in

How to Prevent Blossom Drop — Tomatoes and Peppers

Tomato blossom1

Sharing is caring!

Tomatoes and peppers drop their blossoms when environmentally stressed. But when conditions are less extreme, a plant that has dropped its blossoms will flower again, set fruit, and be productive.

Temperatures too cold or too hot; weather too dry or too wet; soil too nutrient-rich or deficient are the most common reasons tomatoes and peppers drop their blossoms.

Best tips on How to Grow Tomatoes and How to Grow Peppers

Good Products for Growing Tomato Family Crops:

Tomato pepper blossom drop
Prevent tomato and pepper blossom drop by ensuring plants are not stressed.

Causes of tomato and pepper blossom drop

Night temperatures below 60°F (16°C). Cover plants with floating row covers or plastic tunnels until temperatures warm. Wait to set out plants until night temperatures are warmer.

Daytime temperatures above 85°F (29°C). Put shade cloth structures over plants to protect them from direct rising temperatures. Irrigate planting beds with cool water. In hot summer regions, time planting so that plants flower and set fruit before average daytime temperatures are too warm.

A sudden shift from hot spells to cool temperatures. If cool temperatures are forecast, protect plants with floating row covers or plastic tunnels.

Low soil moisture as a result of drought or lack of irrigation. Keep the soil evenly moist; avoid letting the soil go dry, and avoid overwatering to compensate for not watering. Work moisture-retentive aged compost into planting beds.

Too much soil moisture as a result of rain. If summer rain is frequent, plant in well-draining raised beds or grow plants on mounds. Spread plastic around plants so that excess water runs off into furrows.

Hot, dry wind. Plant or erect windbreaks to keep winds from reaching the crop. Plant a dense hedge upwind of the garden or erect a windbreak or fence.

Too much nitrogen in the soil. Excess nitrogen can cause rapid, succulent growth and disrupt a plant’s metabolism. Avoid high-nitrogen soil additives such as bloodmeal and fresh manures. Use low-nitrogen fertilizers such as weak compost tea or side-dress plants with aged compost, a balanced soil amendment.

Too little nitrogen, potassium, or phosphorus in the soil. Give plants an even fertilizer—not too much nitrogen, phosphorus, or potassium. Work aged compost into planting beds twice a year; the nutrients in aged compost are evenly balanced.

Tarnished plant bug. The tarnished plant bug feeds on vegetable flower stems. The tarnished plant bug is ¼ -inch long, oval, flat, and brownish. Control this bug by spraying with pyrethrum or dusting with sabadilla.

Verticillium and fusarium wilt. Fungal diseases leave plants stressed and fighting to survive; blossoms drop as the plant fights to overcome the disease. Prevention is better than cure when it comes to disease: make sure soil is well-drained; avoid overhead irrigation; space plants allowing for air circulation; eradicate weeds; remove and destroy infected plants; don’t plant members of the tomato and pepper family in the same spot two years in a row once disease hits.

Let plants set blossoms again

Tomato and peppers that suffer from environmental stress and drop their blossoms but do not succumb will commonly blossom again and set fruit once conditions improve. If plants experience early season or unexpected stress, give them optimal growing conditions as best you can and allow them to grow on. Many short-season or early-season tomatoes and tomatoes bred for hot summers are predisposed to resist early-season stress and blossom drop. Tomatoes that resist blossom drop include Big Early, Floramerica, Hot-set, New Yorker, Porter, Red Cherry, Tiny Tim, and Walter.

Growing tomato tips: How to Grow Tomatoes and How to Grow Peppers

Related articles:

Vegetable Garden Organic Weed Control

Vegetable Garden Organic Pest Control

Tomato articles at Harvest to Table:

How to Plant and Grow Tomatoes

How to Choose a Tomato for Your Garden

Heirloom and Hybrid Tomatoes

Tomato Seed Starting Tips

Growing Tomatoes in Containers

Growing Early Season Tomatoes for Great Taste

How to Prune Tomatoes

Grow Tomatoes on Stakes

Epsom Salt, Milk, and Organic Fertilizers for Tomatoes and Peppers

How to Prevent Blossom Drop – Tomatoes and Peppers

How to Harvest and Store Tomatoes

How to Ripen Tomatoes

Nine Ways to Cook and Serve Tomatoes

Tomato Harvest Ketchup Recipe

Garden Tomato Bruschetta

Tomato Sauce–Basic, Herbed, or Vegetables Added

Corn, Herb, and Tomato Relish

How to Make Tomato Juice Simply

Basil and Tomato Soup

Tomato Varieties Harvest Time

Tomato Flavor Explained

How to Home Can Tomatoes for Beginners

How to Sun Dry and Oven Dry Tomatoes

How to Freeze Ripe Tomatoes

Tomato Growing Problems Troubleshooting

How to Prevent Tomato Blossom Drop

How to Identify Early Blight, Late Blight, and Leaf Spot

Tomato Hornworm Organic Pest Control

Garden Planning Books at Amazon:

Written by Stephen Albert

Stephen Albert is a horticulturist, master gardener, and certified nurseryman who has taught at the University of California for more than 25 years. He holds graduate degrees from the University of California and the University of Iowa. His books include Vegetable Garden Grower’s Guide, Vegetable Garden Almanac & Planner, Tomato Grower’s Answer Book, and Kitchen Garden Grower’s Guide. His Vegetable Garden Grower’s Masterclass is available online. Harvesttotable.com has more than 10 million visitors each year.

How To Grow Tips

How To Grow Tomatoes

How To Grow Peppers

How To Grow Broccoli

How To Grow Carrots

How To Grow Beans

How To Grow Corn

How To Grow Peas

How To Grow Lettuce

How To Grow Cucumbers

How To Grow Zucchini and Summer Squash

How To Grow Onions

How To Grow Potatoes

Okra pods on plant 1

How to Harvest and Store Okra

Edame soybean harvest 1

Vegetable Harvest Times