When to Plant Fennel in Scotts Bluff County, NE
May in the garden — Scotts Bluff County, Nebraska
If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.
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Move fennel from tray to bed
Frost risk is low now in Scotts Bluff County, Nebraska. If you've been covering beds overnight, you can stop.
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Scatter fennel into prepared beds
Keep the top inch of soil moist until germination — a gentle morning watering for 5–7 days does the job.
Florence fennel is grown for its swollen bulb-like stem base, which has a mild anise flavor. It is crisp raw in salads and sweet when roasted or braised.
Scotts Bluff County, Nebraska is in USDA Zone 5a. The average last spring frost is May 13 and the first fall frost is September 25, giving you a growing season of approximately 135 days.
At an elevation of 1,080 feet, Scotts Bluff County receives approximately 32.2 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Fennel to ensure they mature before fall.
Scotts Bluff County Soil Profile
Soil Type
Loam
Soil pH
6.3-7.5
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 Scotts Bluff County
How your county's soil matches Fennel's growing requirements.
Soil pH
Your soil pH (6.3–7.5) overlaps with Fennel's range (5.5–7.0), though not a perfect match.
Soil Texture
The loam soil in Scotts Bluff County is excellent for Fennel — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Fennel.
Organic Matter
Organic matter is moderate (3.6%). Annual compost additions will help Fennel.
How to Plant Fennel
Succession Planting Fennel
Sow every 6.9 weeks. Last sowing by Jun 27 to harvest before frost.
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Fennel
Fennel needs approximately 0.6 inches of water per week (2.6" per month). Here's how your county's rainfall compares month by month.
| Month | Fennel Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 2.1" | 0" | ❄️ Dormant |
| Feb | — | 1.9" | 0" | ❄️ Dormant |
| Mar | — | 2.6" | 0" | ❄️ Dormant |
| Apr | — | 3" | 0" | ❄️ Dormant |
| May | 2.6" | 4.1" | 0" | ✅ Rainfall sufficient |
| Jun | 2.6" | 2.2" | 0.4" | 💧 Light watering |
| Jul | 2.6" | 3.3" | 0" | ✅ Rainfall sufficient |
| Aug | 2.6" | 3.9" | 0" | ✅ Rainfall sufficient |
| Sep | 2.6" | 2.6" | 0" | ✅ Rainfall sufficient |
| Oct | — | 2.9" | 0" | ❄️ Dormant |
| Nov | — | 2" | 0" | ❄️ Dormant |
| Dec | — | 1.7" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Sep in Scotts Bluff County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Fennel 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.
Fennel Planting Timeline — Scotts Bluff County, NE
Fennel Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 18 | Mar 18 – Apr 1 |
| Transplant Outdoors | May 27 | May 27 – Jun 10 |
| Direct Sow | May 20 | May 20 – Jun 10 |
| Harvest | July 29 | Jul 29 – Sep 9 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors |
| May | Transplant Outdoors Direct Sow |
| June | Transplant Outdoors Direct Sow |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.6"/week · Natural rainfall sufficient
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 5.5–7 · Your soil: acceptable
🗺️ USDA Zone
Zone 5a
📆 Growing Season
135 days in Scotts Bluff County
Growing Tips for Fennel in Scotts Bluff County
Direct sow Fennel outdoors after May 13 in Scotts Bluff County when soil has warmed and frost danger has passed.
Common pests for Fennel in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.
General growing tips
Direct sow in late summer for fall harvest to reduce bolting. Hill soil around bulbs as they enlarge. Harvest when bulbs are tennis-ball sized before they elongate.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Fennel in Other Locations
Frequently Asked Questions
When should I plant Fennel in Scotts Bluff County, NE?
Scotts Bluff County is in Zone 5a with an average last frost of May 13. Plan your Fennel planting based on this frost date — see the calendar above for exact timing.
What planting zone is Scotts Bluff County, NE?
Scotts Bluff County, Nebraska is in USDA Hardiness Zone 5a. The average last spring frost is May 13 and first fall frost is September 25.
Your Scotts Bluff County Garden Planner — Free
A 24-page printable planner built for Scotts Bluff County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.