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Nez Perce County, ID — Planting Guide

Nez Perce County is in USDA Zone 7b. The average last spring frost is May 12 and the first fall frost is September 26, giving you a growing season of approximately 137 days.

At an elevation of 4,819 ft, Nez Perce County receives approximately 16.7 in of rainfall annually. Summer highs average 90°F with winter lows around 21°F. The predominant soil type is Loam.

🌡️ Zone

7b (5°F to 10°F min)

❄️ Last Frost

May 12

🍂 First Frost

September 26

📅 Growing Season

137 days

⛰️ Elevation

4,819 ft

🌧️ Annual Rainfall

16.7 in

Nez Perce County, ID Short season
137 days
Last Spring Frost May 12
137 growing days
First Fall Frost September 26

Nez Perce County Soil Profile

Soil Type

Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Zone 7b Frost Countdown
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Last Frost: May 12 First Frost: Sep 26

Soil & Growing Conditions in Nez Perce County

Soil Type

Loam

Ideal for most crops — holds moisture and nutrients while draining well.

Watering Needs

With 16.7 inches annually, regular irrigation is essential. Drip systems and heavy mulching conserve water.

Season Tips

137-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.

Your Free Printable Garden Planner

Plan every bed, every planting, every harvest — in one place. This 22-page printable includes your zone's planting calendar, a month-by-month task list, a seed inventory tracker, a harvest log, and succession-planting charts. Built to print, write in, and actually use all season.

Instant PDF download. No spam, unsubscribe any time.

Recommended for Your Garden

🧪
Soil Test Kit $12-25

Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.

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Digital pH Meter $10-20

Get instant, accurate soil pH readings to fine-tune your amendments.

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Organic Compost $8-30

Boost soil fertility and structure with rich, well-aged organic compost.

🥬 Vegetables to Grow in Nez Perce County

112 vegetables that grow well in Zone 7b with planting dates for Nez Perce County.

