When to Plant Goji Berries in Dewey County, SD
May in Dewey County, South Dakota — your action list
Here's what deserves your attention in Dewey County, South Dakota this month. Everything below is tailored to Zone 4b and timed around your local frost dates.
To set up a strong June, finish these tasks
- Transplants going out: goji berries
Goji berries are a deciduous shrub producing small, bright red berries valued as a superfood. The plants are extremely hardy and drought-tolerant once established.
Dewey County, South Dakota is in USDA Zone 4b. The average last spring frost is May 11 and the first fall frost is October 3, giving you a growing season of approximately 145 days.
At an elevation of 1,004 feet, Dewey County receives approximately 25.2 inches of rainfall annually with predominantly loam soil. Summer highs average 84°F, so choose short-season varieties of Goji Berries to ensure they mature before fall.
Dewey County Soil Profile
Soil Type
Loam
Soil pH
6.2-7.6
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 Dewey County
How your county's soil matches Goji Berries's growing requirements.
Soil pH
Your soil pH (6.2–7.6) overlaps with Goji Berries's range (6.5–8.0), though not a perfect match.
Soil Texture
The loam soil in Dewey County is excellent for Goji Berries — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (3.9%). Annual compost additions will help Goji Berries.
How to Plant Goji Berries
Plant Water Budget
Water stress score is 8/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Goji Berries
Goji Berries needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.
| Month | Goji Berries Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.5" | 0" | ❄️ Dormant |
| Feb | — | 1.3" | 0" | ❄️ Dormant |
| Mar | — | 2" | 0" | ❄️ Dormant |
| Apr | — | 2.9" | 0" | ❄️ Dormant |
| May | 2.2" | 3.3" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 1.8" | 0.4" | 💧 Light watering |
| Jul | 2.2" | 2.1" | 0.1" | 💧 Light watering |
| Aug | 2.2" | 2.8" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 2.3" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 2.3" | 0" | ✅ Rainfall sufficient |
| Nov | — | 1.5" | 0" | ❄️ Dormant |
| Dec | — | 1.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Oct in Dewey County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Goji Berries 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.
Goji Berries Planting Timeline — Dewey County, SD
Goji Berries Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | June 8 | Jun 8 – Jun 22 |
· 48" apart · Rows 72" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | — |
| June | Transplant Outdoors |
| July | — |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
730–1095 days
🧪 Soil pH
Needs 6.5–8 · Your soil: acceptable
🗺️ USDA Zone
Zone 4b
📆 Growing Season
145 days in Dewey County
Growing Tips for Goji Berries in Dewey County
Direct sow Goji Berries outdoors after May 11 in Dewey County when soil has warmed and frost danger has passed.
Your 145.0-day growing season in Dewey County is tight for Goji Berries (730.0-1095.0 days to maturity). Start indoors and choose early-maturing varieties.
Common pests for Goji Berries in this region include tomato hornworm and aphids. Use row covers early in the season and inspect plants weekly.
General growing tips
Plant in well-drained soil in full sun. Prune annually to manage the arching, somewhat wild growth habit. Berries ripen over an extended period in summer and fall. Can be trellised.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Goji Berries in Other Locations
Frequently Asked Questions
When should I plant Goji Berries in Dewey County, SD?
Dewey County is in Zone 4b with an average last frost of May 11. Plan your Goji Berries planting based on this frost date — see the calendar above for exact timing.
What planting zone is Dewey County, SD?
Dewey County, South Dakota is in USDA Hardiness Zone 4b. The average last spring frost is May 11 and first fall frost is October 3.
Your Dewey County Garden Planner — Free
A 24-page printable planner built for Dewey County (Zone 4b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.