When to plant Grapes in Clark County, KS
Clark County's short 189-day growing season means one Grapes planting between May 7 and May 21. No fall crop in Zone 6b.
When to Plant Grapes in Clark County, KS
What to do in June
Your Clark County, Kansas garden is entering a new phase. Here's what's on the schedule for June and why each task matters now.
Grapes are vigorous climbing vines producing clusters of sweet or wine-quality fruits. They require training on a trellis or arbor and annual pruning for best production.
Clark County, Kansas is in USDA Zone 6b. The average last spring frost is April 16 and the first fall frost is October 22, giving you a growing season of approximately 189 days.
At an elevation of 867 feet, Clark County receives approximately 22.3 inches of rainfall annually with predominantly loam soil. Summer highs average 92°F, providing good warmth for Grapes during the growing season.
Clark County Soil Profile
Soil Type
Loam
Soil pH
6.8-7.6
Drainage
Well Drained
Grapes 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 Clark County
How your county's soil matches Grapes's growing requirements.
Soil pH
Your soil pH (6.8–7.6) is more alkaline than Grapes prefers (5.5–7.0). Add sulfur or peat moss to lower pH.
Soil Texture
The loam soil in Clark County is excellent for Grapes — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Grapes.
Organic Matter
Organic matter is moderate (3.3%). Annual compost additions will help Grapes.
How to Plant Grapes
Grapes Water Budget
Water stress score is 8/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Grapes
Grapes needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.
| Month | Grapes Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 0.6" | 0" | ❄️ Dormant |
| Feb | — | 0.8" | 0" | ❄️ Dormant |
| Mar | — | 1.2" | 0" | ❄️ Dormant |
| Apr | 3" | 2" | 1" | 💧 Light watering |
| May | 3" | 3.4" | 0" | ✅ Rainfall sufficient |
| Jun | 3" | 3.7" | 0" | ✅ Rainfall sufficient |
| Jul | 3" | 3.1" | 0" | ✅ Rainfall sufficient |
| Aug | 3" | 3" | 0" | ✅ Rainfall sufficient |
| Sep | 3" | 1.9" | 1.1" | 💧 Light watering |
| Oct | 3" | 1.2" | 1.8" | 🚿 Regular watering |
| Nov | — | 0.8" | 0" | ❄️ Dormant |
| Dec | — | 0.5" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Clark County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Grapes 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.
Grapes Planting Timeline — Clark County, KS
Grapes Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | May 7 | May 7 – May 21 |
· 72" apart · Rows 96" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Transplant Outdoors |
| June | — |
| July | — |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.7"/week · 1-2 times/week
📅 Days to Maturity
730–1095 days
🧪 Soil pH
Needs 5.5–7 · Your soil: too_alkaline
🗺️ USDA Zone
Zone 6b
📆 Growing Season
189 days in Clark County
Growing Tips for Grapes in Clark County
Direct sow Grapes outdoors after April 16 in Clark County when soil has warmed and frost danger has passed.
Your 189.0-day growing season in Clark County is tight for Grapes (730.0-1095.0 days to maturity). Start indoors and choose early-maturing varieties.
General growing tips
Provide a strong trellis system. Prune heavily in late winter while dormant. Thin fruit clusters for larger berries. Good air circulation prevents fungal diseases.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Grapes in Other Locations
Frequently Asked Questions
When should I plant Grapes in Clark County, KS?
Clark County is in Zone 6b with an average last frost of April 16. Plan your Grapes planting based on this frost date — see the calendar above for exact timing.
What planting zone is Clark County, KS?
Clark County, Kansas is in USDA Hardiness Zone 6b. The average last spring frost is April 16 and first fall frost is October 22.
When should I plant Grapes in Clark County, KS?
In Clark County, KS, plant Grapes after the last frost (around April 16) and before the first frost (around October 22). Best results when soil holds above 50°F.
What growing zone is Clark County, KS for Grapes?
Clark County sits in USDA Zone 6b. Grapes grows reliably in zones 4a through 10b, so it's a good fit here.
Can Grapes grow in Clark County's climate?
Yes — Grapes grows well in Clark County's temperate climate. Clark County averages a 189-day frost-free season, with last frost around April 16 and first frost around October 22.
Your Clark County Garden Planner — Free
A 22-page printable planner built for Clark County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.