What to plant this week in South Bend, IN
South Bend gardeners are in the final push of late summer as average first frost arrives October 17, so it is time to harvest your warm-season crops like zucchini, cucumbers, and sweet corn before night temps drop. With last year's early freeze lingering in memory, focus on finishing your edamame, bush beans, and watermelon now while keeping an eye out for the rapid cooling that can occur after late September.
The next 7 days
South Bend, INGrowing in South Bend right now
- Protect tender transplants like Lisianthus and Garden Verbena with row covers if a sudden cold front moves through before the hardening-off period ends in mid-October.
- South Bend's clay-heavy soil tends to hold moisture into autumn, so avoid overwatering your winter squash and pumpkins to prevent rotting in damp conditions.
- Utilize the remaining warm days to harvest garlic scapes or plan for spring planting, knowing that the ground will freeze solid by early November.
Sow this week
No direct sowing windows open this week.
Transplant this week
Nothing is due to go out this week.
Harvest soon
41 crops- Basil
- Borage
- Bush Bean
- Cantaloupe
- Celery
- Cleome (Spider Flower)
- Cosmos
- Cowpea (Black-Eyed Pea)
- Cucumber
- Dahlia
- Edamame
- Fennel
- Flour Corn
- French Marigold
- Garden Verbena
- Garlic
- Ghost Pepper (Bhut Jolokia)
- Gourd (Ornamental/Bottle)
- Honeydew Melon
- Lima Bean
- Lisianthus (Prairie Gentian)
- Loofah (Luffa)
- Malabar Spinach
- Nasturtium
- Okra
- Pole Bean
- Pumpkin
- Roselle (Cranberry Hibiscus)
- Scarlet Runner Bean
- Shiso (Japanese Basil)
- Summer Savory
- Sunflower
- Sweet Corn
- Sweet Potato
- Thai Basil
- Vinca (Madagascar Periwinkle)
- Watermelon
- Winter Squash
- Yellow Summer Squash
- Zinnia
- Zucchini
Seasonal tips
- Succession sow bush beans and sweet corn every two weeks for continuous harvests through summer.
- Pinch back the tops of zucchini and squash plants now to encourage more fruit development rather than just vines.
- Cut back dying foliage on basil and borage after heavy harvesting to promote a second, smaller flush of growth.
Pest & disease watch
- Spider mites are still active on stressed ornamentals like Cosmos and Zinnia during this dry, hot spell before the rains return in October.
- Watch for late-season powdery mildew on cucurbits (cucumbers, squash) as humidity fluctuations between day and night increase fungal pressure.
- Monitor for cutworms attacking young transplants of Celery and Fennel which may be getting ready to bolt or set seed.
Watering this week
Water deeply in the early morning to reduce evaporation while supporting heavy fruit production on melons and squash.
Pull any volunteer weeds immediately around your transplants like edamame and fennel before they compete for nutrients.
South Bend gardening questions
3When should I stop watering my winter squash and pumpkins in South Bend?
Stop heavy irrigation about two weeks before your expected first frost on October 17, allowing the soil to dry out slightly so the skins harden and rot doesn't set in during the damp autumn.
Can I still plant anything new now that my basil and beans are ready for harvest?
Since the average last frost is April 21 but we are approaching fall, focus on harvesting rather than starting seeds; however, you can sow a few quick-maturing carrots or radishes in late August for an early September crop if the soil isn't too cold.
How do I prepare my South Bend garden beds for next spring after all this summer growth?
After harvesting your zucchini and corn, chop down the plants rather than pulling them up to minimize root disturbance, then layer in compost or straw mulch to suppress weeds before the ground freezes hard.
Other cities in zone 6a
12See the full zone 6a guide → · Plan your South Bend garden in SproutGuide →