Henry County, TN — Planting Guide
Henry County is in USDA Zone 7a. The average last spring frost is April 6 and the first fall frost is October 28, giving you a growing season of approximately 205 days.
At an elevation of 1,382 ft, Henry County receives approximately 40.8 in of rainfall annually. Summer highs average 90°F with winter lows around 34°F. The predominant soil type is Silt Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 33 days year to year — ranging from March 17 in warm years to April 19 in cold years. The growing season is trending longer by about 0.68 days per decade. Henry County scores 65/100 (Good) on the Microclimate Index.
🌡️ Zone
7a (0°F to 5°F min)
❄️ Last Frost
April 6
🍂 First Frost
October 28
📅 Growing Season
205 days
⛰️ Elevation
1,382 ft
🌧️ Annual Rainfall
40.8 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 | 3.9 in | 11 days | — | None |
| Feb | 3.7 in | 8 days | — | None |
| Mar | 3.4 in | 10 days | 0.9 in | Moderate |
| Apr | 3.5 in | 7 days | 0.8 in | Moderate |
| May | 2.8 in | 9 days | 1.5 in | Moderate |
| Jun | 3.2 in | 12 days | 1.1 in | Moderate |
| Jul | 4.2 in | 12 days | 0.1 in | Low |
| Aug | 3.9 in | 10 days | 0.4 in | Low |
| Sep | 3.2 in | 8 days | 1.1 in | Moderate |
| Oct | 2.4 in | 7 days | 1.9 in | High |
| Nov | 3.5 in | 8 days | — | None |
| Dec | 3.1 in | 9 days | — | None |
Annual total: 40.8 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.
Henry County Soil Profile
Soil Type
Silt Loam
Soil pH
5.8-7.1
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) | Apr 19 | Nov 13 | 208 days |
| Cautious | Apr 14 | Nov 1 | 201 days |
| Average year | Apr 6 | Oct 28 | 205 days |
| Optimistic | Mar 30 | Oct 21 | 205 days |
| Aggressive (risky) | Mar 17 | Oct 12 | 209 days |
Not very — frost dates can vary by ±33 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 longer (0.7 days/decade). Historical frost dates are still reliable for planning.
Gardening Difficulty Score
Henry County offers good growing conditions. A little planning around frost dates goes a long way.
Local Gardening Help in Henry 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 Henry County's climate and soil.
County Extension Office
Henry County University of Tennessee Extension Extension Office
Phone: 865-974-7114
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 Henry County
Finding local nurseries & garden centers in Henry County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Henry 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 Henry County TN" or "garden center Henry 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 Henry County TN" or check your extension office and local parks department. Facebook groups like "Henry County Gardeners" or "Tennessee 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
14.5 hours
Summer solstice daylight
Shortest Day
9.5 hours
Winter solstice daylight
Peak Sun Hours
8.5 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: Day-neutral onion varieties like Candy, Cabernet, and Sierra Blanca perform best in your day-length range.
View detailed monthly data
| Month | Daylight Hours | Peak Sun Hours | Day Length |
|---|---|---|---|
| January | 9.8 hr | 5.1 hr | Short day |
| February | 10.7 hr | 5.8 hr | Short day |
| March | 11.7 hr | 6.7 hr | Short day |
| April | 12.9 hr | 7.5 hr | Neutral |
| May | 13.9 hr | 8.2 hr | Neutral |
| June | 14.5 hr | 8.5 hr | Long day |
| July | 14.2 hr | 8.1 hr | Long day |
| August | 13.4 hr | 7.1 hr | Neutral |
| September | 12.2 hr | 6.7 hr | Neutral |
| October | 11 hr | 7 hr | Short day |
| November | 10 hr | 5.3 hr | Short day |
| December | 9.5 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 May through Oct.
Best Month to Compost
Jun
Microbial activity peaks when soil is warm.
