Sow now › USDA zone 4 › August
What to sow in August
in USDA zone 4
19 crops can go in this month. Typical last frost zone 4: about 1 May. First autumn frost about 1 October. This is the August page; jump to this month.
Sow in August
Arugula
Sow April to August
Bok Choy
Sow April to August
Broccoli
Sow April to August · 2 in the club sowing now
Cabbage
Sow April to August
Cauliflower
Sow April to August · 2 in the club sowing now
Cilantro
Sow April to August
Collard Greens
Sow April to August
Endive & Escarole
Sow April to August
Fennel
Sow April to August
Kale
Sow April to August · 3 in the club sowing now
Kohlrabi
Sow April to August
Lettuce
Sow April to August · 3 in the club sowing now
Mustard Greens
Sow April to August · 2 in the club sowing now
Napa Cabbage
Sow April to August
Pea
Sow April to August
Radish
Sow April to August · 1 in the club sowing now
Scallion
Sow April to August
Spinach
Sow April to August · 2 in the club sowing now
Turnip
Sow April to August · 3 in the club sowing now
Plant out in August
Sown earlier under cover, hardened off, and going in the ground once the last frost has passed.
Basil
Harvest July to September
Beetroot
Harvest June to September · 1 in the club sowing now
Brussels Sprouts
Harvest September to October
Carrot
Harvest June to September · 5 in the club sowing now
Cucumber
Harvest July to September · 1 in the club sowing now
Radicchio
Harvest August to October
Rutabaga
Harvest September to October
Snap Bean
Harvest July to September
Storage Potato
Harvest September to October
Sweet Potato
Harvest September to October
Swiss Chard
Harvest June to September
Ready to pick in August
Acorn Squash (Pumpkin)
Harvest August to November
Apple
Harvest August to March
Apricot
Harvest July to September
Arugula
Harvest May to September
Asian Pear
Harvest August to September
Basil
Harvest July to September
Beetroot
Harvest June to September · 1 in the club sowing now
Blackberry
Harvest June to August
Blue Potato
Harvest August to September
Blueberry (Northern Highbush)
Harvest June to August
Blueberry (Rabbiteye)
Harvest June to August
Bok Choy
Harvest June to October
Broccoli
Harvest June to October · 2 in the club sowing now
Bulb Onion
Harvest July to September
Butternut Squash (Pumpkin)
Harvest August to November
Cabbage
Harvest June to October
Cantaloupe
Harvest July to September
Carrot
Harvest June to September · 5 in the club sowing now
Cauliflower
Harvest June to October · 2 in the club sowing now
Celeriac
Harvest August to October
Celery
Harvest July to September
Cherry (Sour)
Harvest August to September
Cherry (Sweet)
Harvest July to September
Chives
Harvest June to September · 1 in the club sowing now
Cilantro
Harvest June to September
Collard Greens
Harvest June to October
Cranberry
Harvest June to August
Cucumber
Harvest July to September · 1 in the club sowing now
Dill
Harvest July to August
Edamame
Harvest August to September
Eggplant
Harvest July to September
Elderberry
Harvest June to August
Endive & Escarole
Harvest July to September
Fava Bean
Harvest June to August
Fennel
Harvest July to September
Fig
Harvest July to September
Fingerling Potato
Harvest August to September
Garlic
Harvest July to August
Giant Pumpkin (Squash)
Harvest August to November
Globe Artichoke
Harvest June to August
Gooseberry
Harvest June to August
Gourmet Potato
Harvest July to August
Grape (Table)
Harvest August to September
Grape (Wine)
Harvest August to September
Hot Chilli
Harvest July to October
Hubbard Squash (Pumpkin)
Harvest August to November
Jack-O'-Lantern Pumpkin (Squash)
Harvest August to November
Kale
Harvest June to October · 3 in the club sowing now
Kiwi (Fuzzy)
Harvest August to September
Kiwi (Hardy Kiwiberry)
Harvest August to September
Kohlrabi
Harvest June to September
Leek
Harvest August to October · 3 in the club sowing now
Lettuce
Harvest May to September · 3 in the club sowing now
Medium Chilli
Harvest June to September
Mild Chilli
Harvest June to September
Mulberry
Harvest August to September
Mustard Greens
Harvest June to September · 2 in the club sowing now
Napa Cabbage
Harvest July to October
Nectarine
Harvest July to September
Okra
Harvest July to September
Oregano
Harvest June to September
Ornamental Pumpkin (Squash)
Harvest August to November
Parsley
Harvest June to September
Parsnip
Harvest August to October · 1 in the club sowing now
Passionfruit
Harvest August to September
Pawpaw
Harvest August to September
Pea
Harvest June to October
Peach
Harvest July to September
Pear
Harvest August to February
Pie Pumpkin (Squash)
Harvest August to November
Plum (European)
Harvest July to September
Plum (Japanese)
Harvest July to September
Pomegranate
Harvest July to September
Quince
Harvest August to September
Radicchio
Harvest August to October
Radish
Harvest May to September · 1 in the club sowing now
Raspberry (Red)
Harvest June to August
Raspberry (Yellow/Gold)
Harvest June to August
Red Skin Potato
Harvest July to August
Rosemary
Harvest June to September
Russet Baking Potato
Harvest August to September
Sage
Harvest June to September
Scallion
Harvest June to October
Shallot
Harvest July to August
Snap Bean
Harvest July to September
Specialty Chilli
Harvest July to October
Spinach
Harvest June to October · 2 in the club sowing now
Strawberry
Harvest June to August · 1 in the club sowing now
Summer Squash (Pumpkin)
Harvest August to November
Super Hot Chilli
Harvest August to October
Sweet Bell Pepper
Harvest July to September
Sweet Corn
Harvest July to September
Swiss Chard
Harvest June to September
Thyme
Harvest June to September
Tomatillo
Harvest July to September
Turnip
Harvest June to October · 3 in the club sowing now
Watermelon
Harvest August to September
Yellow Potato
Harvest July to August
Zucchini (Courgette)
Harvest August to November
Coming up in September
Blackberry, Blueberry (Northern Highbush), Blueberry (Rabbiteye), Cranberry, Elderberry, Garlic, Gooseberry, Raspberry (Red), Raspberry (Yellow/Gold), Strawberry. See the September page.
A nudge on the first of the monthOne email a month with what to sow in USDA zone 4, from the newsletter. Nothing else.
Remind me monthlyYour ZIP code
Type your ZIP and you'll get the page for your zone, with the typical frost dates.
Questions people ask
What can I sow in August in USDA zone 4?
19 crops go in this month in USDA zone 4: Arugula, Bok Choy, Broccoli, Cabbage, Cauliflower, Cilantro, Collard Greens, Endive & Escarole and more.
When is the last frost in USDA zone 4?
Typically around 1 May, with the first autumn frost about 1 October. Treat those as averages and watch the forecast; a cold spring can push them back a fortnight.
What's ready to harvest in August in USDA zone 4?
Acorn Squash (Pumpkin), Apple, Apricot, Arugula, Asian Pear, Basil, Beetroot, Blackberry and more.
Plan the plot, track every sowing, cook the harvest
Sowing reminders and harvest forecasts for your own frost dates, the Seed Tin, Scan Centre for any label or packet, and the Potty Mouth Garden Club. Free to start.
Tony C Smith
Allotment keeper in the North East of England, the voice behind the Tony C Smith YouTube channel, and the gardener who built GrowMore CookMore. Club numbers on this page update as members log their plots. Last updated 4 September 2026.