Garden Notes July 2026

Written By Webmaster PMGA

In Zones 8a and 8b, July is the peak of summer heat. Daytime temperatures often soar above 90°F, making water management, shade, and pest control critical. Growth slows for some crops, while heat-tolerant vegetables and flowers thrive. This month is less about planting and more about maintenance, harvesting, and preparing for late-summer and fall crops.

🌞 VEGETABLE GARDEN – JULY

🌱 Direct Sow (Early July Only – Heat Tolerant)

  • Okra

  • Southern peas (black-eyed peas, crowder peas)

  • Sweet potatoes (only in cooler 8b microclimates early July)

  • Beans (succession planting in cooler zones)

Avoid sowing heat-sensitive crops like tomatoes or peppers now; high temperatures prevent germination.

🌿 Transplant

July is generally too hot for most new transplants. Only consider:

  • Late-season sweet potato slips (very early July, shaded)

  • Heat-tolerant herbs like basil, oregano, and thyme

🥬 Harvest & Maintenance

  • Harvest beans, cucumbers, squash, and zucchini every 1–2 days.

  • Pick peppers and tomatoes frequently to encourage production.

  • Mulch heavily to reduce soil temperature and retain moisture.

  • Remove bolted lettuce, spinach, and other cool-season crops.

🍅 Tomato & Pepper Care

  • Inspect for blossom drop caused by heat — normal, will resume when temperatures moderate.

  • Remove yellowing lower leaves.

  • Watch for fungal diseases like early blight; improve airflow.

  • Stake or cage plants securely as summer winds increase.

🍓 FRUIT CARE – JULY

  • Continue harvesting blueberries, blackberries, peaches, and plums.

  • Remove overripe or fallen fruit to prevent pests.

  • Maintain consistent watering — fruit size can suffer in drought stress.

  • Consider light shade cloth for young fruit trees in extremely hot 8a areas.

🌸 FLOWERS – JULY

Heat-Tolerant Annuals

  • Zinnias

  • Cosmos

  • Marigolds

  • Gomphrena

  • Sunflowers

Perennials Thriving in Heat

  • Echinacea purpurea

  • Rudbeckia hirta

  • Gaillardia pulchella

  • Asclepias tuberosa

  • Monarda didyma

Deadhead spent blooms to encourage reblooming and maintain garden color.

🐝 POLLINATOR SUPPORT

  • Continue flowering herbs like basil, oregano, and thyme.

  • Milkweed, coreopsis, and salvia remain important nectar sources.

  • Avoid spraying insecticides during bloom.

✂️ PRUNING & SUMMER TASKS

Roses

  • Deadhead spent blooms to prolong flowering.

  • Apply summer fertilizer if desired.

Shrubs

  • Lightly shape, avoid heavy pruning in extreme heat.

Tomatoes & Peppers

  • Remove lower leaves to prevent soil splash.

  • Monitor for pests and disease weekly.

🐛 PEST WATCH – JULY

Peak pest activity in high heat:

  • Tomato hornworms

  • Squash vine borers

  • Aphids

  • Spider mites (dry heat accelerates)

  • Flea beetles

Inspect plants frequently; treat early to avoid major damage.

💧 WATER & MULCH

  • Water deeply 2–3 times per week, more in sandy or dry soils.

  • Mulch 3 inches to keep soil cool and retain moisture.

  • Morning watering preferred to minimize fungal issues.

🌡️ WEATHER CONTINGENCIES

Extreme Heat (95–105°F)

  • Blossom drop is normal on tomatoes and peppers.

  • Provide temporary shade for heat-sensitive crops.

  • Increase irrigation frequency.

Heavy Rain or Storms

  • Ensure good drainage to prevent root rot.

  • Watch for fungal disease on humid days.

  • Reapply mulch if washed away.

🗓️ Late July Planning

  • Prepare for fall crops: start seeds indoors for August–September planting (broccoli, kale, cabbage, collards).

  • Monitor irrigation systems; repair or upgrade as needed.

  • Begin scouting for fall garden pests early to prevent outbreaks.

Webmaster PMGA https://pmgv.org
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Garden Notes June 2026