Show all 112 vegetables with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Acorn Squash Apr 14 May 19 May 26 Aug 18 – Sep 22 80–100
Amaranth Mar 24 May 19 May 26 Aug 25 – Oct 13 90–120
Artichoke May 26 Sep 29 – Dec 8 120–180
Arugula Apr 7 Apr 28 May 12 Jul 18 Jun 16 – Aug 18 30–50
Asparagus May 26 730–1095
Beets Apr 28 Jul 18 Jun 23 – Jul 21 50–70
Belgian Endive Apr 7 Apr 28 May 12 Jul 18 Sep 1 – Oct 27 110–150
Bitter Melon Mar 24 May 19 May 26 Jul 28 – Sep 8 60–90
Black Beans May 19 Aug 18 – Oct 6 90–120
Bok Choy Apr 7 Apr 28 May 12 Jul 18 Jun 23 – Jul 28 40–60
Broccoli Apr 7 Apr 28 May 12 Jul 18 Jul 14 – Aug 25 60–90
Broccoli Rabe Apr 7 Apr 28 May 12 Jul 18 Jun 23 – Jul 28 40–60
Brussels Sprouts Apr 7 Apr 28 May 12 Jul 18 Aug 11 – Oct 6 90–130
Butternut Squash Apr 14 May 19 May 26 Aug 25 – Sep 29 85–110
Cabbage Apr 7 Apr 28 May 12 Jul 18 Jul 14 – Sep 8 60–100
Calabash Mar 24 May 19 May 26 Aug 18 – Oct 13 80–120
Cardoon May 26 Sep 29 – Nov 10 120–150
Carrots Apr 28 Jul 18 Jun 30 – Aug 4 60–80
Cauliflower Apr 7 Apr 28 May 12 Jul 18 Jul 7 – Sep 8 55–100
Celeriac Apr 7 Apr 28 May 12 Jul 18 Aug 25 – Sep 29 100–120
Celery Apr 7 Apr 28 May 12 Jul 18 Aug 4 – Sep 29 80–120
Celtuce Apr 7 Apr 28 May 12 Jul 18 Jul 14 – Aug 25 60–90
Chard Apr 7 Apr 28 May 12 Jul 18 Jul 7 – Aug 25 50–60
Chayote Mar 24 May 19 May 26 Sep 29 – Dec 8 120–180
Chickpeas Apr 7 Apr 28 May 12 Jul 18 Aug 4 – Sep 15 80–110
Chicory Apr 7 Apr 28 May 12 Jul 18 Jul 14 – Aug 25 60–85
Chinese Cabbage Apr 7 Apr 28 May 12 Jul 18 Jul 7 – Aug 4 50–70
Christmas Lima Beans Mar 24 May 19 May 26 Aug 18 – Sep 22 80–100
Collard Greens Apr 7 Apr 28 May 12 Jul 18 Jul 7 – Sep 8 55–75
Corn May 19 Jul 21 – Sep 15 60–100
Cowpeas May 19 Jul 21 – Sep 1 60–90
Cress Apr 7 Apr 28 May 12 Jul 18 May 26 – Jun 16 14–21
Crookneck Squash Apr 14 May 19 May 26 Jul 14 – Aug 11 45–60
Crosne Apr 28 Jul 18 Sep 29 – Dec 1 150–200
Cucumber Apr 14 May 19 May 26 Jul 21 – Sep 15 50–70
Daikon Apr 28 Jul 18 Jun 23 – Jul 21 50–70
Delicata Squash Apr 14 May 19 May 26 Aug 18 – Sep 22 80–100
Edamame May 19 Aug 4 – Sep 15 75–100
Eggplant Mar 10 May 19 May 26 Aug 4 – Oct 6 65–85
Endive Apr 7 Apr 28 May 12 Jul 18 Jun 30 – Aug 4 45–65
Escarole Apr 7 Apr 28 May 12 Jul 18 Jul 7 – Aug 4 50–70
Fava Beans Apr 7 Apr 28 May 12 Jul 18 Jul 28 – Sep 8 75–100
Fennel Mar 24 May 19 May 26 Jul 28 – Sep 8 60–90
Garlic Aug 15 Nov 14 – Mar 27 90–240
Green Beans May 19 Jul 14 – Sep 8 50–65
Horseradish May 26 Sep 29 – Dec 8 120–180
Hot Peppers Mar 10 May 19 May 26 Aug 4 – Nov 10 70–120
Hubbard Squash Apr 14 May 19 May 26 Sep 8 – Oct 13 100–120
Jicama Mar 24 May 19 May 26 Sep 29 – Dec 8 120–180
Kabocha Apr 14 May 19 May 26 Aug 25 – Sep 22 85–100
Kai Lan Apr 7 Apr 28 May 12 Jul 18 Jun 30 – Jul 28 45–60
Kale Apr 7 Apr 28 May 12 Jul 18 Jul 7 – Sep 1 50–70
Kidney Beans May 19 Aug 18 – Sep 22 85–110
Kohlrabi Apr 7 Apr 28 May 12 Jul 18 Jun 30 – Aug 4 45–65
Komatsuna Apr 7 Apr 28 May 12 Jul 18 Jun 16 – Jul 21 35–50
Leeks Apr 7 Apr 28 May 12 Jul 18 Aug 11 – Oct 27 90–150
Lentils Apr 7 Apr 28 May 12 Jul 18 Aug 4 – Sep 15 80–110
Lettuce Apr 7 Apr 28 May 12 Jul 18 Jun 16 – Aug 25 30–60
Lima Beans May 19 Jul 21 – Sep 1 60–90
Loofah Mar 24 May 19 May 26 Sep 8 – Nov 10 100–150
Luffa Mar 24 May 19 May 26 Aug 25 – Nov 10 90–150
Mache Apr 7 Apr 28 May 12 Jul 18 Jun 23 – Jul 28 40–60
Malabar Spinach Mar 24 May 19 May 26 Jul 21 – Aug 18 55–70
Melon Apr 14 May 19 May 26 Aug 4 – Sep 22 70–100
Microgreens Apr 7 Apr 28 May 12 Jul 18 May 19 – Jun 16 7–21
Mitsuba Apr 7 Apr 28 May 5 Jul 18 Jun 30 – Aug 25 50–70
Mizuna Apr 7 Apr 28 May 12 Jul 18 Jun 16 – Jul 14 30–45
Mustard Greens Apr 7 Apr 28 May 12 Jul 18 Jun 16 – Aug 18 30–50
Napa Cabbage Apr 7 Apr 28 May 12 Jul 18 Jul 7 – Aug 11 55–75
New Zealand Spinach Mar 24 May 19 May 26 Jul 21 – Aug 18 55–70
Okra Mar 24 May 19 May 26 Jul 21 – Sep 15 50–65
Onion Apr 7 Apr 28 May 12 Jul 18 Aug 11 – Sep 29 90–120
Pac Choi Apr 7 Apr 28 May 12 Jul 18 Jun 23 – Jul 21 40–55
Parsnip Apr 28 Jul 18 Aug 11 – Sep 22 100–130
Patty Pan Squash Apr 14 May 19 May 26 Jul 14 – Aug 11 45–60
Peas Apr 7 Apr 28 May 12 Jul 18 Jul 7 – Sep 1 55–70
Peppers Mar 10 May 19 May 26 Jul 28 – Oct 6 60–90
Pole Beans Mar 24 May 19 May 26 Jul 21 – Sep 15 55–70
Potatoes Mar 24 May 19 May 26 Aug 4 – Oct 13 70–120
Pumpkin Apr 14 May 19 May 26 Aug 25 – Oct 13 85–120
Purslane Apr 7 Apr 28 May 12 Jul 18 Jun 23 – Jul 28 40–60
Radicchio Apr 7 Apr 28 May 12 Jul 18 Jul 14 – Aug 18 60–80
Radish Apr 28 Jul 18 May 26 – Jun 16 22–35
Rhubarb Jun 2 365–730
Romanesco Apr 7 Apr 28 May 12 Jul 18 Jul 28 – Sep 8 75–100
Rutabaga Apr 28 Jul 18 Jul 21 – Aug 25 80–100
Salsify Apr 28 Jul 18 Aug 11 – Sep 22 100–130
Savoy Cabbage Apr 7 Apr 28 May 12 Jul 18 Jul 21 – Sep 15 70–110
Scallions Apr 7 Apr 28 May 12 Jul 18 Jul 7 – Aug 4 50–70
Scarlet Runner Beans Mar 24 May 19 May 26 Jul 28 – Sep 1 60–80
Shallot Apr 7 Apr 28 May 12 Jul 18 Aug 11 – Sep 29 90–120
Shiso Mar 24 May 19 May 26 Jul 21 – Sep 15 50–70
Snap Peas Mar 24 May 19 May 26 Jul 21 – Sep 15 55–70
Snow Peas Apr 7 Apr 28 May 12 Jul 18 Jul 7 – Sep 1 50–65
Soybeans May 19 Aug 11 – Oct 6 80–120
Spaghetti Squash Apr 14 May 19 May 26 Aug 25 – Sep 22 85–100
Spinach Apr 7 Apr 28 May 12 Jul 18 Jun 16 – Aug 18 35–50
Squash (Summer) Apr 14 May 19 May 26 Jul 14 – Sep 15 45–65
Squash (Winter) Apr 14 May 19 May 26 Aug 18 – Oct 13 80–120
Sunchoke May 26 Sep 15 – Nov 10 110–150
Sweet Corn May 19 Jul 21 – Sep 1 60–90
Sweet Potatoes Mar 24 May 19 May 26 Aug 25 – Oct 13 90–120
Tatsoi Apr 7 Apr 28 May 12 Jul 18 Jun 16 – Jul 21 35–50
Tomatillo Mar 24 May 19 May 26 Jul 28 – Oct 6 60–85
Tomatoes Mar 24 May 19 May 26 Jul 28 – Oct 6 60–85
Turnip Apr 28 Jul 18 Jun 9 – Jul 14 40–60
Watercress Apr 7 Apr 28 May 12 Jul 18 Jun 23 – Jul 28 40–60
Watermelon Apr 14 May 19 May 26 Aug 4 – Sep 22 70–100
Wax Beans May 19 Jul 14 – Sep 8 50–65
Winter Melon Mar 24 May 19 May 26 Aug 25 – Oct 13 90–120
Yard Long Beans Mar 24 May 19 May 26 Jul 21 – Sep 1 55–80
Zucchini Apr 14 May 19 May 26 Jul 14 – Sep 8 45–60

