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Johnson County, KY — Planting Guide

Johnson County is in USDA Zone 7a. The average last spring frost is April 14 and the first fall frost is October 26, giving you a growing season of approximately 195 days.

At an elevation of 3,308 ft, Johnson County receives approximately 47 in of rainfall annually. Summer highs average 86°F with winter lows around 21°F. The predominant soil type is Silt Loam.

🌡️ Zone

7a (0°F to 5°F min)

❄️ Last Frost

April 14

🍂 First Frost

October 26

📅 Growing Season

195 days

⛰️ Elevation

3,308 ft

🌧️ Annual Rainfall

47 in

Johnson County, KY Moderate season
195 days
Last Spring Frost April 14
195 growing days
First Fall Frost October 26

Johnson County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Zone 7a Frost Countdown
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Last Frost: Apr 14 First Frost: Oct 26

Soil & Growing Conditions in Johnson County

Soil Type

Silt Loam

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

Watering Needs

Moderate rainfall (47 in.) — plan to water 1–2 times per week during the growing season.

Season Tips

195-day frost-free season

Plenty of time for warm-season crops. Start heat-lovers indoors 6–8 weeks before last frost to maximise your harvest window.

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.

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Recommended for Your Garden

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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 Johnson County

112 vegetables that grow well in Zone 7a with planting dates for Johnson County.

