Custer County, NE — Planting Guide
Custer County is in USDA Zone 4b. The average last spring frost is May 7 and the first fall frost is October 2, giving you a growing season of approximately 148 days.
At an elevation of 997 ft, Custer County receives approximately 31.2 in of rainfall annually. Summer highs average 83°F with winter lows around 1°F. The predominant soil type is Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 26 days year to year — ranging from April 21 in warm years to May 17 in cold years. Custer County scores 71/100 (Good) on the Microclimate Index.
🌡️ Zone
4b (-25°F to -20°F min)
❄️ Last Frost
May 7
🍂 First Frost
October 2
📅 Growing Season
148 days
⛰️ Elevation
997 ft
🌧️ Annual Rainfall
31.2 in
Monthly Watering Calendar
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 0.7 in | 4 days | — | None |
| Feb | 1.1 in | 5 days | — | None |
| Mar | 2 in | 6 days | — | None |
| Apr | 3.7 in | 9 days | 0.6 in | Moderate |
| May | 4.3 in | 10 days | — | Low |
| Jun | 4.4 in | 7 days | — | Low |
| Jul | 4.4 in | 6 days | — | Low |
| Aug | 3.9 in | 6 days | 0.4 in | Low |
| Sep | 2.9 in | 5 days | 1.4 in | Moderate |
| Oct | 2.1 in | 4 days | 2.2 in | High |
| Nov | 1 in | 4 days | — | None |
| Dec | 0.8 in | 4 days | — | None |
Annual total: 31.3 in. Water needs vary by crop — tomatoes need ~1.2"/week while herbs like rosemary need only 0.3"/week. Check individual plant pages for crop-specific water budgets that factor in your county's rainfall and soil drainage.
Custer County Soil Profile
Soil Type
Loam
Soil pH
6.2-7.6
Drainage
Well Drained
Frost Risk Probability
Based on 31 years of NOAA weather station data from 3 stations
Beginners: Plant frost-sensitive crops (tomatoes, peppers, squash) after the "Safe" date on the left. Harvest or cover them before the "Protect by" date on the right. Hardy crops (lettuce, peas, kale) can go in the yellow transition zones.
How to read this table: "Conservative" means you're safe from frost 9 out of 10 years — best for beginners and frost-sensitive crops. "Average year" is the typical date. "Aggressive" means only 1 in 10 years is that warm — experienced gardeners with frost protection can try these dates.
| Planting Strategy | Last Spring Frost | First Fall Frost | Frost-Free Days |
|---|---|---|---|
| Conservative (safest) | May 17 | Oct 15 | 151 days |
| Cautious | May 13 | Oct 8 | 148 days |
| Average year | May 7 | Oct 2 | 148 days |
| Optimistic | Apr 29 | Sep 26 | 150 days |
| Aggressive (risky) | Apr 21 | Sep 20 | 152 days |
Not very — frost dates can vary by ±26 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Slightly — seasons are trending a bit shorter (0.4 days/decade). Stay conservative with planting dates.
Gardening Difficulty Score
Custer County offers good growing conditions. A little planning around frost dates goes a long way.
Local Gardening Help in Custer County
Free expert help is closer than you think. Your county's cooperative extension office connects you with trained gardeners, soil testing labs, and local programs — all specific to Custer County's climate and soil.
County Extension Office
Custer County University of Nebraska-Lincoln Extension Extension Office
Phone: 402-472-2966
Visit Extension Office Website →
Extension offices are run by land-grant universities and funded by the USDA. Their advice is free, research-based, and tailored to your county's specific conditions.
Master Gardener Program
Free gardening help from trained volunteers
Master Gardeners are community volunteers who complete 40–60 hours of university horticultural training. They answer gardening questions, diagnose plant problems, and offer workshops — all free.
Many extension offices run a Master Gardener hotline where you can call or email with photos of plant problems for free diagnosis.
Soil Testing
Available through your extension office
Before amending your soil, get it tested. Your extension office offers soil testing (typically $10–$25) that tells you exact pH, nutrient levels, and amendment recommendations specific to what you want to grow.