🍓 Fruits to Grow in Nez Perce County

31 fruits that grow well in Zone 7b with planting dates for Nez Perce County.

Show all 31 fruits with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Alpine Strawberries Jun 2 Sep 1 – Dec 15 90–180
Aronia Jun 2 730–1095
Blackberries Jun 2 365–730
Blueberries Jun 2 730–1095
Boysenberries Jun 2 365–730
Cantaloupe Jun 2 Aug 11 – Sep 15 70–90
Che Fruit Jun 2 1095–1825
Cranberries Jun 2 730–1095
Currants Jun 2 730–1095
Elderberries Jun 2 730–1095
Figs Jun 2 730–1825
Goji Berries Jun 2 730–1095
Gooseberries Jun 2 730–1095
Grapes Jun 2 730–1095
Ground Cherry Jun 2 Aug 11 – Oct 6 65–80
Hardy Kiwi Jun 2 1095–1825
Haskaps Jun 2 730–1095
Honeydew Jun 2 Aug 25 – Oct 6 80–110
Jostaberry Jun 2 730–1095
Kiwi Jun 2 1095–1825
Lingonberries Jun 2 730–1095
Loquat Jun 2 730–1825
Medlar Jun 2 1095–1825
Mulberries Jun 2 730–1825
Pawpaw Jun 2 1095–2555
Persimmon Jun 2 1095–2555
Pomegranate Jun 2 730–1095
Quince Jun 2 1095–1825
Raspberries Jun 2 365–730
Serviceberries Jun 2 730–1095
Strawberries Jun 2 Sep 1 – Jan 12 90–365

🌿 Herbs to Grow in Nez Perce County

36 herbs that grow well in Zone 7b with planting dates for Nez Perce County.

