Ready to grow? Get basil from our trusted partner nurseries and seed suppliers.
Links may earn GrowScore a small commission at no extra cost to you.
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.
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.
More herb that grow in similar conditions:
Find the best deal on basil from top-rated retailers. We may earn a commission if you buy through these links.