August.
Late summer · Zone 6b · Hunterdon County, NJ
“Dry August and warm doth harvest no harm.”
Old farmer’s saying
- Sun ↑
- 6:05
- Sun ↓
- 7:55
- Day
- 13h 50m
- High
- 85°
- Low
- 64°
- Moon
- Sturgeon Moon
Dog days
Full harvest and preservation peak. Fall garden goes in. Order spring bulbs. Sedum and Joe-Pye Weed carry the late-summer border.
General chores.
August is preservation season, and it's the month where the garden is loudest. Tomatoes come in by the bushel; zucchini won't quit; the canning kitchen runs three days a week. But the real trick of August is that this is also when the fall garden goes in — so you're harvesting the peak and setting up the second act at the same time.
“Pick squash and zucchini every day.”
One overlooked fruit signals the plant to stop making more. If it grows to soft-bat size, feed it to the chickens and keep moving. Daily picking keeps yields going through frost.
Keep the harvest coming
Keep weeding before they go to seed
Weeds that go to seed in August come back as 500 weeds in April. Even if the crop is finishing, keep the seed heads off.
Pull plants that have stopped producing
A tomato plant that's stopped setting fruit is now growing disease. Pull it, get it out of the garden, and put a fall crop in its spot — beans, lettuce, or a cover crop.
Setting up the fall garden
Pick fall-specific varieties, not generic packets
Fall performance is variety-dependent. Winterbor kale, Napoli or Bolero carrots, Bloomsdale Long-Standing spinach, Winter Density lettuce — these outperform generic packets in NJ 6B by weeks of harvest. See the Fall Garden Planning guide for the full list.
Install row cover hoops now, while beds are still open
Bending 9-gauge wire hoops or PVC into arches every 3 feet is easier before the lettuce is up. Get the frame in this month; drop the cover on the first frost warning in October.
Sow biennials outdoors
Hollyhocks and foxglove need to be started now to bloom next year. Direct sow in a nursery bed and transplant in September.
Order spring-flowering bulbs now
The best selection of tulip, daffodil, and allium varieties disappears by early September. Order now, plant in October and November.
Divide and move daylilies after bloom
August is the ideal window to lift and split daylilies. Divided clumps bloom stronger next year; leave them longer and they get root-bound.
Sow a fall cover crop in late August
Winter rye for beds you'll plant in May; oats for beds you want to plant early (they winter-kill and peel back easily). Crimson clover fixes nitrogen. One of the highest-leverage moves in the whole year.
Start perennials from seed for next year
Perennials sown now root in before frost and are ready to bloom their second year. Coneflower, black-eyed Susan, columbine, larkspur — cheap way to fill a border.
The pest that shows up in late August
Row-cover brassicas or hand-pick cabbage moth eggs
The cabbage moth (small white butterfly) peaks in late August through September. Yellow eggs on the undersides of brassica leaves become green caterpillars that strip a broccoli plant to ribs in a week. Row cover blocks the moth entirely; Bt spray handles caterpillars if you're already behind.
Watch for harlequin bugs on brassicas
Black-and-orange shield-shaped bugs that pierce leaves and suck sap. Hand-pick into soapy water — sprays don't touch them. Clean up all brassica debris in November so they can't overwinter.
The one thing to avoid
Don't prune trees and shrubs this late
Late-season pruning triggers new growth that won't harden off before frost. The new shoots die back and the wound stays open all winter. Wait until dormancy.
Plant & sow.
What can go in the ground now — and what still needs to wait. Start dates for indoor sowing, direct sowing, and transplanting, broken out by vegetables, herbs, and flowers.
“Broccoli ('Belstar'), cabbage ('January King'), lettuce ('Winter Density'), spinach ('Bloomsdale Long-Standing') for fall garden.”
Vegetables — direct sow outdoors (fall garden)
Carrots ('Napoli' or 'Bolero') — direct sow early August for storage-quality fall roots
Beets ('Detroit Dark Red'), turnips — direct sow through mid-August
Kale ('Winterbor'), spinach ('Winter Bloomsdale'), arugula, leaf lettuce — sow August through mid-September
Peas: mid-to-late August for fall crop (they need to bloom before hard frost)
Swiss chard, mustard greens: late August
Watermelon radish, daikon: sow by early August — they need 60 days
Cold-hardy specialty greens — direct sow late August
Mâche (corn salad), claytonia, tatsoi, mizuna, minutina, sylvetta arugula — the winter salad garden
Overwinter under row cover; harvest fresh from October through March
Orchard & berries.
The orchard and the berry patch keep their own calendar. Apples, pears, peaches, brambles, blueberries, and grapes — pruning, spraying, planting, and harvest, in the rhythm they ask for.
“Peaches — continue through mid-August; freeze, can, and dehydrate.”
Asian pears (Kosui, Chojuro) — harvest
European pears (Sunrise, Blake's Pride) — harvest 1–2 weeks early (do not ripen on tree)
Raspberries — primocane varieties (Caroline, Heritage) begin
Blueberries continue through August
Blackberries winding down
Early apples (Zestar, Lodi) begin
Prune water-sprouts and root-suckers on apples and pears
By the middle of the month, the sun sets at 7:55 — the day still stretched wide, but shortening a minute at a time.
Harvest.
What's in season this month, roughly in the order it arrives at the kitchen door. Some crops are past peak by the last week; others are just beginning.