Services Available in Custer County
Finding local nurseries & garden centers in Custer County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Custer County's soil and climate that big-box stores can't. Plants from local growers are typically hardier because they're already acclimated to your zone.
How to Find Them
Search for "nurseries near Custer County NE" or "garden center Custer County" on Google Maps. Also check with your extension office — they often maintain lists of reputable local nurseries and plant sales.
Community gardens & gardening groups
Community gardens are a great way to learn from experienced gardeners in your area, especially if you're limited on space. Search "community garden Custer County NE" or check your extension office and local parks department. Facebook groups like "Custer County Gardeners" or "Nebraska Gardening" are also excellent for local advice and plant swaps.
What to Plant After Your Harvest
After your first crops finish, use the remaining frost-free days to grow a second round.
Show 6 more succession options
Sunlight & Day Length
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
Longest Day
15 hours
Summer solstice daylight
Shortest Day
9 hours
Winter solstice daylight
Peak Sun Hours
11.1 hr/day peak (summer)
Peak sun hours (green dashed line below) account for cloud cover — this is the usable direct sunlight your garden actually receives. Most vegetables need 6+ peak sun hours.
Onion tip: Your long summer days (14+ hours) support long-day onion varieties like Walla Walla, Sweet Spanish, and Ailsa Craig.
View detailed monthly data
| Month | Daylight Hours | Peak Sun Hours | Day Length |
|---|---|---|---|
| January | 9.3 hr | 4.9 hr | Short day |
| February | 10.4 hr | 6.1 hr | Short day |
| March | 11.7 hr | 7.2 hr | Short day |
| April | 13.1 hr | 8.2 hr | Neutral |
| May | 14.3 hr | 9 hr | Long day |
| June | 15 hr | 10.3 hr | Long day |
| July | 14.7 hr | 11.1 hr | Long day |
| August | 13.7 hr | 10 hr | Neutral |
| September | 12.3 hr | 8.2 hr | Neutral |
| October | 10.9 hr | 7.1 hr | Short day |
| November | 9.6 hr | 5.4 hr | Short day |
| December | 9 hr | 4.8 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting Calendar
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
Plant Warm Crops When
Soil reaches 60°F+
Soil warm enough from Jun through Sep.
Best Month to Compost
Jul
Microbial activity peaks when soil is warm.
Active Composting
6 months
Solid season. Piles go dormant in winter.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 13°F | 24°F | ❄️ Dormant | ~36 weeks |
| Feb | 18°F | 24°F | ❄️ Dormant | ~36 weeks |
| Mar | 27°F | 30°F | ❄️ Dormant | ~36 weeks |
| Apr | 44°F | 41°F | 🐢 Slow | ~24 weeks |
| May | 54°F | 51°F | ♻️ Active | ~14 weeks |
| Jun | 64°F | 59°F | ♻️ Active | ~14 weeks |
| Jul | 75°F | 65°F | 🔥 Peak | ~8 weeks |
| Aug | 75°F | 68°F | 🔥 Peak | ~8 weeks |
| Sep | 67°F | 65°F | 🔥 Peak | ~8 weeks |
| Oct | 54°F | 55°F | ♻️ Active | ~14 weeks |
| Nov | 37°F | 45°F | ❄️ Dormant | ~36 weeks |
| Dec | 23°F | 32°F | ❄️ Dormant | ~36 weeks |
Highlighted rows = soil 60°F+ (safe for warm-season transplants). Compost finishes fastest during peak activity months.
Pest & Disease Pressure in Custer County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
Insect Pest Pressure
Moderate — common pests appear but manageable with monitoring.
Disease Risk
Low disease risk — dry conditions reduce fungal problems.
Seasonal Risk
View 5 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | Moderate | May, Jun, Jul, Aug |
| Cabbage worms | Moderate | Jun, Jul, Aug |
| Colorado potato beetle | Moderate | Jun, Jul |
| Flea beetles | Moderate | May, Jun, Jul |
| Slugs | Moderate | May, Jun, Jul, Aug, Sep |
Organic pest management tips
- Maintain healthy soil with regular compost additions to build natural pest resistance
- Practice crop rotation annually to break pest cycles
- Encourage beneficial insects with flowering herbs like dill, fennel, and yarrow
Cover Crops for Custer County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with county-specific planting dates.
