When to plant Melon in Rombauer, MO
Rombauer sits in USDA Zone 7b. Plant Melon between April 3 (after last frost on March 27) and April 24.
When to Plant Melon in Rombauer, MO
Top priorities for Butler County, Missouri gardeners in June
We've pulled the most time-sensitive tasks for Butler County, Missouri this June and put them front and centre. Tackle them in order.
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Collect melon at their peak
Check every 1–2 days. Many of these get tough or go to seed if you wait too long.
To set up a strong July, finish these tasks
- First harvests: melon
Melons are warm-season vine crops that produce sweet, juicy fruits in many varieties including muskmelon and honeydew. They need a long, hot growing season.
Rombauer, Missouri is in USDA Zone 7b. The average last spring frost is March 27 and the first fall frost is November 2, giving you a growing season of approximately 220 days.
At an elevation of 703 feet, Butler County receives approximately 36.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Melon during the growing season.
Rombauer Soil Profile
Soil Type
Silt Loam
Soil pH
5.5-6.6
Drainage
Well Drained
Melon 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 Rombauer
How your county's soil matches Melon's growing requirements.
Soil pH
Your soil pH (5.5–6.6) overlaps with Melon's range (6.0–7.0), though not a perfect match.
Soil Texture
The silt loam soil in Butler County is excellent for Melon — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.9%). Annual compost additions will help Melon.
How to Plant Melon
Succession Planting Melon
Sow every 8 weeks. Last sowing by Jul 25 to harvest before frost.
Melon Water Budget
Monthly Watering Guide for Melon
Melon needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Melon Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.5" | 0" | ❄️ Dormant |
| Feb | — | 1.6" | 0" | ❄️ Dormant |
| Mar | 4.3" | 2.5" | 1.8" | 💧 Light watering |
| Apr | 4.3" | 3.7" | 0.6" | 💧 Light watering |
| May | 4.3" | 4.8" | 0" | ✅ Rainfall sufficient |
| Jun | 4.3" | 4.1" | 0.2" | 💧 Light watering |
| Jul | 4.3" | 3.7" | 0.6" | 💧 Light watering |
| Aug | 4.3" | 3.9" | 0.4" | 💧 Light watering |
| Sep | 4.3" | 3.6" | 0.7" | 💧 Light watering |
| Oct | 4.3" | 3" | 1.3" | 💧 Light watering |
| Nov | 4.3" | 2.3" | 2" | 💧 Light watering |
| Dec | — | 2.1" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Butler County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Melon 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.
Melon Planting Timeline — Rombauer, MO
Melon Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 27 | Feb 27 – Mar 13 |
| Transplant Outdoors | April 10 | Apr 10 – Apr 24 |
| Direct Sow | April 3 | Apr 3 – Apr 24 |
| Harvest | June 19 | Jun 19 – Aug 7 |
Plant 1" deep · 30" apart · Rows 42" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors |
| April | Transplant Outdoors Direct Sow |
| May | — |
| June | Harvest |
| July | Harvest |
| August | Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1"/week · Only during dry spells
📅 Days to Maturity
70–100 days
🧪 Soil pH
Needs 6–7 · Your soil: acceptable
🗺️ USDA Zone
Zone 7b
📆 Growing Season
220 days in Butler County
Growing Tips for Melon in Rombauer
Direct sow Melon outdoors after March 27 in Butler County when soil has warmed and frost danger has passed.
Common pests for Melon in this region include squash vine borer and cucumber beetles. Use row covers early in the season and inspect plants weekly.
General growing tips
Start seeds indoors 3-4 weeks before transplanting. Plant on raised mounds of compost-enriched soil. Reduce watering as fruits ripen to concentrate sweetness.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Melon in Other Locations
When should I plant Melon in Rombauer, MO?
In Rombauer, MO, plant Melon after the last frost (around March 27) and before the first frost (around November 2). Best results when soil holds above 50°F.
What growing zone is Rombauer, MO for Melon?
Rombauer sits in USDA Zone 7b. Melon grows reliably in zones 4a through 11b, so it's a good fit here.
Can Melon grow in Rombauer's climate?
Yes — Melon grows well in Rombauer's temperate climate. Rombauer averages a 220-day frost-free season, with last frost around March 27 and first frost around November 2.
Your Butler County Garden Planner — Free
A 22-page printable planner built for Butler County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.