Show all 112 vegetables with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Acorn Squash Mar 17 Apr 21 Apr 28 Jul 21 – Aug 25 80–100
Amaranth Feb 24 Apr 21 Apr 28 Jul 28 – Sep 15 90–120
Artichoke Apr 28 Sep 1 – Nov 10 120–180
Arugula Mar 10 Mar 31 Apr 14 Aug 17 May 19 – Jul 21 30–50
Asparagus Apr 28 730–1095
Beets Mar 31 Aug 17 May 26 – Jun 23 50–70
Belgian Endive Mar 10 Mar 31 Apr 14 Aug 17 Aug 4 – Sep 29 110–150
Bitter Melon Feb 24 Apr 21 Apr 28 Jun 30 – Aug 11 60–90
Black Beans Apr 21 Jul 21 – Sep 8 90–120
Bok Choy Mar 10 Mar 31 Apr 14 Aug 17 May 26 – Jun 30 40–60
Broccoli Mar 10 Mar 31 Apr 14 Aug 17 Jun 16 – Jul 28 60–90
Broccoli Rabe Mar 10 Mar 31 Apr 14 Aug 17 May 26 – Jun 30 40–60
Brussels Sprouts Mar 10 Mar 31 Apr 14 Aug 17 Jul 14 – Sep 8 90–130
Butternut Squash Mar 17 Apr 21 Apr 28 Jul 28 – Sep 1 85–110
Cabbage Mar 10 Mar 31 Apr 14 Aug 17 Jun 16 – Aug 11 60–100
Calabash Feb 24 Apr 21 Apr 28 Jul 21 – Sep 15 80–120
Cardoon Apr 28 Sep 1 – Oct 13 120–150
Carrots Mar 31 Aug 17 Jun 2 – Jul 7 60–80
Cauliflower Mar 10 Mar 31 Apr 14 Aug 17 Jun 9 – Aug 11 55–100
Celeriac Mar 10 Mar 31 Apr 14 Aug 17 Jul 28 – Sep 1 100–120
Celery Mar 10 Mar 31 Apr 14 Aug 17 Jul 7 – Sep 1 80–120
Celtuce Mar 10 Mar 31 Apr 14 Aug 17 Jun 16 – Jul 28 60–90
Chard Mar 10 Mar 31 Apr 14 Aug 17 Jun 9 – Jul 28 50–60
Chayote Feb 24 Apr 21 Apr 28 Sep 1 – Nov 10 120–180
Chickpeas Mar 10 Mar 31 Apr 14 Aug 17 Jul 7 – Aug 18 80–110
Chicory Mar 10 Mar 31 Apr 14 Aug 17 Jun 16 – Jul 28 60–85
Chinese Cabbage Mar 10 Mar 31 Apr 14 Aug 17 Jun 9 – Jul 7 50–70
Christmas Lima Beans Feb 24 Apr 21 Apr 28 Jul 21 – Aug 25 80–100
Collard Greens Mar 10 Mar 31 Apr 14 Aug 17 Jun 9 – Aug 11 55–75
Corn Apr 21 Jun 23 – Aug 18 60–100
Cowpeas Apr 21 Jun 23 – Aug 4 60–90
Cress Mar 10 Mar 31 Apr 14 Aug 17 Apr 28 – May 19 14–21
Crookneck Squash Mar 17 Apr 21 Apr 28 Jun 16 – Jul 14 45–60
Crosne Mar 31 Aug 17 Sep 1 – Nov 3 150–200
Cucumber Mar 17 Apr 21 Apr 28 Jun 23 – Aug 18 50–70
Daikon Mar 31 Aug 17 May 26 – Jun 23 50–70
Delicata Squash Mar 17 Apr 21 Apr 28 Jul 21 – Aug 25 80–100
Edamame Apr 21 Jul 7 – Aug 18 75–100
Eggplant Feb 10 Apr 21 Apr 28 Jul 7 – Sep 8 65–85
Endive Mar 10 Mar 31 Apr 14 Aug 17 Jun 2 – Jul 7 45–65
Escarole Mar 10 Mar 31 Apr 14 Aug 17 Jun 9 – Jul 7 50–70
Fava Beans Mar 10 Mar 31 Apr 14 Aug 17 Jun 30 – Aug 11 75–100
Fennel Feb 24 Apr 21 Apr 28 Jun 30 – Aug 11 60–90
Garlic Sep 14 Dec 14 – Apr 26 90–240
Green Beans Apr 21 Jun 16 – Aug 11 50–65
Horseradish Apr 28 Sep 1 – Nov 10 120–180
Hot Peppers Feb 10 Apr 21 Apr 28 Jul 7 – Oct 13 70–120
Hubbard Squash Mar 17 Apr 21 Apr 28 Aug 11 – Sep 15 100–120
Jicama Feb 24 Apr 21 Apr 28 Sep 1 – Nov 10 120–180
Kabocha Mar 17 Apr 21 Apr 28 Jul 28 – Aug 25 85–100
Kai Lan Mar 10 Mar 31 Apr 14 Aug 17 Jun 2 – Jun 30 45–60
Kale Mar 10 Mar 31 Apr 14 Aug 17 Jun 9 – Aug 4 50–70
Kidney Beans Apr 21 Jul 21 – Aug 25 85–110
Kohlrabi Mar 10 Mar 31 Apr 14 Aug 17 Jun 2 – Jul 7 45–65
Komatsuna Mar 10 Mar 31 Apr 14 Aug 17 May 19 – Jun 23 35–50
Leeks Mar 10 Mar 31 Apr 14 Aug 17 Jul 14 – Sep 29 90–150
Lentils Mar 10 Mar 31 Apr 14 Aug 17 Jul 7 – Aug 18 80–110
Lettuce Mar 10 Mar 31 Apr 14 Aug 17 May 19 – Jul 28 30–60
Lima Beans Apr 21 Jun 23 – Aug 4 60–90
Loofah Feb 24 Apr 21 Apr 28 Aug 11 – Oct 13 100–150
Luffa Feb 24 Apr 21 Apr 28 Jul 28 – Oct 13 90–150
Mache Mar 10 Mar 31 Apr 14 Aug 17 May 26 – Jun 30 40–60
Malabar Spinach Feb 24 Apr 21 Apr 28 Jun 23 – Jul 21 55–70
Melon Mar 17 Apr 21 Apr 28 Jul 7 – Aug 25 70–100
Microgreens Mar 10 Mar 31 Apr 14 Aug 17 Apr 21 – May 19 7–21
Mitsuba Mar 10 Mar 31 Apr 7 Aug 17 Jun 2 – Jul 28 50–70
Mizuna Mar 10 Mar 31 Apr 14 Aug 17 May 19 – Jun 16 30–45
Mustard Greens Mar 10 Mar 31 Apr 14 Aug 17 May 19 – Jul 21 30–50
Napa Cabbage Mar 10 Mar 31 Apr 14 Aug 17 Jun 9 – Jul 14 55–75
New Zealand Spinach Feb 24 Apr 21 Apr 28 Jun 23 – Jul 21 55–70
Okra Feb 24 Apr 21 Apr 28 Jun 23 – Aug 18 50–65
Onion Mar 10 Mar 31 Apr 14 Aug 17 Jul 14 – Sep 1 90–120
Pac Choi Mar 10 Mar 31 Apr 14 Aug 17 May 26 – Jun 23 40–55
Parsnip Mar 31 Aug 17 Jul 14 – Aug 25 100–130
Patty Pan Squash Mar 17 Apr 21 Apr 28 Jun 16 – Jul 14 45–60
Peas Mar 10 Mar 31 Apr 14 Aug 17 Jun 9 – Aug 4 55–70
Peppers Feb 10 Apr 21 Apr 28 Jun 30 – Sep 8 60–90
Pole Beans Feb 24 Apr 21 Apr 28 Jun 23 – Aug 18 55–70
Potatoes Feb 24 Apr 21 Apr 28 Jul 7 – Sep 15 70–120
Pumpkin Mar 17 Apr 21 Apr 28 Jul 28 – Sep 15 85–120
Purslane Mar 10 Mar 31 Apr 14 Aug 17 May 26 – Jun 30 40–60
Radicchio Mar 10 Mar 31 Apr 14 Aug 17 Jun 16 – Jul 21 60–80
Radish Mar 31 Aug 17 Apr 28 – May 19 22–35
Rhubarb May 5 365–730
Romanesco Mar 10 Mar 31 Apr 14 Aug 17 Jun 30 – Aug 11 75–100
Rutabaga Mar 31 Aug 17 Jun 23 – Jul 28 80–100
Salsify Mar 31 Aug 17 Jul 14 – Aug 25 100–130
Savoy Cabbage Mar 10 Mar 31 Apr 14 Aug 17 Jun 23 – Aug 18 70–110
Scallions Mar 10 Mar 31 Apr 14 Aug 17 Jun 9 – Jul 7 50–70
Scarlet Runner Beans Feb 24 Apr 21 Apr 28 Jun 30 – Aug 4 60–80
Shallot Mar 10 Mar 31 Apr 14 Aug 17 Jul 14 – Sep 1 90–120
Shiso Feb 24 Apr 21 Apr 28 Jun 23 – Aug 18 50–70
Snap Peas Feb 24 Apr 21 Apr 28 Jun 23 – Aug 18 55–70
Snow Peas Mar 10 Mar 31 Apr 14 Aug 17 Jun 9 – Aug 4 50–65
Soybeans Apr 21 Jul 14 – Sep 8 80–120
Spaghetti Squash Mar 17 Apr 21 Apr 28 Jul 28 – Aug 25 85–100
Spinach Mar 10 Mar 31 Apr 14 Aug 17 May 19 – Jul 21 35–50
Squash (Summer) Mar 17 Apr 21 Apr 28 Jun 16 – Aug 18 45–65
Squash (Winter) Mar 17 Apr 21 Apr 28 Jul 21 – Sep 15 80–120
Sunchoke Apr 28 Aug 18 – Oct 13 110–150
Sweet Corn Apr 21 Jun 23 – Aug 4 60–90
Sweet Potatoes Feb 24 Apr 21 Apr 28 Jul 28 – Sep 15 90–120
Tatsoi Mar 10 Mar 31 Apr 14 Aug 17 May 19 – Jun 23 35–50
Tomatillo Feb 24 Apr 21 Apr 28 Jun 30 – Sep 8 60–85
Tomatoes Feb 24 Apr 21 Apr 28 Jun 30 – Sep 8 60–85
Turnip Mar 31 Aug 17 May 12 – Jun 16 40–60
Watercress Mar 10 Mar 31 Apr 14 Aug 17 May 26 – Jun 30 40–60
Watermelon Mar 17 Apr 21 Apr 28 Jul 7 – Aug 25 70–100
Wax Beans Apr 21 Jun 16 – Aug 11 50–65
Winter Melon Feb 24 Apr 21 Apr 28 Jul 28 – Sep 15 90–120
Yard Long Beans Feb 24 Apr 21 Apr 28 Jun 23 – Aug 4 55–80
Zucchini Mar 17 Apr 21 Apr 28 Jun 16 – Aug 11 45–60

