How to Grow Basil from Seed: Sweet Basil Indoors and Outdoors
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How to Grow Basil from Seed: Sweet Basil Indoors and Outdoors
Basil is the herb most home cooks dream of having in endless supply. Growing from seed is fast, easy, and a single packet yields dozens of plants.
When to Start
Start indoors 4–6 weeks before last frost. Transplant outdoors only when nights stay above 50°F (10°C). In zones 9–11, direct-sow outdoors year-round.
Sowing
Sow seeds ¼ inch deep, 2–3 per cell in moist seed-starting mix. Keep at 70–80°F (21–27°C). Germination in 5–10 days. Thin to the strongest seedling. Needs 6–8 hours of direct light daily.
Transplanting
Harden off 7–10 days. Space 12–18 inches apart in rich, well-drained soil, pH 6.0–7.0. Works well in 12-inch containers too.
Pruning for Maximum Yield — The Most Important Tip
When your plant has 3–4 pairs of leaves, pinch off the top set. This forces bushy growth and prevents bolting. Repeat every 2–3 weeks. Remove flower buds immediately — once basil bolts, flavour diminishes.
Harvesting
Begin once plants have 6 pairs of leaves. Always cut above a leaf node. Harvest in the morning for most intense flavour. Store at room temperature in water — never refrigerate.
Frequently Asked Questions
How long does basil take to grow from seed to harvest?
Basil germinates in 5–10 days and is ready for first harvest about 3–4 weeks after transplanting. With regular pruning, one plant produces harvests all summer long.
Can I grow basil indoors year-round?
Yes — with 8+ hours of grow light daily and temperatures above 65°F (18°C), basil thrives indoors year-round.
Why is my basil turning yellow?
Most commonly caused by overwatering, insufficient light, or cold temperatures below 60°F (15°C). Check drainage and move to a brighter, warmer spot.
Fresh basil all summer — starting now. Shop our Large Leaf Sweet Basil Seeds at Vyrgromm.
Growing the future together. — Vyrgromm