Summer Fertilizing & Pest Control for Peppers and Tomatoes

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A No-Fuss Organic Guide for a Lush, Productive Garden
If you’re anything like me, by mid-summer your tomatoes and peppers are loaded with flowers, bursting with green fruit—and attracting every bug in a five-mile radius. These heavy-feeders need just the right kind of support to keep producing through the heat, and a solid organic routine makes all the difference.
This guide walks you through how to keep your pepper and tomato plants thriving through the summer with easy fertilizing rhythms, simple pest-prevention habits, and all-organic solutions that are safe for your soil and your family.
Let’s keep those plants happy and fruitful—without chemicals, overwhelm, or burnout.
🗓️ Weekly & Monthly Fertilizing Schedule
Tomatoes and peppers are both fruiting plants, which means they need a steady supply of nutrients—especially phosphorus, potassium, calcium, and magnesium—to support blooms and fruit set.
Time of Season | What to Use | Frequency | How to Apply |
---|---|---|---|
Early Summer (flowering) | Organic tomato fertilizer or compost tea | Every 7–10 days | Root zone drench or side-dress |
Mid Summer (fruit set) | Liquid fish emulsion + Epsom salts | Every 10 days | Water in around base |
Late Summer (heavy production) | Banana peel tea or kelp meal | Every 2–3 weeks | Drench soil or foliar spray |
✅ Great pick: I love this organic tomato-tone fertilizer and use a 2-gallon pump sprayer to apply compost tea without mess.
🐞 Organic Pest Control Strategies
The secret to keeping pests in check? Stay proactive, not reactive. Here’s how I stay on top of common summer garden bugs without spraying toxic stuff.
🐛 Most Common Pests for Peppers & Tomatoes
Pest | Signs | Organic Solution | Notes |
---|---|---|---|
Aphids | Curled, sticky leaves | Neem oil or insecticidal soap | Reapply weekly until gone |
Hornworms | Huge green caterpillars, chewed leaves | Handpick + spray with BT | Look for frass (poop) on leaves |
Whiteflies | Tiny clouds when disturbed | Yellow sticky traps + neem | Add companion plants like basil |
Spider Mites | Stippled leaves, fine webbing | Hose blast + neem or insecticidal soap | Likes hot, dry weather |
Stink Bugs | Deformed fruit, yellow speckles | Row covers + handpick | Use traps near garden edge |
🧪 Important: Never spray neem or soap during full sun. Always apply in early morning or evening to avoid leaf burn.
🌿 Companion Planting & Garden Habits That Help
- Basil and marigolds repel whiteflies and aphids
- Nasturtiums attract aphids away from peppers
- Borage attracts pollinators and deters hornworms
- Mulch heavily with straw or shredded leaves to retain moisture and reduce soil splash
- Stake or cage plants to improve airflow and reduce fungal problems
🔗 Related: Irrigation Tips for Sustainable Gardening
🔗 Also read: Recognizing Sunscald in Fruits and Vegetables
🧴 Easy Organic Sprays You Can Make at Home
Name | Ingredients | Use |
---|---|---|
Compost Tea | 1 part compost + 5 parts water, steeped 1–2 days | Root feed every 2 weeks |
Banana Peel Tea | 2 peels + 1 qt water, steeped 2–3 days | Add potassium during fruit set |
Garlic-Chili Spray | Blend 1 garlic head, 1 hot pepper + water. Strain. | Insect repellent (aphids, mites) |
Epsom Salt Solution | 1 tbsp per gallon water | Boost magnesium, prevent blossom-end rot |
🛒 Garden favorite: This mesh compost tea brewing bag saves time and cleanup.

🧑🌾 Weekly Summer Checklist for Peppers & Tomatoes
Task | Notes |
---|---|
✅ Check under leaves for pests | Early morning is best |
✅ Apply fertilizer or compost tea | Alternate root + foliar feeding |
✅ Water deeply, not daily | 2–3 times/week is better than light watering |
✅ Remove yellowing leaves | Helps with airflow and disease prevention |
✅ Harvest regularly | Encourages continued fruit production |
📌 Related: How to Harvest Tomatoes for Maximum Yield
💚 Final Thoughts: A Little Consistency Goes a Long Way
You don’t need a complicated regimen to grow healthy, productive tomato and pepper plants—you just need a rhythm. Organic gardening is about observing, responding, and trusting the process. A weekly check-in, a bucket of compost tea, and a few minutes with the pruning shears can do more than any synthetic spray ever could.
Remember: God gave us these good gifts. Let’s tend them gently and grow something beautiful.

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