When to Plant Boysenberries in Refugio County, TX
Boysenberries are a cross between raspberries, blackberries, and loganberries, producing large, dark, intensely flavored berries. They are excellent for jams and pies.
Refugio County, Texas is in USDA Zone 9a. The average last spring frost is February 16 and the first fall frost is December 6, giving you a growing season of approximately 293 days.
At an elevation of 1,000 feet, Refugio County receives approximately 68.4 inches of rainfall annually with predominantly loam soil. Summer highs average 103°F, so Boysenberries may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Boysenberries root diseases.
Refugio County Soil Profile
Soil Type
Loam
Soil pH
6.7-7.2
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 Refugio County
How your county's soil matches Boysenberries's growing requirements.
Soil pH
Your soil pH (6.7–7.2) overlaps with Boysenberries's range (5.5–7.0), though not a perfect match.
Soil Texture
The loam soil in Refugio County is excellent for Boysenberries — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.0%). Annual compost additions will help Boysenberries.
How to Plant Boysenberries
Plant Water Budget
Monthly Watering Guide for Boysenberries
Boysenberries needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Boysenberries Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 2" | 0" | ❄️ Dormant |
| Feb | 4.3" | 2.1" | 2.2" | 🚿 Regular watering |
| Mar | 4.3" | 3.9" | 0.4" | 💧 Light watering |
| Apr | 4.3" | 8.3" | 0" | ✅ Rainfall sufficient |
| May | 4.3" | 9.2" | 0" | ✅ Rainfall sufficient |
| Jun | 4.3" | 11.3" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 9.3" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 8" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 5.7" | 0" | ✅ Rainfall sufficient |
| Oct | 4.3" | 4.5" | 0" | ✅ Rainfall sufficient |
| Nov | 4.3" | 2.4" | 1.9" | 💧 Light watering |
| Dec | 4.3" | 1.8" | 2.5" | 🚿 Regular watering |
Water needs are for active growing months only (Feb–Dec in Refugio County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Boysenberries 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.
Boysenberries Planting Timeline — Refugio County, TX
Boysenberries Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | March 2 | Mar 2 – Mar 16 |
· 24" apart · Rows 72" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Transplant Outdoors |
| April | — |
| May | — |
| June | — |
| July | — |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1"/week · Only during dry spells
📅 Days to Maturity
365–730 days
🧪 Soil pH
Needs 5.5–7 · Your soil: acceptable
🗺️ USDA Zone
Zone 9a
📆 Growing Season
293 days in Refugio County
Growing Tips for Boysenberries in Refugio County
Direct sow Boysenberries outdoors after February 16 in Refugio County when soil has warmed and frost danger has passed.
With summer highs reaching 103°F in Refugio County, provide afternoon shade for Boysenberries and water deeply in the morning.
Your 294.0-day growing season in Refugio County is tight for Boysenberries (365.0-730.0 days to maturity). Start indoors and choose early-maturing varieties.
General growing tips
Provide strong trellising for vigorous canes. Prune spent canes to ground after harvest. Mulch heavily to retain moisture. Protect from wind to prevent cane damage.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Boysenberries in Other Locations
Frequently Asked Questions
When should I plant Boysenberries in Refugio County, TX?
Refugio County is in Zone 9a with an average last frost of February 16. Plan your Boysenberries planting based on this frost date — see the calendar above for exact timing.
What planting zone is Refugio County, TX?
Refugio County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 16 and first fall frost is December 6.
Plan Your Garden with Confidence
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