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Basil (Genovese)

🌿 Herb
Hardiness Zones 4a to 10b
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📖 About This Plant

Basil (Genovese) is the gold standard of culinary basil — the variety that defines Italian cooking, born from the Ligurian tradition of Genoa and certified by the Italian government as the authentic base ingredient for true Pesto Genovese. The large, cupped, dark-green leaves carry a complex aromatic profile that combines clove, anise, and pepper notes in a way no other basil variety fully replicates. Genovese basil thrives in warm conditions, producing lush growth from late spring through summer heat, and its intense fragrance increases when you brush past the plant or step on a fallen leaf. At peak production, a single well-maintained Genovese plant can yield enough fresh basil to make a batch of pesto every two weeks throughout the summer.

📊 Quick Facts

Sun
Full Sun
Water
Moderate
Season
Late Spring
Harvest
50-60 days

📅 When to Plant in Your Area

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🌱 Care Tips

Start Genovese basil indoors 4–6 weeks before your last frost date in a warm spot (soil temperature above 65°F is critical — cold soil causes purple discoloration and stunted growth). Transplant outdoors only after nighttime temperatures are reliably above 50°F. Space plants 12 inches apart in full sun with well-draining, fertile soil; basil grown in partial shade produces larger but less intensely flavored leaves. Water at the base, keeping leaves dry to prevent fusarium wilt and black spot. The most important care task is pinching: as soon as you see flower buds forming (typically 6–8 weeks after transplant), pinch them off. Every flower bud you remove redirects energy back into leaf production and delays the sharp flavor change that comes with bolting. Feed every 3–4 weeks with a balanced liquid fertilizer. Harvest by snipping the top 2–3 sets of leaves — this encourages lateral branching and turns one stem into four. Basil thrives alongside tomatoes, and the pairing is as old as Italian cuisine itself.

🤝 Companion Plants

These plants grow well alongside Basil:

🌿 Related Herb

More herb that grow in similar conditions:

❓ Frequently Asked Questions

What hardiness zones can you grow Basil (Genovese) in?
Basil (Genovese) grows best in USDA Hardiness Zones 4a–10b. Basil (Genovese) is the gold standard of culinary basil — the variety that defines Italian cooking, born from the Ligurian tradition of Genoa and certified by the Italian government as the authentic base ingredient for true Pesto Genovese. Always check your local zone before planting.
How much sun does Basil (Genovese) need?
Basil (Genovese) requires Full Sun. Start Genovese basil indoors 4–6 weeks before your last frost date in a warm spot (soil temperature above 65°F is critical — cold soil causes purple discoloration and stunted growth).
When should I plant Basil (Genovese)?
Basil (Genovese) is best planted in Late Spring. Start Genovese basil indoors 4–6 weeks before your last frost date in a warm spot (soil temperature above 65°F is critical — cold soil causes purple discoloration and stunted growth). Transplant outdoors only after nighttime temperatures are reliably above 50°F.
How long does Basil (Genovese) take to harvest?
Basil (Genovese) typically reaches harvest in 50-60 days. Water needs are Moderate. Grow it alongside Tomatoes and Peppers for best results.
Where can I buy Basil (Genovese) plants or seeds?
You can buy Basil (Genovese) from trusted online nurseries and seed suppliers. GrowScore links to the best-rated retailers for your region (US, Canada, and UK). Compare options on this page to find the best price and availability.
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