Active Composting
8 months
Nearly year-round composting.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 39°F | 46°F | ❄️ Dormant | ~36 weeks |
| Feb | 39°F | 42°F | ❄️ Dormant | ~36 weeks |
| Mar | 43°F | 48°F | 🐢 Slow | ~24 weeks |
| Apr | 58°F | 54°F | ♻️ Active | ~14 weeks |
| May | 65°F | 65°F | ♻️ Active | ~14 weeks |
| Jun | 75°F | 74°F | 🔥 Peak | ~8 weeks |
| Jul | 84°F | 79°F | 🔥 Peak | ~8 weeks |
| Aug | 86°F | 81°F | 🔥 Peak | ~8 weeks |
| Sep | 80°F | 78°F | 🔥 Peak | ~8 weeks |
| Oct | 67°F | 71°F | 🔥 Peak | ~8 weeks |
| Nov | 56°F | 60°F | ♻️ Active | ~14 weeks |
| Dec | 42°F | 51°F | 🐢 Slow | ~24 weeks |
Highlighted rows = soil 60°F+ (safe for warm-season transplants). Compost finishes fastest during peak activity months.
Pest & Disease Pressure in Henry County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
Insect Pest Pressure
High — expect multiple pest generations. Preventative measures essential.
Disease Risk
High fungal/bacterial risk. Space plants for airflow, water at soil level.
Seasonal Risk
View 6 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | High | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
| Japanese beetles | Moderate | Jun, Jul, Aug |
| Squash vine borers | Moderate | May, Jun, Jul |
| Stink bugs | High | May, Jun, Jul, Aug, Sep |
| Whiteflies | Moderate | Jun, Jul, Aug, Sep |
| Spider mites | Moderate | Jul, Aug |
Organic pest management tips
- Install physical barriers: floating row covers, copper tape for slugs, mesh netting
- Apply Bt (Bacillus thuringiensis) for caterpillar control — safe for beneficial insects
- Use kaolin clay spray to deter a wide range of insects on fruiting crops
- Release beneficial insects: ladybugs for aphids, parasitic wasps for caterpillars
- Apply neem oil weekly during high-pressure months
- Mulch heavily (3-4 inches) to reduce soil-borne disease splash
Cover Crops for Henry County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with county-specific planting dates.
Spring Cover Crops (4 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | Apr 9 | Aug 19 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Cowpeas (southern peas) | Apr 17 | Aug 19 | ✓ Yes | Excellent nitrogen fixer for warm climates, edible |
| Sorghum-sudan grass | Apr 12 | Aug 26 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Mar 7 | Sep 2 | ✓ 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 | Apr 22 | Oct 7 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (7 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Austrian winter peas | Aug 28 | Mar 23 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Crimson clover | Aug 30 | Mar 23 | ✓ Yes | Fixes nitrogen, attracts pollinators in spring |
| Daikon radish | Aug 30 | Mar 16 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Aug 6 | Mar 23 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 14 | Mar 16 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Aug 3 | Mar 23 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Aug 8 | Mar 16 | — | 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: 11 mph Summer: 8 mph
Fall: 9 mph Winter: 8 mph
Prevailing wind: SW. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
2.5/10
Low need — wind is not a major factor in your garden planning.
Frost Pocket Risk
Moderate
Some terrain variation (429 ft range). Garden on slopes or higher ground if possible to avoid late-season frost pockets.
Rainwater Harvesting Potential
How much water you can collect, when to collect it, and what size system you need for your garden.
Annual Collection
20,334 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 1,000 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
Jan, Feb, Jul, Aug
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
May, Oct, 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 40.8 inches of rain per year
- A 1,000 sq ft roof can collect roughly 20,334 gallons annually
- Rainwater harvesting is fully legal in your state
- Stock up on stored water before your dry season (May, Oct, Dec)
- Use a first-flush diverter to keep roof debris out of your collection
Soil & Growing Conditions in Henry County
Soil Type
Silt Loam
Soil pH 5.8–7.1 · Somewhat Poorly Drained drainage
Good candidate for raised beds to maximise drainage and extend the season.
Watering Needs
Drought stress: 3.5/10
Low-to-moderate drought stress. Plan to water 1–2 times per week during peak summer. (40.8 in. annual rainfall)
Season Tips
205-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.
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 Henry County
113 vegetables that grow well in Zone 7a with planting dates for Henry County.
