Start Indoors
Warmth-dependent crops need a head start indoors to reach maturity before summer’s heat fully arrives.
Starting seeds indoors gives slow-maturing plants the extra time they need to develop strong roots and foliage before transplanting outdoors. Plants like eggplant and peppers require consistent warmth—ideally 70–85°F—to germinate well and grow vigorously. Begin 6–8 weeks before your last frost date, using clean containers, quality seed mix, and bright light. Even under good conditions, some varieties may lag if started too late or in dim conditions.
Basil is particularly time-sensitive: it germinates best in soil above 60°F, but thrives above 70°F, so early indoor growth prevents stunting. If transplanted too early into cool soil, its growth stalls and leaves may purple due to cold stress. Use a heat mat only if ambient temps dip below 65°F during germination. Once seedlings have two true leaves, transplant them into larger pots to avoid root bound before outdoor hardening.
Success with indoor starts hinges on timing and light: leggy seedlings often signal insufficient light, not too much water. Position grow lights 2–3 inches above foliage and raise as plants grow. Rotate trays daily for even growth. Avoid over-fertilizing young plants; a diluted liquid feed once true leaves appear is usually enough. Hardening off over 7–10 days helps them adjust to wind, sun, and cooler nights.
