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 or May depending on where you live. If you plant too early into cold soil, the seeds will rot and seedlings will sit dormant instead of growing. Check your local frost date by searching "[your city] last frost date" online.
Choose a location that receives direct sunlight for at least six to eight hours daily. Cherry tomatoes produce more fruit in full sun. If your yard is mostly shaded, a container on a sunny patio or deck works just as well as garden soil. Avoid planting in the same spot where tomatoes, peppers, or potatoes grew last year — this reduces disease risk.
Key Takeaways
- Plant cherry tomatoes outdoors only after your last spring frost date, when soil temperature reaches at least 60°F.
- Space plants 24 to 36 inches apart in garden beds, or use one plant per five-gallon container.
- Dig a hole deep enough to bury the stem up to the first true leaves, which encourages a stronger root system.
- Water deeply at the base of the plant every two to three days during the first two weeks, then adjust based on rainfall and soil moisture.
- Install a cage or stake at planting time to support the plant as it grows, rather than adding support later.
Prepare the soil or container before planting
If planting in garden soil, mix in compost or aged manure to a depth of eight to ten inches. Cherry tomatoes prefer soil that drains well but holds some moisture — not waterlogged clay or bone-dry sand. A straightforward test: squeeze a handful of moist soil. It should hold together loosely but crumble when you poke it. If it stays in a tight ball, add compost to improve drainage.
For container growing, use a pot at least five gallons in size with drainage holes in the bottom. Fill it with potting mix (not garden soil, which compacts in containers). Potting mix is lighter and drains faster, which container plants need. A five-gallon bucket, fabric pot, or ceramic planter all work — just drill or punch drainage holes if they don't have them.
Dig the hole and position the plant correctly
Dig a hole slightly deeper than the root ball of your seedling. Cherry tomato seedlings are often leggy — tall and thin — and this is actually an advantage. Bury the stem up to the first set of true leaves (the leaves that look like actual tomato leaves, not the smooth oval seed leaves). The buried stem will develop roots along its length, creating a stronger root system that anchors the plant and absorbs more water and nutrients.
Space plants 24 to 36 inches apart in garden beds. Closer spacing saves space but reduces air circulation, which can lead to fungal disease. If you are planting in containers, one plant per pot is the standard — two plants in a five-gallon container will compete for water and nutrients.
Gently firm the soil around the base of the plant so it stands upright and makes good contact with the soil. Do not pack it down hard — the soil should be firm enough to hold the plant in place, not compacted.
Install support at planting time
Push a cage or stake into the ground or container soil right after planting, before the roots spread. A tomato cage should be at least 48 inches tall for cherry tomatoes, which grow vigorously. A wooden stake or metal rod works too — tie the main stem loosely to the support with soft garden twine or cloth strips as the plant grows.
Installing support now prevents root damage later. If you wait until the plant is large and heavy, you risk breaking roots when you drive a stake into the ground. The plant will also grow around and through the cage more naturally if the cage is there from the start.
Water deeply and consistently for the first two weeks
Water at the base of the plant — not on the leaves — every two to three days for the first two weeks after planting. The goal is to keep the soil consistently moist but not waterlogged. Stick your finger one inch into the soil; if it feels dry, water. If it feels wet, wait another day.
Use a soaker hose or drip line if possible, which delivers water slowly to the root zone and keeps foliage dry. Wet leaves are more prone to fungal disease. If you water by hand, pour slowly at the base until water begins to drain from the bottom of the pot or runs away from the plant in the garden bed.
After the first two weeks, reduce watering frequency and let the soil dry slightly between waterings. Established plants need about one inch of water per week, either from rain or irrigation. During hot spells, you may need to water every other day. During cool, rainy weeks, you may not need to water at all.
Common mistakes to avoid when planting
Planting too early: Cold soil kills seeds and stresses seedlings. Wait until soil temperature reaches 60°F, which usually happens one to two weeks after your last frost date.
Planting in shade: Cherry tomatoes in partial shade produce fewer fruits and ripen more slowly. Six to eight hours of direct sun is the minimum for good production.
Burying the plant too shallow: If you plant at the same depth as the nursery pot, the root system stays shallow and the plant becomes stressed during dry spells. Bury the stem deeper to encourage roots along the buried portion.
Overwatering: Soggy soil leads to root rot and fungal disease. Let the top inch of soil dry out between waterings. Container plants dry faster than garden beds, so check them more often.
Skipping the support: Cherry tomatoes grow tall and heavy with fruit. Without a cage or stake, branches break under their own weight, and fruit touches the ground where it rots or gets eaten by pests.
What to do in the weeks after planting
Once the plant is established (usually three to four weeks after planting), pinch off the lowest leaves as the plant grows taller. This improves air circulation and reduces disease. When the plant reaches the top of its cage or stake, pinch off the growing tip to stop upward growth and redirect energy into fruit production.
Watch for pests like hornworms and spider mites, especially in warm weather. Hand-pick large pests or spray with neem oil if infestations develop. Mulch around the base of the plant with two to three inches of straw or wood chips to retain moisture and regulate soil temperature — keep mulch a few inches away from the stem to prevent rot.
Frequently Asked Questions
Can I plant cherry tomatoes directly from seed, or do I need to buy seedlings?
You can plant seeds directly into the garden, but seedlings are faster and more reliable for most home gardeners. Seeds take six to eight weeks to reach transplant size indoors before you can move them outside. Seedlings from a nursery are ready to plant when ready and will produce fruit sooner. If you start seeds indoors, sow them eight weeks before your last frost date under grow lights.
What if my soil is clay and doesn't drain well?
Mix in three to four inches of compost or aged manure before planting to improve drainage and add nutrients. If the problem is severe, consider raised beds filled with a mix of garden soil and compost, or grow cherry tomatoes in containers where you control the soil mix entirely.
How deep should the hole be for a seedling?
Dig the hole deep enough to bury the stem up to the first set of true leaves — usually four to six inches deep for a typical nursery seedling. The buried stem develops roots, which strengthens the plant. Do not bury the seed leaves themselves; they should remain above the soil surface.
Can I plant cherry tomatoes in a small pot on a windowsill?
A pot smaller than five gallons will dry out too quickly and limit root growth, making it hard to keep the plant hydrated during hot weather. A five-gallon container is the practical minimum. A sunny south-facing or west-facing windowsill works if it receives at least six hours of direct sun, but a patio or balcony in full sun is usually better.
What if I plant and then a frost is forecast?
If frost threatens within a week of planting, cover the plants with row covers or blankets at night and remove them during the day. If the plants are already in the ground and frost arrives, they will likely die. If you planted seedlings in containers, move them indoors or to a sheltered spot. It is safer to wait until frost danger has passed before planting outdoors.