🍓 Fruits to Grow in Johnson County

31 fruits that grow well in Zone 7a with planting dates for Johnson County.

Show all 31 fruits with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Alpine Strawberries May 5 Aug 4 – Nov 17 90–180
Aronia May 5 730–1095
Blackberries May 5 365–730
Blueberries May 5 730–1095
Boysenberries May 5 365–730
Cantaloupe May 5 Jul 14 – Aug 18 70–90
Che Fruit May 5 1095–1825
Cranberries May 5 730–1095
Currants May 5 730–1095
Elderberries May 5 730–1095
Figs May 5 730–1825
Goji Berries May 5 730–1095
Gooseberries May 5 730–1095
Grapes May 5 730–1095
Ground Cherry May 5 Jul 14 – Sep 8 65–80
Hardy Kiwi May 5 1095–1825
Haskaps May 5 730–1095
Honeydew May 5 Jul 28 – Sep 8 80–110
Jostaberry May 5 730–1095
Kiwi May 5 1095–1825
Lingonberries May 5 730–1095
Loquat May 5 730–1825
Medlar May 5 1095–1825
Mulberries May 5 730–1825
Pawpaw May 5 1095–2555
Persimmon May 5 1095–2555
Pomegranate May 5 730–1095
Quince May 5 1095–1825
Raspberries May 5 365–730
Serviceberries May 5 730–1095
Strawberries May 5 Aug 4 – Dec 15 90–365

🌿 Herbs to Grow in Johnson County

36 herbs that grow well in Zone 7a with planting dates for Johnson County.