Show all 36 herbs with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Angelica Apr 7 Apr 28 May 5 Jul 18 365–730
Anise Apr 7 Apr 28 May 5 Jul 18 Aug 4 – Oct 20 90–120
Basil Mar 24 May 19 May 26 Jul 21 – Sep 22 50–75
Bee Balm May 19 Aug 18 – Nov 3 90–120
Borage Apr 7 Apr 28 May 5 Jul 18 Jun 30 – Aug 18 50–60
Caraway Apr 7 Apr 28 May 5 Jul 18 365–450
Catnip May 19 Jul 21 – Sep 22 60–80
Chamomile Apr 7 Apr 28 May 5 Jul 18 Jul 7 – Sep 15 60–90
Chervil Apr 7 Apr 28 May 5 Jul 18 Jun 16 – Aug 18 40–60
Chives May 19 Jul 21 – Sep 29 60–90
Cilantro Apr 7 Apr 28 May 5 Jul 18 Jun 16 – Aug 18 40–60
Comfrey May 19 Jul 21 – Sep 29 60–90
Cumin Apr 7 Apr 28 May 5 Jul 18 Aug 18 – Oct 20 100–120
Dill Apr 7 Apr 28 May 5 Jul 18 Jun 16 – Aug 18 40–60
Epazote Mar 24 May 19 May 26 Jul 14 – Sep 8 45–60
Fennel (herb) Apr 7 Apr 28 May 5 Jul 18 Jul 7 – Sep 15 60–90
Feverfew May 19 Aug 18 – Nov 3 90–120
Garlic Chives May 19 Jul 21 – Sep 29 60–90
Horehound May 19 Aug 4 – Sep 29 75–90
Hyssop May 19 Jul 28 – Sep 29 70–90
Lemon Balm May 19 Jul 21 – Sep 8 60–70
Lemon Thyme May 19 Jul 28 – Sep 29 70–90
Lovage May 19 Jul 28 – Sep 29 70–90
Marjoram May 19 Jul 21 – Sep 29 60–90
Mint May 19 Jul 21 – Sep 29 60–90
Oregano May 19 Jul 21 – Sep 29 60–90
Parsley Apr 7 Apr 28 May 5 Jul 18 Jul 7 – Sep 8 60–80
Rosemary May 19 Aug 11 – Dec 29 80–180
Rue May 19 Jul 28 – Sep 29 70–90
Sage May 19 Aug 4 – Sep 29 75–90
Savory May 19 Jul 14 – Sep 8 50–70
Sorrel Apr 7 Apr 28 May 5 Jul 18 Jun 16 – Aug 18 40–60
Tarragon May 19 Jul 21 – Sep 29 60–90
Thai Basil Mar 24 May 19 May 26 Jul 21 – Sep 22 50–75
Thyme May 19 Jul 28 – Sep 29 70–90
Valerian May 19 Sep 22 – Dec 29 120–180

🌸 Flowers to Grow in Nez Perce County

53 flowers that grow well in Zone 7b with planting dates for Nez Perce County.