Show all 113 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Mar 9 | Apr 13 | Apr 20 | Jul 13 – Aug 17 | 80–100 |
| Amaranth | Feb 16 | Apr 13 | Apr 20 | Jul 20 – Sep 7 | 90–120 |
| Artichoke | — | — | Apr 20 | Aug 24 – Nov 2 | 120–180 |
| Arugula | Mar 2 | Mar 23 | Apr 6 | May 11 – Jul 13 | 30–50 |
| Asparagus | — | — | Apr 20 | — | 730–1095 |
| Beets | — | Mar 23 | — | May 18 – Jun 15 | 50–70 |
| Belgian Endive | Mar 2 | Mar 23 | Apr 6 | Jul 27 – Sep 21 | 110–150 |
| Bitter Melon | Feb 16 | Apr 13 | Apr 20 | Jun 22 – Aug 3 | 60–90 |
| Black Beans | — | Apr 13 | — | Jul 13 – Aug 31 | 90–120 |
| Bok Choy | Mar 2 | Mar 23 | Apr 6 | May 18 – Jun 22 | 40–60 |
| Broccoli | Mar 2 | Mar 23 | Apr 6 | Jun 8 – Jul 20 | 60–90 |
| Broccoli Rabe | Mar 2 | Mar 23 | Apr 6 | May 18 – Jun 22 | 40–60 |
| Brussels Sprouts | Mar 2 | Mar 23 | Apr 6 | Jul 6 – Aug 31 | 90–130 |
| Butternut Squash | Mar 9 | Apr 13 | Apr 20 | Jul 20 – Aug 24 | 85–110 |
| Cabbage | Mar 2 | Mar 23 | Apr 6 | Jun 8 – Aug 3 | 60–100 |
| Calabash | Feb 16 | Apr 13 | Apr 20 | Jul 13 – Sep 7 | 80–120 |
| Cardoon | — | — | Apr 20 | Aug 24 – Oct 5 | 120–150 |
| Carrots | — | Mar 23 | — | May 25 – Jun 29 | 60–80 |
| Cauliflower | Mar 2 | Mar 23 | Apr 6 | Jun 1 – Aug 3 | 55–100 |
| Celeriac | Mar 2 | Mar 23 | Apr 6 | Jul 20 – Aug 24 | 100–120 |
| Celery | Mar 2 | Mar 23 | Apr 6 | Jun 29 – Aug 24 | 80–120 |
| Celtuce | Mar 2 | Mar 23 | Apr 6 | Jun 8 – Jul 20 | 60–90 |
| Chard | Mar 2 | Mar 23 | Apr 6 | Jun 1 – Jul 20 | 50–60 |
| Chayote | Feb 16 | Apr 13 | Apr 20 | Aug 24 – Nov 2 | 120–180 |
| Chickpeas | Mar 2 | Mar 23 | Apr 6 | Jun 29 – Aug 10 | 80–110 |
| Chicory | Mar 2 | Mar 23 | Apr 6 | Jun 8 – Jul 20 | 60–85 |
| Chinese Cabbage | Mar 2 | Mar 23 | Apr 6 | Jun 1 – Jun 29 | 50–70 |
| Christmas Lima Beans | Feb 16 | Apr 13 | Apr 20 | Jul 13 – Aug 17 | 80–100 |
| Collard Greens | Mar 2 | Mar 23 | Apr 6 | Jun 1 – Aug 3 | 55–75 |
| Corn | — | Apr 13 | — | Jun 15 – Aug 10 | 60–100 |
| Cowpeas | — | Apr 13 | — | Jun 15 – Jul 27 | 60–90 |
| Cress | Mar 2 | Mar 23 | Apr 6 | Apr 20 – May 11 | 14–21 |
| Crookneck Squash | Mar 9 | Apr 13 | Apr 20 | Jun 8 – Jul 6 | 45–60 |
| Crosne | — | Mar 23 | — | Aug 24 – Oct 26 | 150–200 |
| Cucumber | Mar 9 | Apr 13 | Apr 20 | Jun 15 – Aug 10 | 50–70 |
| Daikon | — | Mar 23 | — | May 18 – Jun 15 | 50–70 |
| Delicata Squash | Mar 9 | Apr 13 | Apr 20 | Jul 13 – Aug 17 | 80–100 |
| Edamame | — | Apr 13 | — | Jun 29 – Aug 10 | 75–100 |
