Starting Tomatillos from Seed
Tomatillos are a rewarding crop to grow from seed (buy tomatillo seeds here), offering abundant harvests of these tangy, versatile fruits. Whether you're a seasoned gardener or trying tomatillos for the first time, starting from seed is affordable and straightforward. Here's what you need to know to succeed.
Starting Seeds Indoors
Start tomatillo seeds indoors 6–8 weeks before your last spring frost. Fill seed trays or small pots with seed-starting mix and plant seeds about ¼ inch deep. Keep the soil consistently moist but not waterlogged, and maintain temperatures between 70–80°F for best germination. Most seeds sprout within 7–14 days.
Provide seedlings with bright light for 14–16 hours daily using grow lights positioned 2–3 inches above the plants. Rotate trays regularly to prevent leggy growth. Water from below when possible to keep foliage dry and reduce disease risk.
Hardening Off and Transplanting
About 2 weeks before moving seedlings outdoors, gradually expose them to direct sunlight and wind in short, increasing increments. This hardening-off process prevents transplant shock and strengthens young plants.
Transplant seedlings into the garden or larger containers once soil temperatures reach 60°F and frost danger has passed. Space plants 2–3 feet apart in full sun with well-draining soil enriched with compost. Tomatillos need at least 6–8 hours of direct sunlight daily.
Supporting Growth
Install stakes or cages early to support sprawling stems as plants mature. Water deeply but less frequently to encourage strong root systems. Apply a 2–3 inch layer of mulch around plants to retain moisture, regulate soil temperature, and suppress weeds.
Feed plants every 3–4 weeks with a balanced organic fertilizer once they begin flowering. Avoid excessive nitrogen, which promotes foliage at the expense of fruit production.
Harvesting
Tomatillos are ready to harvest 60–90 days after transplanting. Pick fruits once they've filled their papery husk and turned pale green or yellow. Ripe tomatillos are firm, fragrant, and easily detach from the plant. A single plant typically produces dozens of fruits throughout the season.
Growing tomatillos from seed connects you directly to the harvest process and ensures you'll have fresh, organic fruit for salsa, sauces, and more.
