Roger Culos / CC BY-SA 3.0 · Source
Tomatillo
Physalis philadelphica
Overview
The tangy, citrusy fruit inside a papery husk that is the essential ingredient in Mexican green salsa (salsa verde). Tomatillos are related to tomatoes but have a distinctly sharp, bright flavor that is completely their own. They are easier to grow than tomatoes, less susceptible to disease, and incredibly productive — but they need at least two plants for cross-pollination.
Growing Conditions
How to Grow Tomatillo
Tomatillo (Physalis philadelphica) is a forb/herb that grows to about 3 feet tall and 2 feet wide.
To grow tomatillo, give it full sun. It is hardy across USDA hardiness zones 4–11. Plant it in well-drained, moderately fertile, warm soil, at a slightly acidic pH of 5.5–7. It does best with even, moderate watering.
Exact sowing, transplanting, and harvest months shift by climate zone — the planting calendar below lays them out for cool through hot regions. Its flowers appear from June through October, offering high value to pollinators. Let a few flowers go by unpicked; the bees will thank you, and so will next season.
Companion Planting & Soil
Tomatillo grows well alongside basil, parsley, carrot, marigold, and nasturtium — but keep it clear of fennel, dill, and walnut.
Good Companions
Avoid Planting Near
Planting Calendar
When to sow, transplant, and harvest by growing zone.
| Zone | Action | Months | Notes |
|---|---|---|---|
| Cold (1-2) | Start Indoors | Mar — Apr | Start indoors 6-8 weeks before last frost; needs 2 plants for pollination |
| Cold (1-2) | Transplant | Jun — Jun | Transplant after all frost danger; plant 2+ for cross-pollination |
| Cold (1-2) | Harvest | Aug — Sep | Harvest when husk splits and fruit fills it; green or purple |
| Cool (3-4) | Start Indoors | Feb — Mar | Start indoors 6-8 weeks before transplant |
| Cool (3-4) | Transplant | May — Jun | Transplant after last frost; stake or cage plants |
| Cool (3-4) | Harvest | Jul — Sep | Harvest when husks split open; fruit should be firm |
| Moderate (5-7) | Transplant | Apr — May | Transplant when nighttime temps stay above 50°F |
| Moderate (5-7) | Harvest | Jul — Oct | Harvest when husks split; 75-100 days from transplant |
| Warm (8-9) | Direct Sow | Mar — Apr | Direct sow or transplant in spring; self-sows readily |
| Warm (8-9) | Harvest | Jun — Sep | Harvest when husks are papery and split |
| Hot (10+) | Direct Sow | Feb — Mar | Direct sow in early spring |
| Hot (10+) | Harvest | May — Jul | Harvest before extreme heat |
Uses
In the Kitchen
In the kitchen, tomatillo turns up in more than one form: essential for salsa verde and green enchilada sauce; roasted with peppers for smoky salsas; added to soups, stews, and pozole.
Medicinal & Folk Use
In herbal and folk tradition, it has been valued in several ways: rich in withanolides with anti-inflammatory properties; good source of vitamins C and K; contains niacin and potassium. These are traditional uses, not medical advice.
Beyond the Garden
Tomatillo earns its keep past the plate, too: easier to grow and more disease-resistant than tomatoes; self-seeding annual that returns in mild climates.
Safety Notes
Unripe fruit and the papery husk should not be eaten. All parts except ripe fruit are toxic (nightshade family).
