Louisiana planting calendar

When to plant oregano in Louisiana — sow, transplant & harvest dates

Louisiana is mostly USDA zone 9a (range 8a-9b). Dates below are derived from oregano's frost tolerance and Louisiana's frost window — not generic national averages.

Oregano planting timetable for Louisiana

Stage	When in Louisiana	Anchor
Start seeds indoors (spring crop)	early February (February 1)	6 weeks before the last frost (mid-March)
Transplant outside (spring crop)	mid-March (March 15)	0 days after the last frost (mid-March)
Spring-crop harvest	early June onward, before peak summer heat	80-day crop — finishes before mid-summer
Plant the fall crop	mid-August (August 13) — once the worst heat breaks	~94 days before the first fall frost (mid-November)
Fall-crop harvest	early November into early winter	80-day crop — often the more productive of the two

Dates are state-wide averages for the dominant zone. Local microclimates — elevation, urban heat, coastal moderation — can shift the window by 1-2 weeks. Use the frost-date calculator for a date tuned to your town.

Why Louisiana's climate shifts the oregano dates

Louisiana's long hot summer shuts down fruit set, so locals run two short crops — a spring planting and a fall planting — around a deliberate mid-summer pause, instead of one long northern-style season. Louisiana is hot, humid, and subtropical with a very long season. Drainage, heat, and humidity drive plant choice far more than cold.

Oregano is a hardy perennial in zones 5-10 and is easiest to start from seed indoors 6-8 weeks before the last spring frost, or from divisions or cuttings; seeds are tiny and slow to produce harvestable growth. Transplant outdoors around the last frost date once soil has warmed to at least 13 °C — established plants tolerate light frost. In zones 4 and colder, treat as an annual or overwinter divisions in a cold frame; in zones 9-11 it stays evergreen but may die back in intense summer heat without afternoon shade.

Frost-risk note

A light frost in the northern parishes near Shreveport (zone 8a) can clip an early spring planting; the bigger risk is mid-summer heat sterilising flowers.

Regional variation within Louisiana

the Gulf Coast and New Orleans (zone 9b) can start the spring crop weeks earlier and may garden almost year-round; the northern parishes near Shreveport (zone 8a) runs a shorter, more northern-style single season.

New Orleans — USDA zone 9b
Baton Rouge — USDA zone 9a
Shreveport — USDA zone 8b
Lafayette — USDA zone 9a

What else to plant in Louisiana around then

Pair the spring slot with other heat-lovers (peppers, squash, beans); use the cool October–February window for greens and brassicas.

Quick-grow guide

Sun: Full sun — 6+ hours direct.
Soil temperature for germination: 13-21 °C (55-70 °F).
Spacing: 8-12 inches (20-30 cm) between plants.
Days to harvest: ~80 days from planting out.

Frequently asked questions

When is the best time to plant oregano in Louisiana?

In Louisiana (mostly USDA zone 9a), sow oregano indoors around early February, set the spring crop out mid-March, harvest before peak summer heat, then plant a second crop mid-August for an autumn harvest. Avoid mid-summer. Oregano are cold-hardy — they tolerate frost and actively prefer cool weather, so they go in well before the last spring frost and bolt in summer heat.

What USDA zone is Louisiana?

Most of Louisiana sits in USDA hardiness zone 9a, with the state spanning roughly 8a-9b from the northern parishes near Shreveport (zone 8a) to the Gulf Coast and New Orleans (zone 9b). The last spring frost averages mid-March and the first fall frost mid-November.

Can you grow oregano in Louisiana?

Yes. Louisiana's dominant zone 9a supports oregano — the key is timing. Oregano are cold-hardy — they tolerate frost and actively prefer cool weather, so they go in well before the last spring frost and bolt in summer heat.

Does the planting date change across Louisiana?

What else can I plant in Louisiana around the same time?

Pair the spring slot with other heat-lovers (peppers, squash, beans); use the cool October–February window for greens and brassicas.

Source and methodology

State zone spans from the USDA Plant Hardiness Zone Map (2023); frost-date averages from NOAA Climate Data Online. Hot-state two-season timing cross-checked against the UF/IFAS Florida Gardening Calendar and the University of Arizona Cooperative Extension planting calendar. Curated by the Growli editorial team.