SproutSmart
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Mammoth Basil

Basil
Zone 13b Save Garden

Planting Schedule

Add Mammoth Basil to your garden to build a schedule and get reminders.
Botanical illustration of Mammoth Basil
60d to harvest

Mammoth Basil opens with an intoxicating, cool-mint brightness and a rich, classic basil perfume that lingers on the fingertips—then delivers leaves of truly generous scale. The foliage is tender and velvety, with broad, Italian-style blades that hold their shape and color through warm weather, making it a standout for bold, aromatic use. Grow Mammoth Basil for fresh bouquets of flavor, vibrant pesto-style sauces, and fragrant finishing handfuls that perfume the garden all season long.

Crop Dates

Growing note: Frost-free Zone 13b supports continuous outdoor production.
MilestoneDate
ClimateFrost-Free Climate
Growing ApproachContinuous Production

Crop Details

TraitValue
Days to Maturity60
Sun RequirementsFull SunFull sun
Growth HabitUpright
Support NeededNone
Planting DepthSurface
Germination Temp (°F)70
Min Soil Temp (°F)60
Min Night Temp (°F)50
Harden Off (days)10

Today's Conditions

Outdoor planting for Mammoth Basil in Zone 13b typically begins around throughout the growing season. Wait until soil reaches at least 60°F before transplanting Mammoth Basil.

Garden Alerts

Frost-free Zone 13b supports continuous outdoor production.

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Frequently Asked Questions

What pest or disease most commonly affects Ocimum basilicum (basil), and how do I fix it?
Basil commonly suffers from downy mildew (often showing yellow patches on the upper leaves with fuzzy gray-purple growth on the underside), especially in cool, humid weather. Remove and discard infected leaves, increase airflow around plants, and water at the soil line to keep foliage dry. If the problem keeps spreading, start fresh from healthy plants because basil mildew can quickly take over dense leaf growth.
How can I tell when Mammoth basil (Ocimum basilicum) is ready to harvest?
Harvest when plants are about 8–10 inches tall and have developed several pairs of mature leaves, typically around 60 days from sowing under good conditions. For best regrowth, pinch or cut just above a leaf pair (don’t harvest more than about one-third of the plant at once). If flower buds appear, begin harvesting more frequently to slow bolting and keep leaves tender.
Botanical illustration of Mammoth Basil

Mammoth Basil opens with an intoxicating, cool-mint brightness and a rich, classic basil perfume that lingers on the fingertips—then delivers leaves of truly generous scale. The foliage is tender and velvety, with broad, Italian-style blades that hold their shape and color through warm weather, making it a standout for bold, aromatic use. Grow Mammoth Basil for fresh bouquets of flavor, vibrant pesto-style sauces, and fragrant finishing handfuls that perfume the garden all season long.

Today's Conditions

Outdoor planting for Mammoth Basil in Zone 13b typically begins around throughout the growing season. Wait until soil reaches at least 60°F before transplanting Mammoth Basil.

Garden Alerts

Frost-free Zone 13b supports continuous outdoor production.

Sowing Tips

Soil Temperature

Direct sow or transplant when soil at planting depth holds 60°F for reliable germination and early growth.

Expert Note

Grow basil warm—transplant only after nights stay reliably warm, and harvest often to keep it bushy for pesto-style leaf production.