Vegetables That Don’t Quit When It Gets Hot

July in Redmond means my lettuce has completely lost its mind. It’s bolting, it’s bitter, and it’s basically filing a restraining order against my salad spinner. Meanwhile I’m standing in the garden wondering why I didn’t plant more things that actually want to be warm.

Every year I relearn this lesson. Every year I plant too much cool-season stuff and not enough of what thrives when we actually get a few weeks of real heat. This summer I finally wrote it down so I’d stop making the same mistake in July of 2026.

What’s Actually Surviving Out There Right Now

Not everything collapses when temperatures climb into the 80s. A surprising number of vegetables genuinely perk up. You just have to plant them, which means starting in May or early June, or direct sowing in late spring. If you’re reading this in July and panicking, some of these you can still get in the ground right now.

Green Beans

Bush beans are basically solar-powered. They germinate fast, grow fast, produce fast, and don’t seem to notice the heat at all. I direct sow them into the ground with zero fuss. No starting indoors, no babying. Just push the seeds in about an inch deep and walk away. They’ll be producing in 50-55 days and they don’t care that it’s warm out. If anything, they prefer it.

Zucchini (and Summer Squash in General)

Okay, zucchini is almost too heat tolerant. My two daughters have started leaving zucchini on the neighbors’ doorsteps anonymously because we have so much. The plants are massive, they’re happy, and they’re absolutely refusing to stop producing. Which is either a blessing or a problem depending on your zucchini feelings.

Summer squash in general thrives when it’s warm. Plant one or two. Seriously, one or two. You’ve been warned.

Cucumbers

Cucumbers want heat. They sulk in cold soil and they’ll just sit there looking resentful if you plant them too early. But once temperatures are consistently warm, they take off. I grow mine vertically on a cattle panel trellis, about $25 at the farm supply store and it lasts forever, to save space and keep the fruit clean. One of the better investments I’ve made in this garden, which admittedly is not a high bar.

Tomatoes and Peppers

These are obvious, but they belong on the list. Tomatoes and peppers are why summer exists. They need warm soil and warm nights, which in zone 8b means they really don’t hit their stride until late July or August. Don’t rush them in spring and then wonder why they’re not doing anything. They’re waiting. Patiently. Unlike me.

Peppers especially love heat. Hot peppers even more so. I grew a few jalapeños this year mostly because the seeds were cheap, and they are thriving while everything around them is merely surviving.

Basil

Not a vegetable technically, but I’m counting it because it lives in my vegetable garden and it turns into a completely different plant in warm weather. Cold basil is sad basil. Warm basil is lush and ridiculous and makes everything taste better. Plant it next to your tomatoes, pick it constantly, and it’ll keep going all summer. Thyme flies when you’re having basil. (I’m sorry.)

Swiss Chard and Kale

These are the surprising ones. Most people think of them as cool-season crops, and they do prefer cooler temps, but established plants handle summer heat much better than lettuce or spinach. They get a little chewy in July, not gonna lie, but they don’t bolt and they stay productive. If you want greens through the summer without starting over, leave your chard in the ground and keep harvesting the outer leaves.

Edamame

I started growing edamame a couple years ago mostly because the seed packets were cheap at the garden center and I was curious. Turns out they’re basically green beans that you eat at a different stage, and they handle heat well. Direct sow after the last frost, thin to about 6 inches apart, and let them go. My daughters think they’re a snack and will pick them straight off the plant, which is fine by me because it means they’re actually eating vegetables without a debate.

What You Can Still Direct Sow Right Now in July

Green beans, edamame, and a second round of zucchini or cucumbers if your first planting is looking tired. You won’t get as long a harvest window, but you’ll get something. In Redmond we usually have warm dry weather through September, sometimes into October, so there’s still runway.

One thing I’d try: grab a soil thermometer if you don’t have one. Knowing your actual soil temp takes the guesswork out of when to direct sow. Cucumbers want soil above 60 degrees. Beans germinate fine at 55 but prefer 65. Right now in July, we’re well above both.

The Part I Get Wrong Every Single Year

I plant too little of the heat-loving stuff in spring because I’m scared of summer drought, and then July arrives and I’m standing in a garden full of bolted lettuce and two sad pepper plants wondering where I went wrong. This year I added two more tomato plants and a whole row of beans. Not even a little sorry about it.

Some vegetables really turn up the heat when summer does. Might as well plant them. Turnip for what you’re missing. (Okay that one was a stretch. I know.)

Photo by Chris Summer on Unsplash