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Cluster of ripe tomatoes ripening on the vine

Tomatoes

Solanum lycopersicum

beginner level

The crown jewel of the summer garden, tomatoes are versatile, nutritious, and incredibly rewarding to grow at home.

Photo: Unsplash via Unsplash

Quick Growing Facts

Sun Requirements
full sun
Water Needs
moderate
Time to Harvest
60-85 days
Hardiness Zones
3-10
Mature Size
3-6 feet tall
Soil Type
Well-draining, fertile

Soil & Bed Preparation

Loosen beds to at least 12 inches, blend in 2 to 3 inches of finished compost, and top-dress with a cup of balanced organic fertilizer per plant hole. Tomatoes prefer slightly acidic soil between pH 6.2 and 6.8, so include a handful of crushed eggshell or gypsum if blossom end rot has been an issue in past seasons.

Watering & Feeding

Aim for 1 to 1.5 inches of water per week delivered at the base of the plant. Deep soak twice weekly in early summer, then adjust to every other morning during extreme heat. Consistent moisture prevents cracking fruit and calcium uptake problems.

Feed transplanted tomatoes with a fish and seaweed drench one week after planting, then side-dress with composted poultry manure every three to four weeks. Switch to a potassium-forward fertilizer once the first fruit clusters set to encourage ripening instead of leafy growth.

Training & Maintenance

Install sturdy cages or a trellis immediately after transplanting. Remove the bottom 12 inches of foliage to improve airflow and train indeterminate vines to two leaders by pinching new suckers weekly. Keep tools sanitized to avoid spreading disease.

Harvest & Storage

Pick fruit just as it blushes for the juiciest flavor, allowing it to finish ripening on the counter out of direct sun. Store fully ripe tomatoes at room temperature and refrigerate only when you need to hold them an extra day. Green tomatoes can be wrapped in newsprint and kept in a cool closet to ripen slowly.

Planting Instructions

  • Start seeds indoors 6-8 weeks before last frost
  • Transplant when soil is consistently 60°F+
  • Space plants 24-36 inches apart
  • Plant deep, burying 2/3 of stem

Care Instructions

  • Water deeply and consistently
  • Mulch to retain moisture
  • Stake or cage for support
  • Prune suckers for larger fruit

Seasonal Growing Calendar

Late winter

  • Start seeds indoors under grow lights 6 to 8 weeks before your last frost date.
  • Sterilize seed trays and prepare a lightweight seed-starting mix.
  • Label varieties clearly so you can track performance later.

Early spring

  • Pot up seedlings once they develop two sets of true leaves.
  • Begin hardening off plants 10 to 14 days before transplant by setting them outside in filtered light.
  • Install drip lines or soaker hoses before plants go in the ground.

Late spring

  • Transplant when nighttime lows stay above 55 F and soil temperature reaches 60 F.
  • Mulch with straw or shredded leaves immediately after the first deep watering.
  • Apply floating row cover for the first two weeks if wind is persistent.

Mid summer

  • Prune to maintain airflow and tie vines to trellis clips as they grow.
  • Scout twice weekly for hornworms and knock them into soapy water.
  • Fertigate with compost tea when the second cluster of fruit sets.

Late season

  • Top vines four weeks before expected frost to redirect energy to ripening fruit.
  • Harvest mature green tomatoes ahead of the first freeze and ripen indoors.
  • Pull spent vines, chop them for the compost pile, and cover beds with a winter mulch or cover crop.

Companion Plants

Basil
Carrots
Marigolds
Nasturtiums

These plants grow well together and can provide mutual benefits like pest control, improved soil health, and efficient space usage.

Common Pests & Issues

Hornworms
Aphids
Early blight

Watch out for these common pests and diseases. Early detection and prevention are key to maintaining healthy plants.

Troubleshooting Guide

IssueHow to fix it
Yellowing leaves with dark spotsRemove infected foliage, increase airflow with additional pruning, and spray with a copper or bio-fungicide on an overcast evening.
Blossom end rot on the first fruit setKeep soil moisture consistent, add crushed eggshells or calcium nitrate to the root zone, and avoid high-nitrogen fertilizers.
Poor fruit set during heat wavesProvide afternoon shade cloth, mist plants at dusk to cool blossoms, and shake flower clusters in the morning to encourage pollination.

Recommended Varieties

Celebrity

Dependable slicer that tolerates variable weather and produces firm fruit with balanced acidity.

70 days

Sungold

Prolific orange cherry tomato with a candy-sweet flavor that keeps producing until frost.

57 days

Cherokee Purple

Heirloom beefsteak prized for smoky, complex flavor; thrives with sturdy trellising.

80 days

Succession Ideas

  • Stagger plantings of determinate and indeterminate varieties to extend harvest windows.
  • Start a second round of cherry tomato seedlings in midsummer for fall production.
  • Intercrop basil or lettuce between young tomatoes to maximize space before vines fill in.

🍽️ Culinary Uses

Fresh eating
Sauces
Salads
Canning

💪 Nutritional Benefits

High in Vitamin C
Rich in lycopene
Good source of potassium

Ready to Start Growing Tomatoes?

Check out our companion planting guides and learn about creating productive plant guilds for your garden.