What to plant this week in Cheyenne, WY
Cheyenne gardeners are in the thick of peak summer harvest as mid-summer heat settles into our high plains, making this week ideal for pulling mature crops like beefsteak tomatoes and corn. With the last frost date safely behind us since early May, your transplants have acclimated, but you must now focus on moisture retention against our typical dry conditions.
The next 7 days
Cheyenne, WYGrowing in Cheyenne right now
- Our semi-arid climate means soil dries out rapidly; water deeply in the early morning to cool roots before the intense Cheyenne afternoon sun.
- Tall crops like sunflowers and sweet corn often need staking or spacing adjustments here, as wind from the plains can easily topple them during storms.
- Apply a light layer of straw mulch immediately around squash and beans to suppress weeds and conserve precious soil moisture in our sandy loam.
- Monitor garlic and onions closely; while they are listed for harvest soon, ensure you don't pull until tops have fully yellowed to maximize bulb size.
Sow this week
6 crops- Bush Bean
- Cucumber
- French Marigold
- Nasturtium
- Yellow Summer Squash
- Zucchini
Transplant this week
Nothing is due to go out this week.
Harvest soon
55 crops- Banana Pepper
- Basil
- Beefsteak Tomato
- Beet
- Bell Pepper
- Borage
- Bush Bean
- Cabbage
- Cantaloupe
- Carrot
- Cauliflower
- Cayenne Pepper
- Cherry Tomato
- Cleome (Spider Flower)
- Collard Greens
- Cosmos
- Cowpea (Black-Eyed Pea)
- Cucumber
- Eggplant
- Fennel
- French Marigold
- Garden Geranium (Zonal)
- Garden Verbena
- Garlic
- Ground Cherry
- Jalapeño
- Lantana
- Lima Bean
- Nasturtium
- Onion
- Ornamental Sweet Potato Vine
- Parsley
- Parsnip
- Petunia
- Poblano Pepper
- Pole Bean
- Potato
- Roma Tomato
- Rutabaga
- Scallion (Bunching Onion)
- Scarlet Runner Bean
- Shishito Pepper
- Shiso (Japanese Basil)
- Snapdragon
- Summer Savory
- Sunflower
- Sweet Corn
- Swiss Chard
- Thai Basil
- Tomatillo
- Tomato
- Vinca (Madagascar Periwinkle)
- Yellow Summer Squash
- Zinnia
- Zucchini
Seasonal tips
- Succession sow bush beans and pole beans every two weeks for a continuous supply of fresh pods.
- Mulch around heavy feeders like tomatoes and peppers to retain moisture as summer heat sets in.
- Pinch back the tops of young squash plants to encourage bushy growth before they get too large.
Pest & disease watch
- Watch for aphid colonies on the undersides of zucchini leaves and basil stems as humidity spikes slightly during summer afternoons.
- Corn earworms can devastate sweet corn cobs quickly; check plants daily and hand-pick or use traps before larvae burrow in.
- Root maggots may target carrots and beets if the soil stays cool and damp near the creek banks, so inspect roots before harvest.
Watering this week
Water deeply in the morning to keep soil moist but avoid wetting foliage which invites disease on your leafy greens.
Harvest Banana Peppers and Cayenne Peppers now while they are still small for a spicier, more compact fruit.
Cheyenne gardening questions
3Can I still sow bush beans this week given our hot weather?
Yes, bush beans are listed for sowing now because they mature quickly enough to handle Cheyenne's late-summer heat. However, keep seeds shallow and water them immediately after planting to prevent drying out.
When is the best time to harvest my beefsteak tomatoes in this zone?
Harvest your beefsteak tomatoes now when they are fully red and slightly soft to the touch, as our first frost date arrives around October 15. Avoid leaving them on the vine too long, as summer insects can damage the fruit before ripening.
Do I need to water my zucchini daily during this heatwave?
While daily watering isn't strictly necessary if you have good mulch, deep watering every other day is safer in our low-humidity environment. Zucchini plants are heavy feeders and will struggle with stress if the soil dries out completely.
Other cities in zone 5b
8See the full zone 5b guide → · Plan your Cheyenne garden in SproutGuide →