Show all 53 flowers with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Bloom Days to Maturity
Ageratum Mar 31 May 12 May 12 Jul 7 – Nov 10 60–75
Alliums Aug 22 Sep 19 – Oct 10 28–42
Anemones Aug 1 Aug 15 – Sep 12 90–120
Astilbe Mar 10 May 19 Jul 28 – Sep 22 70–100
Bachelor's Button Mar 31 Apr 7 May 12 Aug 1 Jul 14 – Oct 20 60–90
Begonias Mar 3 May 12 Jul 21 – Nov 24 70–90
Black-eyed Susan Mar 10 May 5 May 19 Jul 28 – Dec 8 60–80
Bleeding Hearts Mar 10 May 19 Jul 7 – Aug 11 60–90
Calendula Mar 31 Apr 7 May 12 Aug 1 Jun 30 – Oct 27 50–70
California Poppy Apr 14 Aug 1 Jun 23 – Sep 15 60–90
Celosia Apr 14 May 12 May 12 Jul 14 – Nov 24 60–90
Columbine Mar 17 May 19 May 19 Jul 7 – Aug 11 70–100
Coreopsis Mar 10 May 12 May 19 Jul 21 – Dec 8 60–80
Cosmos Apr 14 May 5 May 5 Jul 14 – Nov 17 60–90
Crocus Aug 22 Jul 18 – Aug 8 10–20
Daffodils Aug 22 Jul 25 – Aug 15 20–40
Dahlias Apr 21 May 19 May 19 Jul 28 – Dec 15 70–120
Daylily Mar 10 May 19 Jul 28 – Dec 8 60–90
Dianthus Mar 17 Apr 7 Apr 14 Jun 2 – Aug 25 60–80
Echinacea (Purple Coneflower) Mar 10 May 19 May 19 Aug 4 – Dec 8 70–90
Foxglove Mar 17 May 19 May 19 Jul 7 – Aug 11 80–120
Gaillardia (Blanket Flower) Mar 24 May 12 May 12 Jul 21 – Dec 22 70–100
Geraniums Mar 3 May 12 Jul 21 – Nov 24 70–100
Gladiolus May 12 May 12 Jul 21 – Dec 8 70–100
Hostas Mar 3 May 19 Jul 28 – Dec 1 60–90
Hyacinths Aug 22 Aug 15 – Sep 5 14–28
Hydrangeas Mar 3 May 12 Jul 21 – Nov 17 90–150
Impatiens Mar 17 May 12 Jul 21 – Nov 24 60–75
Irises Division May 19 Jul 7 – Aug 11 60–100
Larkspur Apr 14 Jul 18 Jun 23 – Sep 15 60–90
Lavender Mar 10 May 19 Jul 28 – Oct 20 90–120
Lilies Division May 12 Jul 21 – Nov 10 70–120
Lobelia Mar 10 Apr 14 Jun 9 – Aug 18 70–80
Lupine Mar 17 May 19 May 19 Jul 7 – Aug 11 75–100
Marigolds Mar 31 May 12 May 12 Jul 7 – Oct 27 50–70
Nasturtium Apr 14 May 12 May 12 Jul 7 – Nov 24 55–65
Pansy Mar 3 May 5 Jul 18 Jun 30 – Sep 22 70–90
Peonies Division May 19 Jul 14 – Aug 11 90–120
Petunia Mar 17 May 12 Jul 21 – Nov 17 70–90
Phlox Mar 10 May 19 May 19 Jul 28 – Oct 20 80–110
Portulaca Apr 14 May 12 May 12 Jun 30 – Nov 10 50–70
Ranunculus Aug 1 Aug 22 – Sep 19 90–120
Roses Mar 3 May 12 Jul 21 – Dec 1 90–180
Salvia Mar 17 May 12 Jul 21 – Nov 24 70–90
Sedum (Stonecrop) Mar 10 May 19 Sep 8 – Dec 1 60–90
Snapdragon Mar 3 Apr 14 May 5 Aug 1 Jul 14 – Oct 20 70–100
Sunflower Apr 21 May 12 May 12 Aug 4 – Nov 24 70–100
Sweet Alyssum Mar 31 Apr 14 May 12 Aug 15 Jun 23 – Sep 29 45–60
Sweet Pea Aug 1 Oct 10 – Jan 2 65–85
Tulips Aug 22 Aug 8 – Aug 29 15–30
Vinca (Annual) Mar 3 May 12 Jul 21 – Nov 24 70–90
Yarrow Mar 10 May 5 May 19 Jul 21 – Dec 8 60–90
Zinnia Apr 14 May 12 May 12 Jul 21 – Nov 24 60–70

Monthly Planting Guide for Nez Perce County

Gardening Guides & Resources

Helpful guides from The Ultimate Homestead to improve your garden in Nez Perce County.

Frequently Asked Questions

What planting zone is Nez Perce County, ID?

Nez Perce County is in USDA Hardiness Zone 7b. 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 Nez Perce County, ID?

Based on 30 years of NOAA weather station data, the median last spring frost in Nez Perce County falls around May 12. Plan transplants and direct-sow dates relative to this date.

When is the first fall frost in Nez Perce County, ID?

The median first fall frost in Nez Perce County arrives around September 26. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.

🌱

Your Nez Perce County Garden Planner — Free

A 22-page printable planner built for Nez Perce 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.

Instant PDF download. No spam, unsubscribe any time.

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The pairings that make vegetables, herbs, and flowers grow better — and the ones that quietly wreck a bed.

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Composting Guide for Homesteaders

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Turn kitchen scraps and yard waste into compost that actually feeds the garden — instead of a pile that smells, attracts pests, and never breaks down.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates represent 50% probability averages; local conditions vary by elevation and microclimate. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.