Spring Cover Crops (2 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | May 7 | Jul 31 | — | Rapid growth, attracts pollinators, suppresses weeds |
| White clover | Apr 12 | Jul 24 | ✓ Yes | Living mulch, fixes nitrogen, permanent ground cover |
Summer Cover Crops (1 options) — Fill gaps and suppress weeds between plantings
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Sunflowers | May 29 | Sep 11 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (5 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Daikon radish | Aug 8 | Apr 23 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jul 26 | Apr 23 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 7 | Apr 23 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jun 23 | Apr 16 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 3 | Apr 23 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate
Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.
Seasonal Wind Speed
Spring: 15 mph Summer: 12 mph
Fall: 14 mph Winter: 15 mph
Prevailing wind: S. Windy area — plant a windbreak hedge on the S side of your garden.
Windbreak Benefit
7.2/10
Strongly recommended — a windbreak (fence, hedge, or row of tall crops like corn or sunflowers) will significantly improve garden yields.
Frost Pocket Risk
Low
Relatively flat terrain (289 ft range). Frost pocket risk is minimal — garden placement is flexible.
Rainwater Harvesting Potential
How much water you can collect, when to collect it, and what size system you need for your garden.
Annual Collection
15,599 gal
Per 1,000 sq ft of roof area (at 80% collection efficiency)
Recommended Setup
6 rain barrels (55 gal each)
For a typical 500 sq ft garden. Serious collectors: consider a 2,000 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
May, Jun, Jul, Aug
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Jan, Dec
Dry months when you'll rely on stored water — size your storage for this gap.
Rainwater collection tips for your area
- Your county receives approximately 31.3 inches of rain per year
- A 1,000 sq ft roof can collect roughly 15,599 gallons annually
- Rainwater harvesting is fully legal in your state
- Use a first-flush diverter to keep roof debris out of your collection
Soil & Growing Conditions in Custer County
Soil Type
Loam
Soil pH 6.2–7.6 · Moderately Well Drained drainage
Native soil is well-suited to most vegetables and herbs with regular compost additions.
Watering Needs
Drought stress: 5.5/10
Moderate drought pressure. Drip irrigation and mulching are highly recommended to maintain soil moisture through summer.
Season Tips
148-day frost-free season
Start warm-season crops indoors and focus on short-season varieties. Cold frames extend your season by 3–4 weeks in fall.
Free Garden Planner
Plan your entire garden season — organize planting dates, track what you're growing, and know exactly when to start seeds, transplant, and harvest.
Recommended for Your Garden
Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.
Get instant, accurate soil pH readings to fine-tune your amendments.
Boost soil fertility and structure with rich, well-aged organic compost.
🥬 Vegetables to Grow in Custer County
96 vegetables that grow well in Zone 4b with planting dates for Custer County.
