How to Grow Tomatoes That Actually Produce
Tomatoes are the most popular garden crop for a reason — a homegrown tomato tastes nothing like the store. A few simple practices around planting, support, and watering are what separate a few sad fruit from a season of abundance.
- Plant tomatoes deep — the buried stem grows extra roots.
- Full sun, at least six to eight hours, is essential for fruit.
- Water consistently and evenly to avoid cracked fruit and blossom-end rot.
- Support plants early so they grow up, not into a sprawling tangle.
Choose the right type
Tomatoes come in two main growth habits. Determinate, or bush, tomatoes grow to a fixed size and set most of their fruit at once, which suits small spaces and container growing. Indeterminate, or vining, tomatoes keep growing and producing all season and need tall support. For beginners, a cherry or small-fruited indeterminate like a cherry tomato is the most forgiving and rewarding choice.
Plant deep and give them space
Unlike most plants, tomatoes thrive when planted deeper than they sat in their pot. Bury the stem up to the first set of leaves, and the buried stem will send out roots, building a stronger plant. Space plants about two feet apart so air can circulate, which reduces disease. Choose a spot with full sun, because tomatoes need light to ripen properly.
Support them early
Put stakes or cages in place at planting time, before the roots spread and the plant gets heavy. A sturdy stake, a tomato cage, or a string trellis keeps the vines off the ground, where fruit rots and disease spreads. Tie the main stem loosely as it grows, and prune the small side shoots, or suckers, that form where branches meet the stem to keep indeterminate plants manageable.
Water evenly
Tomatoes are picky about moisture. Irregular watering — letting the soil dry out, then flooding it — causes fruit to crack and can lead to blossom-end rot, the dark sunken spot on the bottom of fruit. Water deeply and consistently, aiming for about an inch of water a week, and mulch around the base to keep the soil evenly moist.
Feed and harvest
Tomatoes are heavy feeders. A fertilizer higher in phosphorus and potassium than nitrogen encourages flowers and fruit rather than endless leafy growth, or simply side-dress with compost through the season. Harvest fruit when it's fully colored but still firm, and let late-season green tomatoes ripen indoors on a windowsill before the first frost.
Support and stake the right way
How you support tomatoes affects both health and harvest. A sturdy stake lets you tie the main stem upright and keep fruit off the soil, while a cage surrounds the plant and holds it without much tying. String trellising works well for indeterminate varieties, letting you prune and train the vine as it climbs. Whichever method you choose, set it in place at planting time so you never disturb the roots later.
Keep the foliage off the ground — that's where disease begins — and make sure the support can carry the weight of a loaded plant in wind and rain. A little extra sturdiness in June prevents a toppled, broken plant in August.
Handle common tomato problems
Tomatoes are rewarding but come with a few common complaints. Cracked fruit's usually from uneven watering, leaf curl often follows heat or over-pruning, and yellow lower leaves can mean blight or a nutrient shortage. Most problems improve with steadier watering, better airflow, and removing affected leaves promptly.
The best defense is a healthy plant — consistent moisture, full sun, and good spacing prevent far more trouble than any spray. When a problem does appear, act early and remove affected foliage.
Ripen the last of the season
When frost threatens, harvest any tomatoes that have begun to color and bring them indoors to finish ripening on a sunny windowsill. Fully green tomatoes can be used in recipes or left in a paper bag with a ripe banana to encourage ripening. This simple step rescues a final harvest before cold weather ends the season.
Frequently asked questions
Why are my tomato plants tall with few tomatoes?
Too much nitrogen encourages leafy growth at the expense of fruit. Switch to a fertilizer higher in phosphorus and potassium, and make sure the plants are getting full sun.
What causes blossom-end rot?
Blossom-end rot is usually caused by inconsistent watering, which prevents the plant from taking up calcium. Water evenly, mulch to retain moisture, and it usually resolves as the season steadies.
Do I need to prune tomato plants?
Indeterminate tomatoes benefit from removing suckers to keep them manageable and productive. Determinate bush tomatoes need little or no pruning.