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When to Plant Mizuna in Victoria County, TX

Mizuna is a mild-flavored Japanese mustard green with feathery, deeply serrated leaves. It is fast-growing and makes an excellent addition to salads and stir-fries.

Victoria County, Texas is in USDA Zone 9a. The average last spring frost is February 26 and the first fall frost is November 28, giving you a growing season of approximately 275 days.

At an elevation of 3,908 feet, Victoria County receives approximately 57.3 inches of rainfall annually with predominantly loam soil. Summer highs average 101ยฐF, so Mizuna may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Mizuna root diseases.

Victoria County, TX (Zone 9a) Year-round
275 days
Last Spring Frost February 26
275 growing days
First Fall Frost November 28

Victoria County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (217 days to spare)
Start indoors: Jan 15 Transplant: Feb 12 🍅 Harvest: Mar 19 – Apr 16
Recommended (50%) ✓ Fits season (212 days to spare)
Start indoors: Jan 29 Transplant: Feb 26 🍅 Harvest: Apr 2 – Apr 30
Safe Start (90%) ✓ Fits season (209 days to spare)
Start indoors: Feb 21 Transplant: Mar 21 🍅 Harvest: Apr 25 – May 23

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 Victoria County

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

Soil pH

Your soil pH (6.7โ€“7.4) is within Mizuna's preferred range (6.0โ€“7.5).

Soil Texture

The loam soil in Victoria County is excellent for Mizuna โ€” good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Mizuna.

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Mizuna.

How to Plant Mizuna

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Mizuna

11
successive plantings in your 275-day season

Sow every 3.4 weeks. Last sowing by Oct 14 to harvest before frost.

For a dedicated fall crop, sow by Oct 03.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 1,051 gal / 100 sq ft

Monthly Watering Guide for Mizuna

Mizuna needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Mizuna Needs Rainfall You Supplement Action
Jan โ€” 1.7" 0" โ„๏ธ Dormant
Feb 4.3" 2.1" 2.2" ๐Ÿšฟ Regular watering
Mar 4.3" 3.8" 0.5" ๐Ÿ’ง Light watering
Apr 4.3" 5.6" 0" โœ… Rainfall sufficient
May 4.3" 10" 0" โœ… Rainfall sufficient
Jun 4.3" 8.8" 0" โœ… Rainfall sufficient
Jul 4.3" 6.6" 0" โœ… Rainfall sufficient
Aug 4.3" 6.3" 0" โœ… Rainfall sufficient
Sep 4.3" 5.7" 0" โœ… Rainfall sufficient
Oct 4.3" 3.4" 0.9" ๐Ÿ’ง Light watering
Nov 4.3" 1.9" 2.4" ๐Ÿšฟ Regular watering
Dec โ€” 1.3" 0" โ„๏ธ Dormant

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

Mizuna 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.

Mizuna needs ~966 GDD — county provides 7,107 GDD Excellent fit

Mizuna Planting Timeline โ€” Victoria County, TX

Mizuna Planting Calendar

Activity When Date Range
Start Indoors January 29 Jan 29 โ€“ Feb 12
Transplant Outdoors February 26 Feb 26 โ€“ Mar 12
Direct Sow February 5 Feb 5 โ€“ Feb 26
Harvest April 2 Apr 2 โ€“ Apr 30
Fall Sowing October 3 Oct 3 โ€“ Oct 17

Plant 0.5" deep ยท 6" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Start Indoors Transplant Outdoors Direct Sow
March Transplant Outdoors
April Harvest
May โ€”
June โ€”
July โ€”
August โ€”
September โ€”
October Fall Sowing
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Partial Shade (3-6 hours)

๐Ÿ’ง Water

1"/week ยท 1-2 times/week

๐Ÿ“… Days to Maturity

30โ€“45 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: ideal

๐Ÿ—บ๏ธ USDA Zone

Zone 9a

๐Ÿ“† Growing Season

275 days in Victoria County

Growing Tips for Mizuna in Victoria County

Direct sow Mizuna outdoors after February 26 in Victoria County when soil has warmed and frost danger has passed.

With summer highs reaching 101ยฐF in Victoria County, provide afternoon shade for Mizuna and water deeply in the morning.

Your generous 276.0-day season in Victoria County allows multiple plantings of Mizuna. Sow every 15.0 days for continuous harvest.

Common pests for Mizuna in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow in spring or fall. Harvest outer leaves as needed for a cut-and-come-again approach. Mizuna is one of the most cold-tolerant Asian greens.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Mizuna in Victoria County, TX?

Victoria County is in Zone 9a with an average last frost of February 26. Plan your Mizuna planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Victoria County, TX?

Victoria County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 26 and first fall frost is November 28.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Victoria County gardeners in Zone 9a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

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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 Victoria County, TX. Local conditions may vary. Last updated: April 2026.