Plant cherry tomatoes in spring after the last frost, in a spot that gets at least six to eight hours of direct sun each day

Cherry tomatoes need warmth to thrive. Wait until nighttime temperatures stay above 50°F before planting outdoors — usually late April through May in most of the United States, though this varies by region. If you plant too early into cold soil, the seeds will rot and seedlings will sit dormant instead of growing.

Choose a location where the plants will receive direct sunlight for most of the day. Tomatoes grown in partial shade produce fewer fruits and ripen more slowly. If you are planting in containers, you can move them to follow the sun throughout the season, which is one advantage of container growing.

The soil should drain well — cherry tomatoes do not tolerate waterlogged roots. If your garden bed holds water after rain, either amend the soil with compost and perlite or switch to raised beds or containers. Container soil should be a mix labeled for vegetables or tomatoes, not garden soil from outdoors.

Key Takeaways

  • Plant cherry tomatoes outdoors only after the last frost date has passed and soil temperature reaches at least 60°F, which you can check with a soil thermometer.
  • Space plants 24 to 36 inches apart in garden beds, or use one plant per 5-gallon container, because crowding reduces air circulation and invites disease.
  • Bury the stem deeper than it was growing in the pot — tomatoes will root along the buried stem and develop a stronger root system.
  • Water deeply at the base of the plant once or twice weekly depending on heat and rainfall, aiming to keep soil consistently moist but not soggy.
  • Install a cage or stake at planting time rather than later, because pushing supports into the soil after planting damages roots.

Prepare the soil before planting day

Mix compost or aged manure into the top 8 to 10 inches of your garden bed at least a week before planting. Cherry tomatoes are not heavy feeders compared to beefsteak varieties, but they still benefit from organic matter that holds moisture and provides slow-release nutrients. If you are using containers, fill them with fresh potting mix the day before so the soil can settle.

Test your soil pH if you have not done so in the past few years. Tomatoes prefer soil between 6.0 and 6.8 on the pH scale. If your soil is too acidic (below 6.0), add lime; if it is too alkaline (above 7.0), add sulfur. Follow package directions for the amount based on your soil test results. These amendments work slowly, so explore them well before planting day.

Harden off seedlings before moving them outdoors

Hardening off means gradually exposing seedlings grown indoors to outdoor conditions so they do not wilt or sunburn when planted. Start this process 7 to 10 days before your planned planting date. Place seedlings in a sheltered outdoor spot with dappled shade for 2 to 3 hours on the first day, then gradually increase their time outside and sun exposure over the week.

By planting day, seedlings should spend the full day and night outdoors. If frost is forecast during this hardening-off period, bring the seedlings back inside. A sudden freeze will kill tender young plants, so do not rush this step even if you are eager to get them in the ground.

Dig holes and plant at the correct depth

Dig a hole slightly larger than the root ball of your seedling. The key step is to bury the stem deeper than it was growing in the pot — remove the lower leaves and plant the seedling so that only the top 2 to 3 leaves are above soil level. Tomato stems will sprout roots all along their buried length, creating a much stronger root system that can support the plant through the season and access water deeper in the soil.

Space plants 24 to 36 inches apart in garden beds. Cherry tomatoes are smaller and more compact than large slicing varieties, but they still need air circulation to prevent fungal diseases like early blight. In containers, use one plant per 5-gallon bucket or larger. Crowding leads to poor air flow, which traps moisture on leaves and invites disease.

Gently firm the soil around the base of each plant and water when ready after planting. Do not pack the soil hard — you want it snug enough to hold the plant upright, but loose enough for roots to push through easily.

Install support structures at planting time

Push a cage or stake into the soil right after planting, before the root system expands. Waiting until the plant is larger means you risk driving the support through roots and damaging them. Cherry tomatoes grow 3 to 4 feet tall on average, so use a cage at least 4 feet tall or a sturdy stake and twine for tying.

Determinate varieties (bush types that stop growing at a set height) need less support than indeterminate varieties (vining types that grow all season). Check your seed packet or plant label to see which type you have. Indeterminate cherry tomatoes especially benefit from sturdy cages or stakes because they will produce fruit continuously and become heavy as the season progresses.

Water consistently from planting through harvest

Water deeply at the base of the plant once or twice per week, depending on heat and rainfall. Aim to keep the soil consistently moist — not soggy, and not allowed to dry out completely between waterings. Inconsistent watering causes problems like blossom-end rot (a dark sunken spot on the bottom of the fruit) and fruit cracking.

Water in the early morning so foliage dries quickly. Wet leaves sitting in the sun invite fungal diseases. Use a soaker hose or drip line if possible, because these deliver water directly to the soil without wetting the leaves. If you must use overhead watering, do it early enough that leaves dry before evening.

Container plants dry out faster than garden beds, so check them daily during hot weather. Stick your finger 2 inches into the soil — if it feels dry at that depth, water until water drains from the bottom of the pot.

Mulch to retain moisture and regulate soil temperature

Spread 2 to 3 inches of mulch around the base of each plant, keeping it 2 to 3 inches away from the stem. Mulch slows water evaporation, keeps soil temperature more stable, and suppresses weeds that compete for nutrients. Use straw, shredded leaves, or wood chips — avoid fresh grass clippings, which can mat down and trap moisture against the stem.

Mulch also prevents soil from splashing onto lower leaves during rain or watering, which reduces the spread of soil-borne diseases. As the mulch breaks down over the season, it adds organic matter to the soil, which improves structure and water retention for next year's planting.

Frequently Asked Questions

Can I plant cherry tomatoes directly from seed in the garden?

Yes, but seeds take longer to produce fruit than transplants. Direct-sown seeds need soil temperature of at least 70°F to germinate reliably and will not sprout at all below 60°F. Plant seeds half an inch deep and thin seedlings to 24 to 36 inches apart once they have two true leaves. Most gardeners start seeds indoors 6 to 8 weeks before the last frost to get a head start on the season.

What if my area does not have a clear last frost date?

Check your local cooperative extension office website — they publish frost date maps for your county. You can also ask at a local garden center or nursery when they recommend planting tomatoes. If you are uncertain, wait until soil temperature reaches 60°F, which you can measure with an inexpensive soil thermometer pushed 4 inches into the ground.

Do cherry tomatoes need fertilizer at planting time?

If you mixed compost into the soil before planting, you do not need fertilizer right away. Once plants start flowering (usually 4 to 6 weeks after planting), side-dress with compost or use a balanced fertilizer every two to three weeks. Too much nitrogen early in the season produces lots of leaves but fewer flowers and fruits.

Can I plant cherry tomatoes in the same spot every year?

Avoid planting tomatoes in the same bed year after year, because soil-borne diseases build up over time. Rotate tomatoes to a different bed each season, or at minimum wait two to three years before replanting in the same spot. If you use containers, replace the potting mix each year rather than reusing it.

How deep should containers be for cherry tomatoes?

Use containers at least 12 inches deep and 12 inches wide — a 5-gallon bucket works well. Deeper is better because it gives roots more room to spread and holds more moisture, reducing how often you need to water. Containers smaller than 5 gallons dry out too quickly and do not provide enough root space for healthy growth.