why now: if you've let yours flower past the first cut, it's already throwing seed. Rake the self-sown seed into the bed (or sow ¼ inch deep, 6 inches apart) and you'll have a full summer of color back in May.
3. Borage — Why now: it's one of the best late-season bee foods, and the laziest self-sower you'll meet. Sow ¼ inch deep, 6 inches apart, thin to 12 inches; in zones 5-7 it returns on its own.
4. Sweet alyssum — Why now: those tiny white flowers are a hoverfly larder, and hoverfly larvae eat your aphids while you watch. Sow ⅛ inch deep, 1 inch apart, thin to 3-4 inches; it blooms in about 45 days.
5. Zinnia ('Profusion') — Why now: if it's still blooming (these often are), the second harvest this week is a vase of cut flowers — snip the stems and pinch off spent heads, and the plants keep pushing until frost.
6. Sedum ('Autumn Joy') — Why now: it's still blooming, and it's one of the last stops for bumblebees. Plant plugs 12-18 inches apart; don't deadhead — the dried heads are for the birds.

Timing by zone

Everything above comes down to one number: the days left until your first hard freeze. Count backward from your zone's average date — zone 4 around mid-October, zone 5 late October to early November, zone 6 mid-November, zone 7 early to mid-December — and use this as your deadline chart:

In plain terms, by zone:

• Zone 4: You're in the last days — radish, arugula, and snipped lettuce if you have 3+ weeks out. Garlic is due now; mulch the beds and call it a season.
• Zone 5: You have 4-6 weeks — add spinach, chard, mustard, turnips, scallions. Garlic is right on schedule.
• Zone 6: 6-8 weeks — nearly the whole list still works; get daikon and beets in this week.
• Zone 7: 8-10+ weeks — all 20 are live options; you just have to pick.

One last note for pots: containers cool faster than beds, so in zones 4-5 stick to the fast four — radish, arugula, scallion, lettuce — and float burlap over them on cold nights. After the first frost, 3 inches of mulch buys chard, scallions, and garlic their overwintering act.

Quick wins to try this fall

• Sow one 10-inch pot with radish, arugula, and a few lettuce leaves — you'll be eating from seed in three weeks.
• Plant one garlic clove 2-3 inches deep, one more each week if you like — it's the cheapest second harvest you'll ever have.
• Snip the zinnias and sedum still blooming into a vase — dinner-table flowers that keep coming before the frost does.
• Cut your chard back to the crown and leave it — two more rounds before hard freeze, then mulch 3 inches and let it overwinter.
• Rake the calendula self-seeds into the bare beds and forget it; your 2027 flowers are already in the ground.