Show all 96 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Mar 26 | May 21 | May 28 | Aug 20 – Sep 24 | 80–100 |
| Amaranth | Mar 5 | May 21 | May 28 | Aug 27 – Oct 15 | 90–120 |
| Arugula | Mar 26 | Apr 30 | May 7 | Jun 11 – Aug 13 | 30–50 |
| Asparagus | — | — | May 21 | — | 730–1095 |
| Beets | — | Apr 30 | — | Jun 25 – Jul 23 | 50–70 |
| Belgian Endive | Mar 26 | Apr 30 | May 7 | Aug 27 – Oct 1 | 110–150 |
| Black Beans | — | May 21 | — | Aug 20 – Oct 8 | 90–120 |
| Bok Choy | Mar 26 | Apr 30 | May 7 | Jun 18 – Jul 23 | 40–60 |
| Broccoli | Mar 26 | Apr 30 | May 7 | Jul 9 – Aug 20 | 60–90 |
| Broccoli Rabe | Mar 26 | Apr 30 | May 7 | Jun 18 – Jul 23 | 40–60 |
| Brussels Sprouts | Mar 26 | Apr 30 | May 7 | Aug 6 – Oct 1 | 90–130 |
| Butternut Squash | Mar 26 | May 21 | May 28 | Aug 27 – Oct 1 | 85–110 |
| Cabbage | Mar 26 | Apr 30 | May 7 | Jul 9 – Sep 3 | 60–100 |
| Carrots | — | Apr 30 | — | Jul 2 – Aug 6 | 60–80 |
| Cauliflower | Mar 26 | Apr 30 | May 7 | Jul 2 – Sep 3 | 55–100 |
| Celeriac | Mar 26 | Apr 30 | May 7 | Aug 20 – Sep 24 | 100–120 |
| Celery | Mar 26 | Apr 30 | May 7 | Jul 30 – Sep 24 | 80–120 |
| Celtuce | Mar 26 | Apr 30 | May 7 | Jul 9 – Aug 20 | 60–90 |
| Chard | Mar 26 | Apr 30 | May 7 | Jul 2 – Aug 20 | 50–60 |
| Chickpeas | Mar 26 | Apr 30 | May 7 | Jul 30 – Sep 10 | 80–110 |
| Chicory | Mar 26 | Apr 30 | May 7 | Jul 9 – Aug 20 | 60–85 |
| Chinese Cabbage | Mar 26 | Apr 30 | May 7 | Jul 2 – Jul 30 | 50–70 |
| Christmas Lima Beans | Mar 5 | May 21 | May 28 | Aug 20 – Sep 24 | 80–100 |
| Collard Greens | Mar 26 | Apr 30 | May 7 | Jul 2 – Sep 3 | 55–75 |
| Corn | — | May 21 | — | Jul 23 – Sep 17 | 60–100 |
| Cress | Mar 26 | Apr 30 | May 7 | May 21 – Jun 11 | 14–21 |
| Crookneck Squash | Mar 26 | May 21 | May 28 | Jul 16 – Aug 13 | 45–60 |
| Crosne | — | Apr 30 | — | Oct 1 – Sep 24 | 150–200 |
| Cucumber | Mar 26 | May 21 | May 28 | Jul 23 – Sep 17 | 50–70 |
| Daikon | — | Apr 30 | — | Jun 25 – Jul 23 | 50–70 |
| Delicata Squash | Mar 26 | May 21 | May 28 | Aug 20 – Sep 24 | 80–100 |
| Edamame | — | May 21 | — | Aug 6 – Sep 17 | 75–100 |
| Endive | Mar 26 | Apr 30 | May 7 | Jun 25 – Jul 30 | 45–65 |
| Escarole | Mar 26 | Apr 30 | May 7 | Jul 2 – Jul 30 | 50–70 |
| Fava Beans | Mar 26 | Apr 30 | May 7 | Jul 23 – Sep 3 | 75–100 |
| Fennel | Mar 5 | May 21 | May 28 | Jul 30 – Sep 10 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Green Beans | — | May 21 | — | Jul 16 – Sep 10 | 50–65 |
| Horseradish | — | — | May 21 | Sep 24 – Oct 15 | 120–180 |
