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Greek Columnar

Basil
Zone 12b Save Garden

Planting Schedule

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

Fragrant as a sunlit herb garden, Greek Columnar basil unfolds with a steady, upright habit and richly aromatic leaves that perfume the air with classic sweet-basil charm. The foliage is tender and velvety, with a crisp, succulent texture that holds its character beautifully in fresh applications and quick flavoring. Grow Greek Columnar for bold, clean basil notes in sauces, pesto-style blends, and bright finishing garnishes.

Crop Dates

Growing note: In frost-free Zone 12b, grow this cool-season crop during the cooler dry season (October–February).
MilestoneDate
Start Indoors—
ClimateFrost-Free Climate
Transplant / Sow OutdoorsOct 1st
Harvest BeginsNov 30th
Harvest EndsFeb 28th

Crop Details

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

Today's Conditions

Outdoor planting for Greek Columnar in Zone 12b typically begins around 2026-10-01. Wait until soil reaches at least 60°F before transplanting Greek Columnar.

Garden Alerts

In frost-free Zone 12b, grow this cool-season crop during the cooler dry season (October–February).

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Frequently Asked Questions

What pest or disease most commonly affects Ocimum basilicum (Greek Columnar) and how can I control it?
A frequent problem is downy mildew (often spotted as yellow patches on leaf tops with gray-purple growth underneath), especially when leaves stay wet overnight. Remove infected leaves early, water at the soil line (not over the foliage), and improve airflow by thinning plants so leaves aren’t touching. If it’s spreading quickly, use an appropriate labeled fungicide for basil/downy mildew and treat at the first signs.
How do I tell when Greek Columnar basil is ready to harvest?
Start harvesting around 60 days when plants have a sturdy, upright habit and produce lots of healthy side shoots along the stem. Harvest when leaves are well-sized (generally before flowering); pinch or cut just above a pair of leaves to encourage branching. For best flavor, pick in the morning and avoid removing more than about one-third of the plant at any single time.
Botanical illustration of Greek Columnar

Fragrant as a sunlit herb garden, Greek Columnar basil unfolds with a steady, upright habit and richly aromatic leaves that perfume the air with classic sweet-basil charm. The foliage is tender and velvety, with a crisp, succulent texture that holds its character beautifully in fresh applications and quick flavoring. Grow Greek Columnar for bold, clean basil notes in sauces, pesto-style blends, and bright finishing garnishes.

Today's Conditions

Outdoor planting for Greek Columnar in Zone 12b typically begins around 2026-10-01. Wait until soil reaches at least 60°F before transplanting Greek Columnar.

Garden Alerts

In frost-free Zone 12b, grow this cool-season crop during the cooler dry season (October–February).

Sowing Tips

Soil Temperature

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

Expert Note

For the longest leaf season, keep it cool early and avoid heat stress by transplanting into cool weather, then harvest frequently to encourage tender new growth.