- Tomatoes (peak)
- Peppers (peak)
- Eggplant
- Cucumbers
- Beans (keep sowing and harvesting)
- Sweet corn
- Zucchini and summer squash
- Cantaloupes (harvest when stem separates from fruit with gentle prodding)
- Watermelons
- Potatoes
- Onions
In bloom.
What's open in the beds and borders now — for the vase, for the pollinators, for the view from the porch.
The month’s palette
Echinacea (coneflower).
continuing
Black-eyed Susan
continuing strongly
Monarda (bee balm)
continuing
Veronica
continuing
Hardy hibiscus
continuing
Sedum (Autumn Joy)
beginning to show color
Joe-Pye Weed (Eupatorium)
August bloomer for back of border
Gaura
continuing white/pink cloud of blooms
Ligularia
yellow/orange in moist shady areas
The sturgeon moon lifts over the ridge — a full month has almost turned.
Can & preserve.
What to put by while it's here — canned, frozen, fermented, or dried. Pressure-can low-acid vegetables; water-bath the high-acid ones. Freezer and dehydrator for everything in between.
“Applesauce, apple butter, apple pie filling, apple juice (early apple varieties).”
Tomato sauce, crushed tomatoes, tomato paste, ketchup, salsa, bruschetta (peak season)
Garlic — clean and cure for long-term storage
Peach jam, frozen peaches, canned peach slices, peach butter
Pear preserves, pear butter, canned pears (European pears ready)
Pickled peppers, pepper jelly, hot sauce
Cucumber pickles (dill, bread and butter, relish)
Corn — freeze plain or can as corn relish; pressure can plain corn
Dehydrate: tomatoes (sun-dried), herbs, apple slices
For the wildlife.
Native plants in bloom in the beds and borders this month — and what they attract. From the Field Guide.
- AtNative · NJ
Butterfly Milkweed
Asclepias tuberosa
The orange one. A dry-meadow milkweed with clusters of small vivid blooms that hold a huge diversity of pollinators through the hot months.…
- Type
- Perennial flower
- Bloom
- Jun–Aug
- EpNative · NJ
Purple Coneflower
Echinacea purpurea
The classic pink-purple prairie daisy with a raised copper-brown center. Blooms for months in the height of summer and holds up in a vase or…
- Type
- Perennial flower
- Bloom
- Jun–Sep
- AiNative · NJ
Swamp Milkweed
Asclepias incarnata
The pink milkweed. A tidy, upright plant that stays where you plant it — no aggressive runners like Common Milkweed — with clusters of small…
- Type
- Perennial flower
- Bloom
- Jun–Aug
- MfNative · NJ
Wild Bergamot
Monarda fistulosa
The lavender bee balm — cousin of the garden Monarda but tougher, drier, and more disease-resistant. Whorled tufts of dusty-lavender bloom o…
- Type
- Perennial flower
- Bloom
- Jun–Aug
- SrNative · NJ
Wrinkleleaf Goldenrod
Solidago rugosa
The workhorse goldenrod. Arching plumes of tiny yellow flowers open on tall stems in late summer and feed more species of pollinator than al…
- Type
- Perennial flower
- Bloom
- Aug–Oct
- EfNative · NJ
Joe-Pye Weed
Eutrochium fistulosum
The gentle giant — 7 feet of dusky mauve flower clusters held above whorled leaves, humming with swallowtails for a solid month of late summ…
- Type
- Perennial flower
- Bloom
- Jul–Sep
- LcNative · NJ
Cardinal Flower
Lobelia cardinalis
The reddest red in the native palette. Vertical spikes of brilliant scarlet blossoms shaped precisely for a hummingbird's beak — plant it an…
- Type
- Perennial flower
- Bloom
- Jul–Sep
- PmNative · NJ
Mountain Mint (Short-toothed)
Pycnanthemum muticum
Silvery-green bracts flare around clusters of tiny pale-lavender flowers, making the whole plant look frosted from a distance. Xerces Societ…
- Type
- Perennial flower
- Bloom
- Jul–Sep
- LsNative · NJ
Dense Blazing Star
Liatris spicata
Purple bottlebrush spikes that bloom from the top down — unusual for a spike-flower — creating a moving line of color that a butterfly can l…
- Type
- Perennial flower
- Bloom
- Jul–Aug
- CoNative · NJ
Buttonbush
Cephalanthus occidentalis
The pom-pom shrub. Perfectly spherical white flower heads — like small sputniks or crystal ornaments — open all summer long, held above dark…
- Type
- Shrub
- Bloom
- Jun–Aug
Coming next
September
Watch for frost forecasts starting mid-to-late month
Add compost to top up garden soil; build organic matter for spring
Save seeds from favorite self-pollinating, non-hybrid flowers (marigolds, cosmos, sunflowers)
Look ahead →
Just past
July
Harvest regularly — letting produce rot on the vine reduces plant productivity
Water early morning or late evening to reduce evaporation
Fertilize tomatoes and peppers lightly as they load up with fruit
← Look back
More on the almanac.
- T
Transplanting week, and everything at once.
The greenhouse is empty, the beds are full, and I have exactly three days before rain. The cold-season crops go in.
- T
The seed order comes in.
A cold Saturday, a stack of catalogs, and the annual argument with myself about how many tomato varieties is too many.






