Lemon Sweet Dan

Basil

45d to harvest

Sunlit and vivid, Lemon Sweet Dan basil releases a bright, lemony perfume with a sweet, gently herbal finish that lingers on the palate. The leaves are tender and velvety, forming lush, compact mounds of medium-green foliage with a distinctly citrus-tinged aroma. Ideal for fresh use—tossed into salads, stirred into sauces, and used to crown summer dishes with a fragrant, lemon-bright signature.

Crop Dates

Growing note: In frost-free Zone 10b, grow this cool-season crop during the cooler dry season (October–February).

Milestone	Date
Start Indoors	—
Climate	Frost-Free Climate
Transplant / Sow Outdoors	Oct 1st
Harvest Begins	Nov 15th
Harvest Ends	Feb 28th

Crop Details

Trait	Value
Days to Maturity	45
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

Frequently Asked Questions

What is a common pest or disease on sweet basil (Ocimum basilicum), and how can I prevent or treat it?

On Ocimum basilicum, downy mildew shows as yellow patches on the upper leaf surface with a gray-purple fuzzy growth underneath, often after cool, humid nights. Improve airflow by spacing plants and watering at soil level, then remove badly infected leaves early to slow spread. If it’s recurring, use a preventative copper-based fungicide according to label directions, especially when weather turns damp.

How often should I water lemon sweet basil during peak growth, and what soil moisture level should I maintain?

During active growth, keep the root zone evenly moist but never waterlogged—aim for soil that stays lightly damp 1 inch (2–3 cm) below the surface. In warm weather in full sun, this often means watering about once every 2–3 days, and sooner if the top layer dries out. Water in the morning and ensure drainage so stems and leaves don’t stay wet overnight.

How do I know when lemon sweet basil (Ocimum basilicum) is ready to harvest?

Harvest when plants reach about 6–8 inches (15–20 cm) tall and have several pairs of mature leaves, typically around the 45-day mark. Pick when leaves are fully developed but before the plant starts extensive flowering; pinch or snip just above a leaf pair to encourage branching. For best flavor, harvest on a dry morning and avoid removing more than about one-third of the plant at a time.