| Eggplant | Feb 2 | Apr 13 | Apr 20 | Jun 29 – Aug 31 | 65–85 |
| Endive | Mar 2 | Mar 23 | Apr 6 | May 25 – Jun 29 | 45–65 |
| Escarole | Mar 2 | Mar 23 | Apr 6 | Jun 1 – Jun 29 | 50–70 |
| Fava Beans | Mar 2 | Mar 23 | Apr 6 | Jun 22 – Aug 3 | 75–100 |
| Fennel | Feb 16 | Apr 13 | Apr 20 | Jun 22 – Aug 3 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Green Beans | — | Apr 13 | — | Jun 8 – Aug 3 | 50–65 |
| Horseradish | — | — | Apr 20 | Aug 24 – Nov 2 | 120–180 |
| Hot Peppers | Feb 2 | Apr 13 | Apr 20 | Jun 29 – Oct 5 | 70–120 |
| Hubbard Squash | Mar 9 | Apr 13 | Apr 20 | Aug 3 – Sep 7 | 100–120 |
| Jicama | Feb 16 | Apr 13 | Apr 20 | Aug 24 – Nov 2 | 120–180 |
| Kabocha | Mar 9 | Apr 13 | Apr 20 | Jul 20 – Aug 17 | 85–100 |
| Kai Lan | Mar 2 | Mar 23 | Apr 6 | May 25 – Jun 22 | 45–60 |
| Kale | Mar 2 | Mar 23 | Apr 6 | Jun 1 – Jul 27 | 50–70 |
| Kidney Beans | — | Apr 13 | — | Jul 13 – Aug 17 | 85–110 |
| Kohlrabi | Mar 2 | Mar 23 | Apr 6 | May 25 – Jun 29 | 45–65 |
| Komatsuna | Mar 2 | Mar 23 | Apr 6 | May 11 – Jun 15 | 35–50 |
| Leeks | Mar 2 | Mar 23 | Apr 6 | Jul 6 – Sep 21 | 90–150 |
| Lentils | Mar 2 | Mar 23 | Apr 6 | Jun 29 – Aug 10 | 80–110 |
| Lettuce | Mar 2 | Mar 23 | Apr 6 | May 11 – Jul 20 | 30–60 |
| Lima Beans | — | Apr 13 | — | Jun 15 – Jul 27 | 60–90 |
| Loofah | Feb 16 | Apr 13 | Apr 20 | Aug 3 – Oct 5 | 100–150 |
| Luffa | Feb 16 | Apr 13 | Apr 20 | Jul 20 – Oct 5 | 90–150 |
| Mache | Mar 2 | Mar 23 | Apr 6 | May 18 – Jun 22 | 40–60 |
| Malabar Spinach | Feb 16 | Apr 13 | Apr 20 | Jun 15 – Jul 13 | 55–70 |
| Melon | Mar 9 | Apr 13 | Apr 20 | Jun 29 – Aug 17 | 70–100 |
| Microgreens | Mar 2 | Mar 23 | Apr 6 | Apr 13 – May 11 | 7–21 |
| Mitsuba | Mar 2 | Mar 23 | Mar 30 | May 25 – Jul 20 | 50–70 |
| Mizuna | Mar 2 | Mar 23 | Apr 6 | May 11 – Jun 8 | 30–45 |
| Mustard Greens | Mar 2 | Mar 23 | Apr 6 | May 11 – Jul 13 | 30–50 |
| Napa Cabbage | Mar 2 | Mar 23 | Apr 6 | Jun 1 – Jul 6 | 55–75 |
| New Zealand Spinach | Feb 16 | Apr 13 | Apr 20 | Jun 15 – Jul 13 | 55–70 |
| Okra | Feb 16 | Apr 13 | Apr 20 | Jun 15 – Aug 10 | 50–65 |
| Onion | Mar 2 | Mar 23 | Apr 6 | Jul 6 – Aug 24 | 90–120 |
| Pac Choi | Mar 2 | Mar 23 | Apr 6 | May 18 – Jun 15 | 40–55 |
| Parsnip | — | Mar 23 | — | Jul 6 – Aug 17 | 100–130 |
| Patty Pan Squash | Mar 9 | Apr 13 | Apr 20 | Jun 8 – Jul 6 | 45–60 |
| Peas | Mar 2 | Mar 23 | Apr 6 | Jun 1 – Jul 27 | 55–70 |
