Cherry tomatoes grow fastest in warm soil with direct sun and consistent water

Cherry tomatoes need at least six to eight hours of direct sunlight daily, soil that drains well, and temperatures between 70 and 85 degrees Fahrenheit. Plant them after your last frost date — the soil should feel warm to the touch, not cold. You can start from seed indoors six to eight weeks before that date, or buy seedlings from a nursery and transplant them directly into the garden or a pot.

The soil matters more than the pot or plot. Cherry tomatoes prefer slightly acidic soil with a pH between 6.0 and 6.8. Mix in compost or aged manure before planting to give the roots something to hold onto and feed from. If you are planting in containers, use potting soil, not garden soil — potting soil drains faster and won't compact.

Key Takeaways

  • Plant cherry tomato seedlings after your last frost date when soil temperature reaches at least 60 degrees Fahrenheit, ideally warmer.
  • Dig a hole deeper than the root ball and bury the stem up to the first true leaves, because tomatoes will grow roots along the buried stem.
  • Space plants 24 to 36 inches apart in the ground or use a container at least 5 gallons for each plant.
  • Water at the soil level, not the leaves, and keep the soil consistently moist but not waterlogged throughout the growing season.

Preparing the soil and choosing your planting location

Cherry tomatoes will tolerate partial shade, but they produce more fruit in full sun. Choose a spot that gets at least six hours of direct light, ideally eight or more. If you live in a very hot climate, afternoon shade can prevent the fruit from cracking or the plant from wilting during peak heat.

Work compost or well-rotted manure into the top six to eight inches of soil before planting. If your soil is heavy clay, add perlite or coarse sand to improve drainage — tomato roots rot in waterlogged soil. A soil test from your local extension office will tell you the pH and nutrient levels, but if you do not have one done, adding compost is almost always helpful.

For container growing, fill a pot at least 5 gallons in size with potting soil. A 5-gallon bucket works, as does a fabric grow bag. Avoid garden soil in containers because it compacts and holds too much water. If you are planting multiple cherry tomato plants in containers, space them so air can flow between them — this reduces disease.

Planting seedlings and seeds at the right depth

If you are starting from seed indoors, plant seeds about a quarter inch deep in seed-starting mix under grow lights or on a sunny windowsill. Keep the soil moist but not soggy. Seedlings will emerge in five to ten days and should be ready to transplant outdoors in six to eight weeks, when they have their first true leaves (the second set of leaves that appear, which look like actual tomato leaves).

When transplanting seedlings into the garden or a container, dig a hole slightly deeper than the root ball. Bury the stem up to the first true leaves — tomatoes will grow roots all along the buried stem, creating a stronger root system. Pinch off any leaves that would be below the soil line. Space plants 24 to 36 inches apart in the ground; in containers, one plant per 5-gallon pot is the standard.

If you are planting directly from seed outdoors, wait until soil temperature is at least 60 degrees Fahrenheit, ideally 70 or warmer. Plant seeds half an inch deep, two or three seeds per spot, and thin to the strongest seedling once they have true leaves. Direct seeding takes longer to produce fruit than transplanting seedlings, usually by three to four weeks.

Watering and mulching after planting

Water the soil deeply after planting, then keep it consistently moist — not soggy — throughout the growing season. Cherry tomatoes need about one to two inches of water per week, depending on heat and rainfall. Water at the base of the plant, not the leaves, to reduce disease. Early morning is the best time to water because it gives any accidental leaf wetness time to dry before the heat of the day.

Mulch around the base of the plant with two to three inches of straw, wood chips, or shredded leaves. Mulch keeps the soil temperature steady, reduces water loss, and prevents soil from splashing onto the leaves during rain or watering. Leave a small gap around the stem so mulch does not touch it directly — this prevents rot and keeps slugs from hiding there.

Supporting and pruning cherry tomato plants

Cherry tomatoes grow as vines and need support as they get taller. Install a cage, stake, or trellis at planting time rather than later, when you risk damaging roots. A straightforward stake and twine works, or use a tomato cage. As the plant grows, tie the main stem loosely to the support with soft ties or strips of cloth — do not use wire or anything that will cut into the stem.