| Hubbard Squash | Mar 26 | May 21 | May 28 | Sep 10 – Oct 15 | 100–120 |
| Kabocha | Mar 26 | May 21 | May 28 | Aug 27 – Sep 24 | 85–100 |
| Kai Lan | Mar 26 | Apr 30 | May 7 | Jun 25 – Jul 23 | 45–60 |
| Kale | Mar 26 | Apr 30 | May 7 | Jul 2 – Aug 27 | 50–70 |
| Kidney Beans | — | May 21 | — | Aug 20 – Sep 24 | 85–110 |
| Kohlrabi | Mar 26 | Apr 30 | May 7 | Jun 25 – Jul 30 | 45–65 |
| Komatsuna | Mar 26 | Apr 30 | May 7 | Jun 11 – Jul 16 | 35–50 |
| Leeks | Mar 26 | Apr 30 | May 7 | Aug 6 – Oct 1 | 90–150 |
| Lentils | Mar 26 | Apr 30 | May 7 | Jul 30 – Sep 10 | 80–110 |
| Lettuce | Mar 26 | Apr 30 | May 7 | Jun 11 – Aug 20 | 30–60 |
| Lima Beans | — | May 21 | — | Jul 23 – Sep 3 | 60–90 |
| Mache | Mar 26 | Apr 30 | May 7 | Jun 18 – Jul 23 | 40–60 |
| Melon | Mar 26 | May 21 | May 28 | Aug 6 – Sep 24 | 70–100 |
| Microgreens | Mar 26 | Apr 30 | May 7 | May 14 – Jun 11 | 7–21 |
| Mitsuba | Mar 26 | Apr 30 | Apr 30 | Jun 25 – Aug 20 | 50–70 |
| Mizuna | Mar 26 | Apr 30 | May 7 | Jun 11 – Jul 9 | 30–45 |
| Mustard Greens | Mar 26 | Apr 30 | May 7 | Jun 11 – Aug 13 | 30–50 |
| Napa Cabbage | Mar 26 | Apr 30 | May 7 | Jul 2 – Aug 6 | 55–75 |
| Onion | Mar 26 | Apr 30 | May 7 | Aug 6 – Sep 24 | 90–120 |
| Pac Choi | Mar 26 | Apr 30 | May 7 | Jun 18 – Jul 16 | 40–55 |
| Parsnip | — | Apr 30 | — | Aug 13 – Sep 24 | 100–130 |
| Patty Pan Squash | Mar 26 | May 21 | May 28 | Jul 16 – Aug 13 | 45–60 |
| Peas | Mar 26 | Apr 30 | May 7 | Jul 2 – Aug 27 | 55–70 |
| Peppers | Feb 19 | May 21 | May 28 | Jul 30 – Oct 8 | 60–90 |
| Pole Beans | Mar 5 | May 21 | May 28 | Jul 23 – Sep 17 | 55–70 |
| Potatoes | Mar 5 | May 21 | May 28 | Aug 6 – Oct 15 | 70–120 |
| Pumpkin | Mar 26 | May 21 | May 28 | Aug 27 – Oct 15 | 85–120 |
| Purslane | Mar 26 | Apr 30 | May 7 | Jun 18 – Jul 23 | 40–60 |
| Radicchio | Mar 26 | Apr 30 | May 7 | Jul 9 – Aug 13 | 60–80 |
| Radish | — | Apr 30 | — | May 28 – Jun 18 | 22–35 |
| Rhubarb | — | — | Jun 4 | — | 365–730 |
| Romanesco | Mar 26 | Apr 30 | May 7 | Jul 23 – Sep 3 | 75–100 |
| Rutabaga | — | Apr 30 | — | Jul 23 – Aug 27 | 80–100 |
| Salsify | — | Apr 30 | — | Aug 13 – Sep 24 | 100–130 |
| Savoy Cabbage | Mar 26 | Apr 30 | May 7 | Jul 16 – Sep 10 | 70–110 |
| Scallions | Mar 26 | Apr 30 | May 7 | Jul 2 – Jul 30 | 50–70 |
| Scarlet Runner Beans | Mar 5 | May 21 | May 28 | Jul 30 – Sep 3 | 60–80 |
| Shallot | Mar 26 | Apr 30 | May 7 | Aug 6 – Sep 24 | 90–120 |
| Shiso | Mar 12 | May 14 | May 28 | Jul 23 – Sep 17 | 50–70 |
