July is a critical month for garden maintenance. The summer heat and dry weather put real stress on plants, and your garden is growing fast — which means weeds, pests, and water needs are all ramping up right along with your harvest.

Watching for pests and keeping everything watered are the two biggest jobs in a Zone 5 garden in July. It’s also a good time to start thinking ahead to fall. Here’s my full July garden checklist, covering everything from watering and pest control to what to harvest and how to start prepping for the next season.

One quick note before you head out: because of the heat, protect yourself too. A sun hat, gardening gloves, and sunscreen are essential, and I try to get my garden chores done in the early morning before the worst of the heat sets in.

Watering a July Garden

July is one of the hottest months of the year, and not getting enough water can be the difference between a thriving garden and a stressed one.

• Aim for about 1 inch of water per week, including rainfall. If a week is especially hot and dry, your plants will need more.
• Container gardens dry out fast. Check them daily during hot stretches and keep the soil consistently moist — containers can go from damp to bone-dry in a single afternoon.
• Water deeply and less often rather than a little bit every day. Deep watering encourages roots to grow downward, which makes plants more resilient during heat waves.
• Morning watering is best. It gives plants time to absorb moisture before the heat of the day, and helps foliage dry out before evening, which reduces the risk of fungal disease.
• Investing in a timed garden sprinkler with a rain delay feature takes the guesswork out of consistent watering, especially if you travel during the summer.

For more watering tips, read this post on making watering your garden eco-friendly.

In addition to regular watering, add a layer of mulch around your plants. Mulch retains soil moisture, moderates soil temperature during heat waves, and cuts down on weed growth — all three of which make your July watering job easier.

Pest Control for Your July Garden

Garden pests hit their highest populations in July, right when your plants are putting on the most growth. Tomatoes and lettuce varieties tend to draw the most attention, so check those beds first.

Fungal diseases like powdery mildew and early blight are also common in warm, humid weather. To keep them in check, give plants good air circulation by spacing them properly and pruning as needed, and remove any diseased plant material promptly so it doesn’t spread.

Here’s what to watch for and how to handle it:

• Cucumber beetles and squash bugs: Remove eggs, use an organic spray, and handpick and drown adult bugs daily.
• Japanese beetles and slugs/snails: Hand-pick and destroy them — checking in the early morning or evening is most effective.
• Colorado potato beetles: Grow companion plants that naturally repel them, or introduce beneficial insects like ladybugs.
• Aphids: A strong blast of water from the hose can knock them off plants, and ladybugs and lacewings will happily clean up what’s left.
• Tomato hornworms: These are large but surprisingly hard to spot — look for chewed leaves and dark droppings, then hand-pick them off.

Fertilizing Vegetable Gardens in July

Flowers — especially annuals — benefit from a feeding in July. The extra nutrients help them push through the hottest part of the season and bounce back from the pest pressure that comes with it.

For vegetables, a light feeding can help heavy producers like tomatoes, peppers, and squash keep up with fruit production, especially if your soil isn’t naturally rich. Avoid heavy nitrogen fertilizers on fruiting plants this late in the season, since that tends to push leafy growth at the expense of fruit.

Weeding

Your vegetables are growing fast in July, and so are the weeds. Staying on top of weeding at least weekly keeps weeds from competing with your plants for water and nutrients during the hottest, most water-stressed part of the season.

It’s also worth taking note of which weeds keep showing up. That information is useful when you’re planning ahead for next season — some weeds are signals about soil conditions, and knowing what you’re dealing with now helps you get ahead of it next year.

If you have kids, weeding doesn’t have to be a chore they dread. I’ve got some ideas for turning it into a fun gardening activity that gets everyone involved.

What to Harvest in July {#harvest}

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• Lettuce and herbs: Start harvesting lettuce, and pick basil before it blooms for the sweetest flavor.
• Cherry tomatoes: Smaller varieties should be ready by the end of the month.
• Peppers: Keep an eye on these — they ripen quickly through July and into August.
• Beans: Harvest as soon as pods are ready. Beans left too long on the plant signal the plant to stop producing, so don’t fall behind.
• Strawberries: Continue harvesting and pinching back ever-bearing varieties to keep them producing.
• Cucumbers: Harvest in the morning and get them into a cool spot quickly — they wilt fast in summer heat.
• Onions and garlic: Most varieties are ready to harvest in July.

Prepare for Fall and Future Seasons

July is also a good time to start thinking ahead. As you clear spent crops, consider planting cover crops in any areas that will stay empty through fall — they improve soil structure, add organic matter, and help prevent erosion over winter.

Take notes now while it’s fresh: what’s thriving, what’s struggling, what pests showed up and when. That information is gold when you’re planning next year’s garden. Adding compost or other organic matter to beds now also gives it time to break down before next planting season.

And if you haven’t already, this is a good time to start thinking about what you’ll plant for a fall harvest. I’ve got a full breakdown in What to Plant in July for a Fall Harvest, and once the season really starts winding down, my 15 Fall Garden Tasks checklist picks up right where this one leaves off.

FAQ: July Garden Chores

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