| Peppers | Feb 2 | Apr 13 | Apr 20 | Jun 22 – Aug 31 | 60–90 |
| Pole Beans | Feb 16 | Apr 13 | Apr 20 | Jun 15 – Aug 10 | 55–70 |
| Potatoes | Feb 16 | Apr 13 | Apr 20 | Jun 29 – Sep 7 | 70–120 |
| Pumpkin | Mar 9 | Apr 13 | Apr 20 | Jul 20 – Sep 7 | 85–120 |
| Purslane | Mar 2 | Mar 23 | Apr 6 | May 18 – Jun 22 | 40–60 |
| Radicchio | Mar 2 | Mar 23 | Apr 6 | Jun 8 – Jul 13 | 60–80 |
| Radish | — | Mar 23 | — | Apr 20 – May 11 | 22–35 |
| Rhubarb | — | — | Apr 27 | — | 365–730 |
| Romanesco | Mar 2 | Mar 23 | Apr 6 | Jun 22 – Aug 3 | 75–100 |
| Rutabaga | — | Mar 23 | — | Jun 15 – Jul 20 | 80–100 |
| Salsify | — | Mar 23 | — | Jul 6 – Aug 17 | 100–130 |
| Savoy Cabbage | Mar 2 | Mar 23 | Apr 6 | Jun 15 – Aug 10 | 70–110 |
| Scallions | Mar 2 | Mar 23 | Apr 6 | Jun 1 – Jun 29 | 50–70 |
| Scarlet Runner Beans | Feb 16 | Apr 13 | Apr 20 | Jun 22 – Jul 27 | 60–80 |
| Shallot | Mar 2 | Mar 23 | Apr 6 | Jul 6 – Aug 24 | 90–120 |
| Shiso | Feb 16 | Apr 13 | Apr 20 | Jun 15 – Aug 10 | 50–70 |
| Snap Peas | Feb 16 | Apr 13 | Apr 20 | Jun 15 – Aug 10 | 55–70 |
| Snow Peas | Mar 2 | Mar 23 | Apr 6 | Jun 1 – Jul 27 | 50–65 |
| Soybeans | — | Apr 13 | — | Jul 6 – Aug 31 | 80–120 |
| Spaghetti Squash | Mar 9 | Apr 13 | Apr 20 | Jul 20 – Aug 17 | 85–100 |
| Spinach | Mar 2 | Mar 23 | Apr 6 | May 11 – Jul 13 | 35–50 |
| Squash (Summer) | Mar 9 | Apr 13 | Apr 20 | Jun 8 – Aug 10 | 45–65 |
| Squash (Winter) | Mar 9 | Apr 13 | Apr 20 | Jul 13 – Sep 7 | 80–120 |
| Sunchoke | — | — | Apr 20 | Aug 10 – Oct 5 | 110–150 |
| Sunflower | Feb 16 | Apr 13 | Apr 20 | Jun 29 – Aug 17 | 70–100 |
| Sweet Corn | — | Apr 13 | — | Jun 15 – Jul 27 | 60–90 |
| Sweet Potatoes | Feb 16 | Apr 13 | Apr 20 | Jul 20 – Sep 7 | 90–120 |
| Tatsoi | Mar 2 | Mar 23 | Apr 6 | May 11 – Jun 15 | 35–50 |
| Tomatillo | Feb 16 | Apr 13 | Apr 20 | Jun 22 – Aug 31 | 60–85 |
| Tomatoes | Feb 16 | Apr 13 | Apr 20 | Jun 22 – Aug 31 | 60–85 |
| Turnip | — | Mar 23 | — | May 4 – Jun 8 | 40–60 |
| Watercress | Mar 2 | Mar 23 | Apr 6 | May 18 – Jun 22 | 40–60 |
| Watermelon | Mar 9 | Apr 13 | Apr 20 | Jun 29 – Aug 17 | 70–100 |
| Wax Beans | — | Apr 13 | — | Jun 8 – Aug 3 | 50–65 |
| Winter Melon | Feb 16 | Apr 13 | Apr 20 | Jul 20 – Sep 7 | 90–120 |
| Yard Long Beans | Feb 16 | Apr 13 | Apr 20 | Jun 15 – Jul 27 | 55–80 |
| Zucchini | Mar 9 | Apr 13 | Apr 20 | Jun 8 – Aug 3 | 45–60 |
🍓 Fruits to Grow in Henry County
31 fruits that grow well in Zone 7a with planting dates for Henry County.