Show all 36 herbs with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Angelica Mar 10 Mar 31 Apr 7 Aug 17 365–730
Anise Mar 10 Mar 31 Apr 7 Aug 17 Jul 7 – Sep 22 90–120
Basil Feb 24 Apr 21 Apr 28 Jun 23 – Aug 25 50–75
Bee Balm Apr 21 Jul 21 – Oct 6 90–120
Borage Mar 10 Mar 31 Apr 7 Aug 17 Jun 2 – Jul 21 50–60
Caraway Mar 10 Mar 31 Apr 7 Aug 17 365–450
Catnip Apr 21 Jun 23 – Aug 25 60–80
Chamomile Mar 10 Mar 31 Apr 7 Aug 17 Jun 9 – Aug 18 60–90
Chervil Mar 10 Mar 31 Apr 7 Aug 17 May 19 – Jul 21 40–60
Chives Apr 21 Jun 23 – Sep 1 60–90
Cilantro Mar 10 Mar 31 Apr 7 Aug 17 May 19 – Jul 21 40–60
Comfrey Apr 21 Jun 23 – Sep 1 60–90
Cumin Mar 10 Mar 31 Apr 7 Aug 17 Jul 21 – Sep 22 100–120
Dill Mar 10 Mar 31 Apr 7 Aug 17 May 19 – Jul 21 40–60
Epazote Feb 24 Apr 21 Apr 28 Jun 16 – Aug 11 45–60
Fennel (herb) Mar 10 Mar 31 Apr 7 Aug 17 Jun 9 – Aug 18 60–90
Feverfew Apr 21 Jul 21 – Oct 6 90–120
Garlic Chives Apr 21 Jun 23 – Sep 1 60–90
Horehound Apr 21 Jul 7 – Sep 1 75–90
Hyssop Apr 21 Jun 30 – Sep 1 70–90
Lemon Balm Apr 21 Jun 23 – Aug 11 60–70
Lemon Thyme Apr 21 Jun 30 – Sep 1 70–90
Lovage Apr 21 Jun 30 – Sep 1 70–90
Marjoram Apr 21 Jun 23 – Sep 1 60–90
Mint Apr 21 Jun 23 – Sep 1 60–90
Oregano Apr 21 Jun 23 – Sep 1 60–90
Parsley Mar 10 Mar 31 Apr 7 Aug 17 Jun 9 – Aug 11 60–80
Rosemary Apr 21 Jul 14 – Dec 1 80–180
Rue Apr 21 Jun 30 – Sep 1 70–90
Sage Apr 21 Jul 7 – Sep 1 75–90
Savory Apr 21 Jun 16 – Aug 11 50–70
Sorrel Mar 10 Mar 31 Apr 7 Aug 17 May 19 – Jul 21 40–60
Tarragon Apr 21 Jun 23 – Sep 1 60–90
Thai Basil Feb 24 Apr 21 Apr 28 Jun 23 – Aug 25 50–75
Thyme Apr 21 Jun 30 – Sep 1 70–90
Valerian Apr 21 Aug 25 – Dec 1 120–180

🌸 Flowers to Grow in Johnson County

53 flowers that grow well in Zone 7a with planting dates for Johnson County.

