Lemon Basil

Basil

Zone 4b Save Garden

🌱 55d to harvest Upright

Sunlit and unmistakably fragrant, Lemon Basil unfurls with bright, citrusy perfume that rises from every leaf—cool lemon zest wov…

Crop Dates

Milestone	Date
Start Indoors	Apr 1st
Last Frost	May 13th
Transplant / Sow Outdoors	May 27th
Harvest Begins	Jul 21st
Harvest Ends	Sep 27th

Crop Details

Trait	Value
Days to Maturity	55
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	60
Min Night Temp (°F)	50
Harden Off (days)	10

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Frequently Asked Questions

What pest or disease commonly affects Ocimum basilicum (lemon basil), and how can I manage it at home?

Lemon basil commonly gets downy mildew and can show basil blight spots, especially with cool, humid nights and wet leaves. Water basil at the soil line in the morning, space plants for airflow, and remove any spotted leaves promptly; if new spotting keeps appearing, switch to a label-appropriate organic fungicide and repeat as directed. Watch also for aphids and whiteflies under leaves—blast them off with water and use insecticidal soap if populations persist.

How often should I water lemon basil (Ocimum basilicum) during active growth?

During the main growing phase, keep the top 1 inch of soil evenly moist but not soggy—typically watering every 2–3 days in warm weather, then less often as temperatures drop. Ensure good drainage and avoid wetting the foliage because basil is prone to leaf diseases when leaves stay damp. A simple check: if the soil feels dry 1 inch down, water thoroughly until excess drains.

How do I know when lemon basil is ready to harvest?

Harvest when plants are about 6–8 inches tall (often around 45–60 days) and have formed multiple sets of true leaves. Take stems by snipping just above a pair of healthy leaves, which encourages bushy regrowth, and begin harvesting before flowering for the best leaf quality. If you see flower buds forming, harvest more frequently or pinch them off to keep leaves tender.

Sunlit and unmistakably fragrant, Lemon Basil unfurls with bright, citrusy perfume that rises from every leaf—cool lemon zest woven through classic basil sweetness. The foliage is tender and velvety, with a lively, medium-green sheen and a softly serrated edge that stays lush through the season. Grow it for its aromatic leaves in fresh, bright applications and for stirring into herb-forward sauces, finishing oils, and quick pickling blends where its lemony lift shines.

Sowing Tips

Transplant Conditions

Wait until soil reaches 60°F and nights stay above 50°F before moving outdoors. Harden off for 10 days first.

Expert Note

Start Mrs. Burns' Lemon Basil indoors warm and transplant only after nights are reliably warm (≥50°F) to avoid slow, stunted growth.