| Snap Peas | Mar 5 | May 21 | May 28 | Jul 23 – Sep 17 | 55–70 |
| Snow Peas | Mar 26 | Apr 30 | May 7 | Jul 2 – Aug 27 | 50–65 |
| Soybeans | — | May 21 | — | Aug 13 – Oct 8 | 80–120 |
| Spaghetti Squash | Mar 26 | May 21 | May 28 | Aug 27 – Sep 24 | 85–100 |
| Spinach | Mar 26 | Apr 30 | May 7 | Jun 11 – Aug 13 | 35–50 |
| Squash (Summer) | Mar 26 | May 21 | May 28 | Jul 16 – Sep 17 | 45–65 |
| Squash (Winter) | Mar 26 | May 21 | May 28 | Aug 20 – Oct 15 | 80–120 |
| Sunchoke | — | — | May 21 | Sep 10 – Oct 15 | 110–150 |
| Sunflower | Mar 5 | May 21 | May 28 | Aug 6 – Sep 24 | 70–100 |
| Sweet Corn | — | May 21 | — | Jul 23 – Sep 3 | 60–90 |
| Tatsoi | Mar 26 | Apr 30 | May 7 | Jun 11 – Jul 16 | 35–50 |
| Tomatillo | Mar 5 | May 21 | May 28 | Jul 30 – Oct 8 | 60–85 |
| Tomatoes | Mar 5 | May 21 | May 28 | Jul 30 – Oct 8 | 60–85 |
| Turnip | — | Apr 30 | — | Jun 11 – Jul 16 | 40–60 |
| Watercress | Mar 26 | Apr 30 | May 7 | Jun 18 – Jul 23 | 40–60 |
| Watermelon | Mar 26 | May 21 | May 28 | Aug 6 – Sep 24 | 70–100 |
| Wax Beans | — | May 21 | — | Jul 16 – Sep 10 | 50–65 |
| Zucchini | Mar 26 | May 21 | May 28 | Jul 16 – Sep 10 | 45–60 |
🍓 Fruits to Grow in Custer County
22 fruits that grow well in Zone 4b with planting dates for Custer County.
Show all 22 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Jun 4 | Sep 3 – Oct 29 | 90–180 |
| Aronia | — | — | Jun 4 | — | 730–1095 |
| Blueberries | — | — | Jun 4 | — | 730–1095 |
| Cantaloupe | — | — | Jun 4 | Aug 13 – Sep 17 | 70–90 |
| Cranberries | — | — | Jun 4 | — | 730–1095 |
| Currants | — | — | Jun 4 | — | 730–1095 |
| Elderberries | — | — | Jun 4 | — | 730–1095 |
| Goji Berries | — | — | Jun 4 | — | 730–1095 |
| Gooseberries | — | — | Jun 4 | — | 730–1095 |
| Grapes | — | — | Jun 4 | — | 730–1095 |
| Ground Cherry | — | — | Jun 4 | Aug 13 – Oct 8 | 65–80 |
| Hardy Kiwi | — | — | Jun 4 | — | 1095–1825 |
| Haskaps | — | — | Jun 4 | — | 730–1095 |
| Honeydew | — | — | Jun 4 | Aug 27 – Oct 8 | 80–110 |
| Jostaberry | — | — | Jun 4 | — | 730–1095 |
| Lingonberries | — | — | Jun 4 | — | 730–1095 |
| Medlar | — | — | Jun 4 | — | 1095–1825 |
| Mulberries | — | — | Jun 4 | — | 730–1825 |
| Persimmon | — | — | Jun 4 | — | 1095–2555 |
| Raspberries | — | — | Jun 4 | — | 365–730 |
| Serviceberries | — | — | Jun 4 | — | 730–1095 |
| Strawberries | — | — | Jun 4 | Sep 3 – Oct 29 | 90–365 |
🌿 Herbs to Grow in Custer County
32 herbs that grow well in Zone 4b with planting dates for Custer County.