Show all 31 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Apr 27 | Jul 27 – Nov 9 | 90–180 |
| Aronia | — | — | Apr 27 | — | 730–1095 |
| Blackberries | — | — | Apr 27 | — | 365–730 |
| Blueberries | — | — | Apr 27 | — | 730–1095 |
| Boysenberries | — | — | Apr 27 | — | 365–730 |
| Cantaloupe | — | — | Apr 27 | Jul 6 – Aug 10 | 70–90 |
| Che Fruit | — | — | Apr 27 | — | 1095–1825 |
| Cranberries | — | — | Apr 27 | — | 730–1095 |
| Currants | — | — | Apr 27 | — | 730–1095 |
| Elderberries | — | — | Apr 27 | — | 730–1095 |
| Figs | — | — | Apr 27 | — | 730–1825 |
| Goji Berries | — | — | Apr 27 | — | 730–1095 |
| Gooseberries | — | — | Apr 27 | — | 730–1095 |
| Grapes | — | — | Apr 27 | — | 730–1095 |
| Ground Cherry | — | — | Apr 27 | Jul 6 – Aug 31 | 65–80 |
| Hardy Kiwi | — | — | Apr 27 | — | 1095–1825 |
| Haskaps | — | — | Apr 27 | — | 730–1095 |
| Honeydew | — | — | Apr 27 | Jul 20 – Aug 31 | 80–110 |
| Jostaberry | — | — | Apr 27 | — | 730–1095 |
| Kiwi | — | — | Apr 27 | — | 1095–1825 |
| Lingonberries | — | — | Apr 27 | — | 730–1095 |
| Loquat | — | — | Apr 27 | — | 730–1825 |
| Medlar | — | — | Apr 27 | — | 1095–1825 |
| Mulberries | — | — | Apr 27 | — | 730–1825 |
| Pawpaw | — | — | Apr 27 | — | 1095–2555 |
| Persimmon | — | — | Apr 27 | — | 1095–2555 |
| Pomegranate | — | — | Apr 27 | — | 730–1095 |
| Quince | — | — | Apr 27 | — | 1095–1825 |
| Raspberries | — | — | Apr 27 | — | 365–730 |
| Serviceberries | — | — | Apr 27 | — | 730–1095 |
| Strawberries | — | — | Apr 27 | Jul 27 – Dec 7 | 90–365 |
🌿 Herbs to Grow in Henry County
39 herbs that grow well in Zone 7a with planting dates for Henry County.
