Edible plant · Growing guide

Tomatillo

Physalis philadelphica · Nightshade family

Tomatillo is an upright edible plant grown for salsa and preservation. Use this guide to match its light, water, soil, space, seasonal care, and safety needs.

Botanical field illustration of Tomatillo
Identity-specific botanical field illustration
Reliable light
Full sun
Water pattern
Consistent
Mature size
48 × 36 in
Final spacing
30 in
Season
warm

01 · Light & site

Give it the light its growth depends on.

Full sun, with roughly 6 to 8 hours of useful light. Warm soil and frost-free conditions

02 · Water & soil

Keep roots supplied without trapping water.

Keep the active root zone evenly moist while preserving drainage.

Soil
Loose, organic garden soil
Drainage
Moist but drained
pH
Species-dependent, commonly mildly acidic to neutral

03 · Spacing & roots

Make room for the mature plant.

Space plants about 30 inches apart. Expect a mature plant around 48 inches tall by 36 inches wide.

A branching root system needs the stated depth plus aerated soil around the mature spread.

04 · Start

Begin with the method that protects establishment.

Start indoors or use a transplant where the season is short; move outside only after suitable warmth.

05 · Care

Support healthy growth through the season.

Cage or stake for sprawling branches. Put it in place early, before stems, canes, vines, or fruit load make access difficult.

Upkeep
Moderate
Feeding
Moderate
Watch for
Flea beetles, Hornworms, Leaf spot

06 · Flower or harvest

Harvest and maturity

75 to 100 days. Use the seed packet or plant label for cultivar-specific timing and harvest cues, then adjust for temperature, light, and the stage you intend to pick.

07 · Safety

Know the cautions before you place or use it.

  • Grow at least two compatible plants for reliable pollination.
  • Do not eat unripe fruit without confirming food-use guidance.

08 · Sources

Check the evidence behind the guide.

University of Minnesota Extension: Planting the vegetable gardenSeason, spacing, garden layout, and crop establishment frameworkOpen source ↗University of Minnesota Extension: Companion planting in home gardensEvidence-aware interplanting, succession, biodiversity, and trap-crop contextOpen source ↗USDA National Institute of Food and Agriculture: Cooperative ExtensionNational extension framework and local verification pathwayOpen source ↗

Guide record: July 20, 2026. Region, cultivar, regulations, and current product labels can change the right decision.

Working checklist

Tomatillo planting check