Local planting guide · Southeast
zip 39205
Jackson is in USDA hardiness zone 8b, with average winter lows of 15°F to 20°F. The local growing season runs roughly 03/06 through 11/19 (~258 days). This zip falls within the Southeast growing region.
- USDA zone
- 8b 15°F to 20°F
- Last spring frost
- 03/06
- First fall frost
- 11/19
- Growing season
- 258 days
- Compatible crops
- 68
- Growing region
- Southeast
Right now in Jackson
Week 18 priorities
On the docket: transplant out after last frost · direct sow after last frost. See the full calendar →
Gardening in Jackson
Jackson sits in USDA zone 8b, where winter lows rarely drop below 15 degrees Fahrenheit. The city's gardening advantage is a long growing season of 258 days between the last spring frost (March 6) and the first fall frost (November 19), coupled with abundant heat and moisture during the warm months. This combination favors heat-loving crops like figs, persimmons, and Asian pears, which thrive in zone 8b's subtropical climate. However, the same humidity that supports a long growing season also creates ideal conditions for fungal diseases, powdery mildew, and pest pressure. Stone fruits like peaches and Japanese plums are reliable performers, though late-March frosts occasionally damage early flower buds. The zone's defining challenge is balancing the opportunity of a long season against the risk of fungal disease, which spreads quickly in warm, humid air. Gardeners who prioritize disease-resistant varieties and manage canopy airflow tend to have the most success with fruit trees in this region.
Regional context · Southeast
What the Southeast brings to Jackson
Hot, humid, long growing season. Disease-resistant variety selection is the difference between a productive and a failed planting. Strong region for muscadines, blueberries, peaches, persimmons, figs, and warm-season vegetables.
Common challenges
Issues that most often defeat home gardeners in zone 8b, drawn from the broader USDA zone profile.
- ▸ Low chill hours limit apple variety selection
- ▸ Citrus greening risk
- ▸ Nematodes in sandy soils
What defeats new gardeners in Jackson
The most common struggle in Jackson-area gardens is fungal disease pressure, particularly fungal leaf spots, anthracnose, and powdery mildew on fruit trees and vegetables alike. The combination of warm temperatures, high humidity, and frequent summer rain creates near-ideal conditions for spore germination and spread. A secondary challenge is late spring frost damage to stone fruit flowers; while March 6 is the statistical average last spring frost, frost-sensitive trees planted in low-lying locations or unprotected areas can lose an entire crop to a single late-March cold snap. Intermittent summer drought, despite the region's generally moist climate, can stress trees during peak heat, particularly if irrigation isn't carefully timed.
Crops that grow in Jackson
68 crops from our catalog match zone 8b, grouped by type.
Tree fruit
11 crops
zone 8b Apple
Malus domestica
zones 3a–9a
zone 8b Pear
Pyrus communis
zones 4a–8b
zone 8b Peach
Prunus persica
zones 5a–9a
zone 8b Japanese Plum
Prunus salicina
zones 5b–9a
zone 8b Fig
Ficus carica
zones 7a–10b
zone 8b American Persimmon
Diospyros virginiana
zones 4b–9a
zone 8b Asian Persimmon
Diospyros kaki
zones 7a–10a
zone 8b Pomegranate
Punica granatum
zones 7b–10a
Berries
6 crops
zone 8b Rabbiteye Blueberry
Vaccinium virgatum
zones 7a–9a
zone 8b Blackberry
Rubus subgenus Rubus
zones 5a–9a
zone 8b June-Bearing Strawberry
Fragaria x ananassa
zones 3a–8b
zone 8b Everbearing Strawberry
Fragaria x ananassa
zones 3b–9a
zone 8b Elderberry
Sambucus canadensis
zones 3b–9a
zone 8b Goji Berry
Lycium barbarum
zones 3b–10a
Nuts
5 crops
Vegetables
36 crops
zone 8b Tomato
Solanum lycopersicum
zones 3a–10b
zone 8b Sweet Pepper
Capsicum annuum
zones 4a–10b
zone 8b Hot Pepper
Capsicum species
zones 4a–10b
zone 8b Eggplant
Solanum melongena
zones 5a–10b
zone 8b Potato
Solanum tuberosum
zones 3a–9a
zone 8b Cabbage
Brassica oleracea var. capitata
zones 3a–9b
zone 8b Broccoli
Brassica oleracea var. italica
zones 3a–9a
zone 8b Cauliflower
Brassica oleracea var. botrytis
zones 3b–9a
Herbs
10 crops
zone 8b Basil
Ocimum basilicum
zones 4a–10b
zone 8b Parsley
Petroselinum crispum
zones 3b–9b
zone 8b Cilantro / Coriander
Coriandrum sativum
zones 3b–9b
zone 8b Dill
Anethum graveolens
zones 3b–9a
zone 8b Oregano
Origanum vulgare
zones 4a–9b
zone 8b Thyme
Thymus vulgaris
zones 4a–9a
zone 8b Rosemary
Salvia rosmarinus
zones 7a–10b
zone 8b Sage
Salvia officinalis
zones 4a–9a
Plan the year
Planting calendar for Jackson
Year-view of seed starting, transplanting, planting, pruning, fertilizing, harvest, and pest-watch windows tuned to Jackson's local frost dates.
Week ? · loading
This week in Jackson, MS (zone 8b)
Quiet week in Jackson, MS (zone 8b). this week is a good time to step back and plan ahead.
