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When to Plant Marjoram in Falls County, TX

Sweet marjoram is a tender perennial herb with a delicate, sweet oregano-like flavor. It is a cornerstone of Mediterranean cooking and pairs well with meats and vegetables.

Falls County, Texas is in USDA Zone 8a. The average last spring frost is March 17 and the first fall frost is November 13, giving you a growing season of approximately 241 days.

At an elevation of 66 feet, Falls County receives approximately 66.1 inches of rainfall annually with predominantly clay soil. Summer highs average 97ยฐF, so Marjoram may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Marjoram, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Marjoram root diseases.

Falls County, TX (Zone 8a) Long season
241 days
Last Spring Frost March 17
241 growing days
First Fall Frost November 13

Falls County Soil Profile

Soil Type

Clay

Soil pH

7.1-8.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (107 days to spare)
Transplant: Mar 13 🍅 Harvest: May 15 – Jul 24
Recommended (50%) ✓ Fits season (101 days to spare)
Transplant: Mar 24 🍅 Harvest: May 26 – Aug 4
Safe Start (90%) ✓ Fits season (94 days to spare)
Transplant: Apr 15 🍅 Harvest: Jun 17 – Aug 26

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Falls County

How your county's soil matches Marjoram's growing requirements.

Soil pH

Your soil pH (7.1โ€“8.2) is more alkaline than Marjoram prefers (6.5โ€“7.5). Add sulfur or peat moss to lower pH.

Soil Texture

Your clay soil in Falls County is workable for Marjoram. Add compost annually to improve structure.

Organic Matter

Organic matter is moderate (2.6%). Annual compost additions will help Marjoram.

How to Plant Marjoram

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Succession Planting Marjoram

4
successive plantings in your 241-day season

Sow every 6.9 weeks. Last sowing by Aug 15 to harvest before frost.

Plant Water Budget

Plant needs
0.3″/week
Rainfall provides
1.2″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Marjoram

Marjoram needs approximately 0.3 inches of water per week (1.3" per month). Here's how your county's rainfall compares month by month.

Month Marjoram Needs Rainfall You Supplement Action
Jan โ€” 1.8" 0" โ„๏ธ Dormant
Feb โ€” 2" 0" โ„๏ธ Dormant
Mar 1.3" 4.7" 0" โœ… Rainfall sufficient
Apr 1.3" 6.7" 0" โœ… Rainfall sufficient
May 1.3" 10" 0" โœ… Rainfall sufficient
Jun 1.3" 9.5" 0" โœ… Rainfall sufficient
Jul 1.3" 9.2" 0" โœ… Rainfall sufficient
Aug 1.3" 7.4" 0" โœ… Rainfall sufficient
Sep 1.3" 7" 0" โœ… Rainfall sufficient
Oct 1.3" 4.1" 0" โœ… Rainfall sufficient
Nov 1.3" 2.2" 0" โœ… Rainfall sufficient
Dec โ€” 1.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Falls County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Marjoram Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" โ€” every day above 50ยฐF deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Marjoram needs ~1,706 GDD — county provides 5,482 GDD Excellent fit

Marjoram Planting Timeline โ€” Falls County, TX

Marjoram Planting Calendar

Activity When Date Range
Transplant Outdoors March 24 Mar 24 โ€“ Apr 7
Harvest May 26 May 26 โ€“ Aug 4

Plant 0.5" deep ยท 8" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Transplant Outdoors
April Transplant Outdoors
May Harvest
June Harvest
July Harvest
August Harvest
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.3"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

60โ€“90 days

๐Ÿงช Soil pH

Needs 6.5โ€“7.5 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

241 days in Falls County

Growing Tips for Marjoram in Falls County

Direct sow Marjoram outdoors after March 17 in Falls County when soil has warmed and frost danger has passed.

With Falls County's clay soil (36% clay), work in 3-4 inches of compost before planting Marjoram. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 97ยฐF in Falls County, provide afternoon shade for Marjoram and water deeply in the morning.

With 66" of annual rainfall in Falls County, ensure good drainage for Marjoram โ€” excess moisture can promote root rot and fungal diseases.

General growing tips

Start seeds indoors 6-8 weeks before last frost. Harvest stems just as flower buds appear for peak flavor. In cold climates, grow as an annual or bring containers indoors.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Marjoram in Falls County, TX?

Falls County is in Zone 8a with an average last frost of March 17. Plan your Marjoram planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Falls County, TX?

Falls County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 17 and first fall frost is November 13.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Falls County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Falls County, TX. Local conditions may vary. Last updated: April 2026.