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Italian Oregano

Italian · Lamiaceae

Hardy pungent perennial oregano with oval aromatic leaves and pinkish-purple flowers. A classic pizza and sauce herb that thrives in sunny lean soil and becomes more flavorful as the plant matures. Key facts: 90–100 days to maturity, 6+ hours of sun, 12–18 " spacing. Container-friendly (minimum 3-gallon pot).

Updated April 19, 2026 · Backed by 5 cited sources
Overview

At a Glance

The essentials first: timing, light, spacing, seed-starting, container fit, and overall size.

Days to maturity
90–100 days
Sun
6+ hours
Full Sun
Spacing
12–18 "
between plants
Seed start
6–8 weeks
before transplant
Container
Yes
3+ gallon pot
Height
1–2 ft
at maturity
Planting window

Zone Planting Guide

Switch zones to see whether this plant is a strong fit, what frost timing looks like, and any extra notes worth planning around.

This card updates instantly with viability, frost timing, and any planting notes for your selected zone.

Care

Growing Guide

Everything in one place: seed starting, transplant timing, watering, soil, and structural support.

Seed starting
Germination
Time7–14 days
Optimal temperature70°F
Seed depth0.125"
Moving outdoors
Transplanting
Minimum soil temp50°F
Harden off7 days
Moisture
Watering
Weekly0.4–0.75 "
NeedsLow
Drip or base watering
Root zone
Soil
pH range6–8
PreferredWell Drained Lean To Average Soil
Oregano - Italian seeds

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Oregano - Italian seeds

It is still used today in Greece as a palliative for sore throat.

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Resilience

Plant Health

Stress tolerance, resistance notes, and the most common problems to watch for as plants mature.

Tolerance
Heat: High Cold: Moderate Drought: High

Common Issues

Feeding & picking

Nutrition & Harvest

How hungry the plant is, what ripe harvest looks like, and how long the crop keeps after picking.

Feeding
Nutrition
Feeding intensityLight feeder
RecipesWorm Castings Topdress, Compost Tea
Timing
Harvest

Leafy stems are fragrant and 4-8 inches long before heavy bloom.

Expected yield0.5–1.5 lbs/plant
Storage5 days — Use fresh or dry bundles in airy shade until crisp.
Plant relationships

Companion Planting

Helpful neighbors can support growth or deter pests. Keep antagonistic plants separated to reduce stress and competition.

What you'll need

Growing Supplies

Based on Italian Oregano's growth profile -- recommendations matched to this variety's specific requirements.

Drip irrigation / soaker hose kit

Every gardener benefits from putting water at the root zone instead of on the leaves, because drip and soaker systems reduce foliar disease pressure by limiting leaf wetness and soil splash. A quality kit should include a backflow preventer, filter, pressure reducer, and UV-resistant tubing.

Source: Iowa State University Extension; Colorado State University Extension; UMass Extension

Soil test kit

A soil test gives a baseline for pH and nutrient status so gardeners can add only what the soil actually needs. Prioritize a mail-in or lab-affiliated kit whenever possible because extension guidance notes that laboratory testing is more accurate than instant readers.

Source: University of Maryland Extension; Purdue Extension; Montana State University Extension

Quality bypass pruners

Extension guidance favors bypass designs because they make cleaner, closer cuts on living tissue than anvil types. Look for hardened steel blades that can be sharpened, a comfortable grip, and a cutting capacity matched to real home-garden stems.

Source: University of New Hampshire Extension; Iowa State University Extension; Purdue University Extension

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Research

Sources

Reference material and extension guidance used to build this growing guide.

seed_catalog Seeds Nowuniversity North Carolina Extension Gardener Plant Toolboxuniversity Purdue Extensionreference Missouri Botanical Garden Plant Finderinference Estimated first-season establishment timing from perennial herb culture references
Internal links

Italian Oregano Planting Dates by Zone

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