When to Plant Rutabaga in Matagorda County, TX
Your May game plan for Matagorda County, Texas
Welcome to May in Zone 9b. These are the moves that will have the biggest impact on your growing season.
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Start harvesting rutabaga
Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.
Rutabagas are a cross between turnips and cabbage, producing large yellow-fleshed roots with a sweet, mild flavor. They are excellent mashed, roasted, or in stews.
Matagorda County, Texas is in USDA Zone 9b. The average last spring frost is February 19 and the first fall frost is December 6, giving you a growing season of approximately 290 days.
At an elevation of 161 feet, Matagorda County receives approximately 57.1 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 95°F, so Rutabaga may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Rutabaga will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Rutabaga root diseases.
Matagorda County Soil Profile
Soil Type
Sandy Loam
Soil pH
5.4-6.5
Drainage
Well Drained
Plant Planting Risk Windows
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 Matagorda County
How your county's soil matches Rutabaga's growing requirements.
Soil pH
Your soil pH (5.4–6.5) is more acidic than Rutabaga prefers (6.0–7.5). Add garden lime to raise pH.
Soil Texture
Sandy soil in Matagorda County warms quickly in spring but drains fast. Rutabaga will need more frequent watering and regular compost additions to retain nutrients.
Organic Matter
Organic matter is low (1.9%). Add 2-3 inches of compost before planting Rutabaga.
How to Plant Rutabaga
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Succession Planting Rutabaga
Sow every 9.1 weeks. Last sowing by Aug 28 to harvest before frost.
For a dedicated fall crop, sow by Oct 11.
Plant Water Budget
Monthly Watering Guide for Rutabaga
Rutabaga needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.
| Month | Rutabaga Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.4" | 0" | ❄️ Dormant |
| Feb | 3" | 1.9" | 1.1" | 💧 Light watering |
| Mar | 3" | 3.4" | 0" | ✅ Rainfall sufficient |
| Apr | 3" | 6.2" | 0" | ✅ Rainfall sufficient |
| May | 3" | 7.9" | 0" | ✅ Rainfall sufficient |
| Jun | 3" | 9.4" | 0" | ✅ Rainfall sufficient |
| Jul | 3" | 7.8" | 0" | ✅ Rainfall sufficient |
| Aug | 3" | 6.9" | 0" | ✅ Rainfall sufficient |
| Sep | 3" | 5.3" | 0" | ✅ Rainfall sufficient |
| Oct | 3" | 3.7" | 0" | ✅ Rainfall sufficient |
| Nov | 3" | 1.8" | 1.2" | 💧 Light watering |
| Dec | 3" | 1.4" | 1.6" | 🚿 Regular watering |
Water needs are for active growing months only (Feb–Dec in Matagorda County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Rutabaga 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" — every day above 50°F 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.
Rutabaga Planting Timeline — Matagorda County, TX
Rutabaga Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | January 29 | Jan 29 – Feb 19 |
| Harvest | April 23 | Apr 23 – May 28 |
| Fall Sowing | October 11 | Oct 11 – Oct 25 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Direct Sow |
| February | Direct Sow |
| March | — |
| April | Harvest |
| May | Harvest |
| June | — |
| July | — |
| August | — |
| September | — |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.7"/week · Natural rainfall sufficient
📅 Days to Maturity
80–100 days
🧪 Soil pH
Needs 6–7.5 · Your soil: too_acidic
🗺️ USDA Zone
Zone 9b
📆 Growing Season
290 days in Matagorda County
Growing Tips for Rutabaga in Matagorda County
Direct sow Rutabaga outdoors after February 19 in Matagorda County when soil has warmed and frost danger has passed.
Sandy soil in Matagorda County dries quickly — mulch Rutabaga with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
Common pests for Rutabaga 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 early summer for fall harvest. Thin seedlings to 6-8 inches apart. Flavor improves significantly after a few light frosts.
Companion Planting
Good Companions
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Rutabaga in Other Locations
Frequently Asked Questions
When should I plant Rutabaga in Matagorda County, TX?
Matagorda County is in Zone 9b with an average last frost of February 19. Plan your Rutabaga planting based on this frost date — see the calendar above for exact timing.
What planting zone is Matagorda County, TX?
Matagorda County, Texas is in USDA Hardiness Zone 9b. The average last spring frost is February 19 and first fall frost is December 6.
Your Matagorda County Garden Planner — Free
A 24-page printable planner built for Matagorda County (Zone 9b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.