Show all 53 flowers with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Bloom Days to Maturity
Ageratum Mar 3 Apr 14 Apr 14 Jun 9 – Sep 29 60–75
Alliums Sep 21 Oct 19 – Nov 9 28–42
Anemones Aug 31 Sep 14 – Oct 12 90–120
Astilbe Feb 10 Apr 21 Jun 30 – Aug 25 70–100
Bachelor's Button Mar 3 Mar 10 Apr 14 Aug 31 Jun 16 – Sep 15 60–90
Begonias Feb 3 Apr 14 Jun 23 – Oct 13 70–90
Black-eyed Susan Feb 10 Apr 14 Apr 21 Jun 30 – Nov 3 60–80
Bleeding Hearts Feb 10 Apr 21 Jun 9 – Jul 14 60–90
Calendula Mar 3 Mar 10 Apr 14 Aug 31 Jun 2 – Sep 15 50–70
California Poppy Mar 17 Aug 31 May 26 – Aug 4 60–90
Celosia Mar 17 Apr 14 Apr 14 Jun 16 – Oct 13 60–90
Columbine Feb 17 Apr 21 Apr 21 Jun 9 – Jul 14 70–100
Coreopsis Feb 10 Apr 14 Apr 21 Jun 23 – Nov 3 60–80
Cosmos Mar 17 Apr 14 Apr 14 Jun 23 – Oct 13 60–90
Crocus Sep 21 Aug 17 – Sep 7 10–20
Daffodils Sep 21 Aug 24 – Sep 14 20–40
Dahlias Mar 17 Apr 21 Apr 21 Jun 30 – Nov 3 70–120
Daylily Feb 10 Apr 21 Jun 30 – Nov 3 60–90
Dianthus Feb 17 Mar 10 Mar 24 May 12 – Aug 11 60–80
Echinacea (Purple Coneflower) Feb 10 Apr 21 Apr 21 Jul 7 – Nov 3 70–90
Foxglove Feb 17 Apr 21 Apr 21 Jun 9 – Jul 14 80–120
Gaillardia (Blanket Flower) Feb 24 Apr 21 Apr 21 Jun 30 – Nov 17 70–100
Geraniums Feb 3 Apr 14 Jun 23 – Oct 13 70–100
Gladiolus Apr 14 Apr 14 Jun 23 – Oct 27 70–100
Hostas Feb 3 Apr 21 Jun 30 – Nov 3 60–90
Hyacinths Sep 21 Sep 14 – Oct 5 14–28
Hydrangeas Feb 3 Apr 21 Jun 30 – Oct 20 90–150
Impatiens Feb 17 Apr 21 Jun 30 – Oct 20 60–75
Irises Division Apr 21 Jun 9 – Jul 14 60–100
Larkspur Mar 17 Aug 17 May 26 – Aug 4 60–90
Lavender Feb 10 Apr 28 Jul 7 – Sep 15 90–120
Lilies Division Apr 21 Jun 30 – Oct 20 70–120
Lobelia Feb 10 Mar 24 May 19 – Aug 11 70–80
Lupine Feb 17 Apr 21 Apr 21 Jun 9 – Jul 14 75–100
Marigolds Mar 3 Apr 14 Apr 14 Jun 9 – Sep 15 50–70
Nasturtium Mar 17 Apr 14 Apr 14 Jun 9 – Oct 13 55–65
Pansy Feb 3 Apr 14 Aug 17 Jun 9 – Aug 18 70–90
Peonies Division Apr 21 Jun 16 – Jul 21 90–120
Petunia Feb 17 Apr 21 Jun 30 – Oct 20 70–90
Phlox Feb 10 Apr 21 Apr 21 Jun 30 – Sep 22 80–110
Portulaca Mar 17 Apr 14 Apr 14 Jun 2 – Sep 29 50–70
Ranunculus Aug 31 Sep 28 – Oct 26 90–120
Roses Feb 3 Apr 21 Jun 30 – Nov 3 90–180
Salvia Feb 17 Apr 14 Jun 23 – Oct 13 70–90
Sedum (Stonecrop) Feb 10 Apr 21 Aug 11 – Nov 3 60–90
Snapdragon Feb 3 Mar 17 Apr 14 Aug 31 Jun 23 – Sep 15 70–100
Sunflower Mar 24 Apr 14 Apr 14 Jul 7 – Oct 13 70–100
Sweet Alyssum Mar 3 Mar 17 Apr 14 Sep 14 May 26 – Aug 18 45–60
Sweet Pea Mar 10 Aug 31 May 19 – Aug 11 65–85
Tulips Sep 21 Sep 7 – Sep 28 15–30
Vinca (Annual) Feb 3 Apr 14 Jun 23 – Oct 13 70–90
Yarrow Feb 10 Apr 14 Apr 21 Jun 23 – Nov 3 60–90
Zinnia Mar 17 Apr 14 Apr 14 Jun 23 – Oct 13 60–70

Monthly Planting Guide for Johnson County

Gardening Guides & Resources

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

Frequently Asked Questions

What planting zone is Johnson County, KY?

Johnson County is in USDA Hardiness Zone 7a. 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 Johnson County, KY?

Based on 30 years of NOAA weather station data, the median last spring frost in Johnson County falls around April 14. Plan transplants and direct-sow dates relative to this date.

When is the first fall frost in Johnson County, KY?

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

🌱

Your Johnson County Garden Planner — Free

A 22-page printable planner built for Johnson County (Zone 7a). 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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Composting Guide for Homesteaders

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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: July 2026.

Sources & credits

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