Show all 39 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | Mar 2 | Mar 23 | Mar 30 | — | 365–730 |
| Anise | Mar 2 | Mar 23 | Mar 30 | Jun 29 – Sep 14 | 90–120 |
| Basil | Feb 16 | Apr 13 | Apr 20 | Jun 15 – Aug 17 | 50–75 |
| Bee Balm | — | — | Apr 13 | Jul 13 – Sep 28 | 90–120 |
| Borage | Mar 2 | Mar 23 | Mar 30 | May 25 – Jul 13 | 50–60 |
| Caraway | Mar 2 | Mar 23 | Mar 30 | — | 365–450 |
| Catnip | — | — | Apr 13 | Jun 15 – Aug 17 | 60–80 |
| Chamomile | Mar 2 | Mar 23 | Mar 30 | Jun 1 – Aug 10 | 60–90 |
| Chervil | Mar 2 | Mar 23 | Mar 30 | May 11 – Jul 13 | 40–60 |
| Chives | — | — | Apr 13 | Jun 15 – Aug 24 | 60–90 |
| Cilantro | Mar 2 | Mar 23 | Mar 30 | May 11 – Jul 13 | 40–60 |
| Comfrey | — | — | Apr 13 | Jun 15 – Aug 24 | 60–90 |
| Cumin | Mar 2 | Mar 23 | Mar 30 | Jul 13 – Sep 14 | 100–120 |
| Dill | Mar 2 | Mar 23 | Mar 30 | May 11 – Jul 13 | 40–60 |
| Echinacea | — | — | Apr 13 | Aug 17 – Nov 23 | 120–180 |
| Epazote | Feb 16 | Apr 13 | Apr 20 | Jun 8 – Aug 3 | 45–60 |
| Fennel (herb) | Mar 2 | Mar 23 | Mar 30 | Jun 1 – Aug 10 | 60–90 |
| Feverfew | — | — | Apr 13 | Jul 13 – Sep 28 | 90–120 |
| Garlic Chives | — | — | Apr 13 | Jun 15 – Aug 24 | 60–90 |
| Horehound | — | — | Apr 13 | Jun 29 – Aug 24 | 75–90 |
| Hyssop | — | — | Apr 13 | Jun 22 – Aug 24 | 70–90 |
| Lavender | — | — | Apr 13 | Jul 13 – Nov 23 | 90–200 |
| Lemon Balm | — | — | Apr 13 | Jun 15 – Aug 3 | 60–70 |
| Lemon Thyme | — | — | Apr 13 | Jun 22 – Aug 24 | 70–90 |
| Lovage | — | — | Apr 13 | Jun 22 – Aug 24 | 70–90 |
| Marjoram | — | — | Apr 13 | Jun 15 – Aug 24 | 60–90 |
| Mint | — | — | Apr 13 | Jun 15 – Aug 24 | 60–90 |
| Oregano | — | — | Apr 13 | Jun 15 – Aug 24 | 60–90 |
| Parsley | Mar 2 | Mar 23 | Mar 30 | Jun 1 – Aug 3 | 60–80 |
| Rosemary | — | — | Apr 13 | Jul 6 – Nov 23 | 80–180 |
| Rue | — | — | Apr 13 | Jun 22 – Aug 24 | 70–90 |
| Sage | — | — | Apr 13 | Jun 29 – Aug 24 | 75–90 |
| Savory | — | — | Apr 13 | Jun 8 – Aug 3 | 50–70 |
| Sorrel | Mar 2 | Mar 23 | Mar 30 | May 11 – Jul 13 | 40–60 |
| Tarragon | — | — | Apr 13 | Jun 15 – Aug 24 | 60–90 |
| Thai Basil | Feb 16 | Apr 13 | Apr 20 | Jun 15 – Aug 17 | 50–75 |
| Thyme | — | — | Apr 13 | Jun 22 – Aug 24 | 70–90 |
| Valerian | — | — | Apr 13 | Aug 17 – Nov 23 | 120–180 |
| Yarrow | — | — | Apr 13 | Jul 13 – Sep 28 | 90–120 |
Monthly Planting Guide for Henry County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Henry County.
Frequently Asked Questions
What planting zone is Henry County, TN?
Henry 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 Henry County, TN?
Based on 31 years of NOAA weather station data, the median last spring frost in Henry County falls around April 6. In 8 out of 10 years, last frost lands between March 17 and April 19 — a 33-day window of variability. Use April 19 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Henry County, TN?
The median first fall frost in Henry County arrives around October 28. In cold years it can arrive as early as October 12; in mild years as late as November 13. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Henry County?
Henry County has a frost-free growing season of approximately 205 days. This long season supports multiple succession plantings and warm-season crops that need extended heat, like sweet potatoes and melons. Climate records show the growing season is trending longer by about 0.68 days per decade.
What is the soil like in Henry County for gardening?
Henry County has predominantly Silt Loam soil with a pH range of 5.8–7.1 and Somewhat Poorly Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Henry County?
Henry County has commercial agriculture that includes Corn, Soybeans, Hay. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Henry County a good location for home gardening?
Henry County scores 65/100 (Good) on our Microclimate Index, which combines frost reliability, drought pressure, soil challenge, elevation risk, and long-term climate trend. Conditions here are moderate — most common crops grow well with standard timing and care.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Henry County gardeners in Zone 7a 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.
