Tomato Gardening Guide

Tomato Information and Gardening Guide

Here is our 2024 comprehensive varieties list. This includes useful information about Disease Resistance, Days to Maturity, Hybrids/Heirlooms:

If you need further assistance about your tomato plants or have other gardening questions, please contact our

UC Master Gardeners Help Desk.

	Site Selection Choose a sunny spot in a convenient location where you can check it frequently ...
	Soil Improvement and Preparation Any type of soil can be improved with soil amendments...
	Time to Plant Plant when the soil is warm and the threat of frost is past...
	Planting and Support We all need a little love and support...
	Watering and Fertilizing Water the soil, not the foliage...
	Tomato Pruning When pruning your tomatoes, remember these main points: sun protection, yield, disease implications...
	Pests and Disorders Frequently tomatoes (and other vegetables) show symptoms similar to those caused by diseases or other pests...
	Harvesting and Storage Don't leave ripe fruit on the vines longer than necessary...

Tomato Info Links

Tomato Planting Guide

Don’t be tempted to plant tomatoes too early!

There is a danger of frost until late April. Remember, warm soil gives plants their best start in your garden.

Some Previous UC Master Gardeners of Napa County Tomato Workshops & References:

Integrated Pest Management (IPM)

Tomato References, Pests and Disorders


Invertebrates Aphids Armyworms Buffalo treehopper Cutworms Flea beetles Hornworms Leaffooted bug Leafminers Loopers Lygus bugs Nematodes Potato tuberworm Snails/slugs Stink bugs Thrips Tomato fruitworm Tomato pinworm Tomato russet mite Vegetable weevil Whiteflies Wireworms Vertebrates Birds, mammals, and reptiles	Diseases Black mold Curly top virus Damping off Early blight Fusarium wilt Late blight Phytophthora root rot Powdery mildew Tobacco mosaic virus Tomato spotted wilt virus Verticillium wilt White mold Environmental disorders Common environmental disorders Blossom end rot Catfacing Fruit cracks Sunscald Tomato leaf roll Weeds Weed management resources