Show all 32 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | Mar 26 | Apr 30 | Apr 30 | — | 365–730 |
| Anise | Mar 26 | Apr 30 | Apr 30 | Jul 30 – Sep 24 | 90–120 |
| Basil | Mar 12 | May 14 | May 28 | Jul 23 – Sep 24 | 50–75 |
| Bee Balm | — | — | May 14 | Aug 13 – Oct 8 | 90–120 |
| Borage | Mar 26 | Apr 30 | Apr 30 | Jun 25 – Aug 13 | 50–60 |
| Caraway | Mar 26 | Apr 30 | Apr 30 | — | 365–450 |
| Catnip | — | — | May 14 | Jul 16 – Sep 17 | 60–80 |
| Chamomile | Mar 26 | Apr 30 | Apr 30 | Jul 2 – Sep 10 | 60–90 |
| Chervil | Mar 26 | Apr 30 | Apr 30 | Jun 11 – Aug 13 | 40–60 |
| Chives | — | — | May 14 | Jul 16 – Sep 24 | 60–90 |
| Cilantro | Mar 26 | Apr 30 | Apr 30 | Jun 11 – Aug 13 | 40–60 |
| Comfrey | — | — | May 14 | Jul 16 – Sep 24 | 60–90 |
| Dill | Mar 26 | Apr 30 | Apr 30 | Jun 11 – Aug 13 | 40–60 |
| Echinacea | — | — | May 14 | Sep 17 – Oct 8 | 120–180 |
| Fennel (herb) | Mar 26 | Apr 30 | Apr 30 | Jul 2 – Sep 10 | 60–90 |
| Garlic Chives | — | — | May 14 | Jul 16 – Sep 24 | 60–90 |
| Horehound | — | — | May 14 | Jul 30 – Sep 24 | 75–90 |
| Hyssop | — | — | May 14 | Jul 23 – Sep 24 | 70–90 |
| Lemon Balm | — | — | May 14 | Jul 16 – Sep 3 | 60–70 |
| Lovage | — | — | May 14 | Jul 23 – Sep 24 | 70–90 |
| Mint | — | — | May 14 | Jul 16 – Sep 24 | 60–90 |
| Oregano | — | — | May 14 | Jul 16 – Sep 24 | 60–90 |
| Parsley | Mar 26 | Apr 30 | Apr 30 | Jul 2 – Sep 3 | 60–80 |
| Rue | — | — | May 14 | Jul 23 – Sep 24 | 70–90 |
| Sage | — | — | May 14 | Jul 30 – Sep 24 | 75–90 |
| Savory | — | — | May 14 | Jul 9 – Sep 3 | 50–70 |
| Sorrel | Mar 26 | Apr 30 | Apr 30 | Jun 11 – Aug 13 | 40–60 |
| Tarragon | — | — | May 14 | Jul 16 – Sep 24 | 60–90 |
| Thai Basil | Mar 12 | May 14 | May 28 | Jul 23 – Sep 24 | 50–75 |
| Thyme | — | — | May 14 | Jul 23 – Sep 24 | 70–90 |
| Valerian | — | — | May 14 | Sep 17 – Oct 8 | 120–180 |
| Yarrow | — | — | May 14 | Aug 13 – Oct 8 | 90–120 |
Monthly Planting Guide for Custer County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Custer County.
Frequently Asked Questions
What planting zone is Custer County, NE?
Custer County is in USDA Hardiness Zone 4b. This zone classification determines which perennial plants survive winter and sets the baseline for frost timing across the county.
When is the last frost in Custer County, NE?
Based on 31 years of NOAA weather station data, the median last spring frost in Custer County falls around May 7. In 8 out of 10 years, last frost lands between April 21 and May 17 — a 26-day window of variability. Use May 17 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Custer County, NE?
The median first fall frost in Custer County arrives around October 2. In cold years it can arrive as early as September 20; in mild years as late as October 15. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Custer County?
Custer County has a frost-free growing season of approximately 148 days. Focus on short-season varieties and start warm-season crops indoors 6–8 weeks before last frost.
What is the soil like in Custer County for gardening?
Custer County has predominantly Loam soil with a pH range of 6.2–7.6 and Moderately Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Custer County?
Custer County has commercial agriculture that includes Corn, Wheat, Soybeans. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Custer County a good location for home gardening?
Custer County scores 71/100 (Good) on our Microclimate Index, which combines frost reliability, drought pressure, soil challenge, elevation risk, and long-term climate trend. This is an above-average location for home gardening with relatively predictable growing conditions.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Custer County gardeners in Zone 4b organize planting dates, track what's growing, and never miss a planting window.
Get Your Free Garden Planner →Free download. Plan your entire garden season in minutes.