Cherry tomatoes produce fruit on side branches, so light pruning can help. Pinch off the very bottom leaves once the plant is established and growing upward — this improves air flow and reduces disease. You can also remove suckers (shoots that grow between the main stem and branches) if the plant gets very dense, but cherry tomatoes are more forgiving about pruning than larger slicing tomatoes. Do not over-prune or you will remove the branches that bear fruit.

Fertilizing during the growing season

Cherry tomatoes are hungry plants. If you mixed compost into the soil before planting, you have given them a good start, but they will need more nutrients as they grow and produce fruit. Once the plant flowers, start fertilizing every two to three weeks with a balanced fertilizer or one slightly higher in phosphorus and potassium (the second and third numbers on the bag).

You can use a liquid fertilizer diluted in water, a granular fertilizer worked into the soil, or compost tea. Avoid high-nitrogen fertilizers — they produce lots of leaves but few flowers and fruit. If you see yellowing leaves on the lower plant, that is usually nitrogen deficiency and a sign to fertilize. If the plant looks healthy but produces few flowers, reduce nitrogen and increase phosphorus.

Protecting plants from pests and disease

Cherry tomatoes attract aphids, spider mites, and hornworms. Check the undersides of leaves weekly for small insects or sticky residue. A strong spray of water from the hose can knock off aphids and mites. For hornworms, pick them off by hand — they are large and straightforward to spot. If pests become severe, neem oil or insecticidal soap will control them without harming the plant.

Disease is more common in humid conditions or when leaves stay wet. Water at the soil level, not overhead, and space plants far enough apart for air to flow between them. Remove any leaves that touch the ground or show spots or yellowing. Early blight and late blight are the most common fungal diseases; if you see brown spots with concentric rings on lower leaves, remove those leaves when ready and consider a fungicide if the problem spreads.

Harvesting cherry tomatoes

Cherry tomatoes usually start producing fruit 60 to 85 days after transplanting, depending on variety and temperature. Pick them when they are fully colored but still slightly firm — they will continue to ripen off the vine if needed. Harvest regularly to encourage the plant to keep flowering and producing. A single cherry tomato plant can produce dozens of fruit over the season if you keep picking.

If frost is coming and you have green tomatoes still on the vine, pick them and place them in a paper bag with a ripe banana or apple — the ethylene gas will speed ripening indoors. Cherry tomatoes store best at room temperature, not in the refrigerator, which damages the flavor.

Frequently Asked Questions

Can I grow cherry tomatoes in a pot on a balcony or patio?

Yes. Use a container at least 5 gallons in size, fill it with potting soil, and place it where it gets six to eight hours of direct sun. Water more often than in-ground plants because containers dry out faster. A 5-gallon pot can support one cherry tomato plant for the entire season.

What is the difference between determinate and indeterminate cherry tomatoes?

Determinate varieties grow to a fixed size and produce most of their fruit at once, then stop. Indeterminate varieties keep growing and producing fruit until frost. For continuous harvests, choose indeterminate. Check the seed packet or plant label to see which type you have.

How often should I water cherry tomatoes?

Water when the top inch of soil feels dry to the touch, usually once or twice a week depending on heat and rainfall. Aim for one to two inches of water per week total. Consistent moisture is more important than frequent watering — let the soil dry slightly between waterings rather than keeping it soggy.

Do cherry tomatoes need fertilizer if I added compost before planting?

Compost gives them a good start, but they will need more nutrients once they start flowering and producing fruit. Fertilize every two to three weeks once flowers appear. A balanced fertilizer or one slightly higher in phosphorus and potassium works well.

Why are my cherry tomatoes cracking or splitting?

Cracking happens when the plant gets too much water too quickly, usually after a dry spell followed by heavy rain or watering. Keep soil moisture consistent rather than letting it dry out then soaking it. Mulch helps regulate moisture. Some varieties crack more easily than others, so choose crack-resistant types if this is a recurring problem.