Greek Oregano

Origanumvulgare subsp. prismaticum

Family
Lamiaceae (lay-mee-AY-see-ee)
Genus
Origanum (or-RI-ga-num)
Synonym
Sun Exposure
Full Sun
Foliage
Grown for foliage
Herbaceous
Shiny/Glossy
Height
18-24 in. (45-60 cm)
Spacing
15-18 in. (38-45 cm)
Hardiness
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Danger
N/A
Bloom Color
White/Near White
Bloom Time
Mid Summer
Other Details
Category
Herbs
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
8.6 to 9.0 (strongly alkaline)
Patent Information
Non-patented
Propagation Methods
From seed; sow indoors before last frost
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Denver, Colorado

Dracut, Massachusetts

Milwaukee, Wisconsin

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Gardener's Notes:

1
positive
0
neutral
0
negative
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Denver, CO (Zone 5b) | May 2008 | positive

I bought two Greek Oregano plants at the Denver Botanic Gardens plant sale in 2007. Both are still thriving, a year later. Not much bot...Read More

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