Nothing critical on the calendar this week.
333 bars · 68 crops
Calendar logic combines NOAA frost normals with crop-specific timing data. Local microclimate and weather always overrules the calendar; use this as a starting point.
Top pests for zone 8b
Ranked by how many crops in your zone they affect. Click through for IPM controls and signs to watch for.
Multiple species (Aphididae)
Small soft-bodied sap-sucking insects that reproduce explosively in spring. Excrete honeydew that supports sooty mold and attracts ants. Transmit viral diseases.
Odocoileus species
Whitetail and mule deer browse can devastate orchards and gardens, particularly in winter when food is scarce. Antler rub on young trunks kills saplings outright.
Meloidogyne species
Microscopic soil-dwelling worm that forms galls on roots, reducing vigor and yield.
Sylvilagus and Lepus species
Cottontails and jackrabbits strip bark from young fruit trees in winter and graze tender garden vegetables year-round, especially seedlings.
Tetranychus urticae
Tiny mite that feeds on leaf undersides, causing stippling and webbing during hot dry weather.
Multiple species (Chrysomelidae)
Tiny black or bronze jumping beetles that put hundreds of small holes in seedling leaves. Most damaging on direct-seeded brassicas and young eggplant.
Popillia japonica
Defoliating beetle introduced to North America in 1916. Skeletonizes leaves of many fruit trees, berry canes, and pecan.
Microtus species
Field voles and meadow voles girdle young fruit-tree trunks under snow cover during winter and chew root crops. The leading cause of mysterious orchard losses.
Top diseases for zone 8b
Ranked by how many crops in your zone they affect. Click through for symptoms, controls, and resistant varieties.
Pseudoperonospora cubensis (cucurbits) and others
Water mold (oomycete, not a true fungus) that thrives in cool damp conditions. Spreads rapidly through cucurbit and brassica plantings on wind-borne spores.
Pythium and Rhizoctonia species
Soil-borne complex of water molds and fungi that kill seedlings before or shortly after emergence. The single most common cause of seed-starting failures.
Cucumber mosaic virus, Tobacco mosaic virus, and others
Family of plant viruses producing mottled yellow-and-green leaf patterns. Vectored primarily by aphids; some are seed-transmitted or spread by handling tools and tobacco products.
Fusarium oxysporum
Soil-borne fungal disease that plugs vascular tissue and kills affected plants. Persists in soil for many years; impossible to eliminate once established.
Sclerotium rolfsii
Soil-borne fungal disease most damaging in warm humid Southern conditions. White mycelial fans and small mustard-seed-sized sclerotia at the soil line are diagnostic.
Multiple species (Erysiphales)
Surface-feeding fungal disease producing white powdery growth on leaves and stems. Reduces yield by stealing photosynthate and accelerating senescence.
Verticillium dahliae
Soil-borne fungal disease similar to fusarium wilt but with broader host range and cooler temperature optimum. Persists in soil for 10+ years.
Plasmodiophora brassicae
Soil-borne disease causing characteristic distorted club-shaped roots on brassicas. Persists in soil for 10-20 years; the dominant brassica pathogen in acidic poorly-drained soils.
Companion planting suggestions
Beneficial pairings drawn from companion data, filtered to crops that grow in zone 8b.
- Peach + Garlic
Garlic planted around peach trees suppresses peach borer and provides general fungal-pressure reduction.
- Fig + Rosemary
Rosemary tolerates the dry sites figs prefer and provides aromatic pest deterrence.
- American Persimmon + Pawpaw
Both natives thrive in similar soils and contribute to a polyculture that supports native pollinators and fauna.
- Jujube + Thyme
Thyme groundcover suits jujube's low-water profile and deters cabbage moth and aphid populations.
- Rabbiteye Blueberry + Thyme
Thyme tolerates the acidic soil and full sun rabbiteyes need and supports beneficial insect populations.
- Blackberry + Garlic
Garlic between blackberry rows reduces fungal pressure on canes during humid weather.
Soil types reference
Soil texture and pH decide what grows easily on your specific lot. Find the closest match below for crop recommendations and amendment guidance.
Practical tips for Jackson
Choose disease-resistant varieties explicitly bred for humid climates. Many stone fruits and apples are available in scab-resistant or mildew-tolerant cultivars developed by extension programs in the humid Southeast; these outperform generic national varieties. Site frost-sensitive fruit trees like peaches and Japanese plums on higher ground or against a south-facing wall; these locations warm earlier in spring, reducing frost damage risk. Manage summer fungal disease by spacing trees widely for air circulation and avoiding overhead watering late in the day. If powdery mildew or leaf spot appears, early action with sulfur or horticultural oil during the cool morning hours often stops spread before it demands repeat sprays.
Frequently asked questions
- What fruit trees grow best in Jackson, Mississippi?
Apples (disease-resistant varieties), pears, peaches, Japanese plums, figs, and both American and Asian persimmons are all reliable in zone 8b. Pomegranates also thrive in Jackson's heat. Stone fruits like peaches require careful variety selection to avoid fungal disease susceptibility.
- When do I plant tomatoes in Jackson?
Jackson's last spring frost averages March 6, so direct sow or transplant tomatoes in late March to early April. The first fall frost arrives November 19, allowing summer tomatoes roughly 230 days to mature. Succession plant in late May for a fall crop that sets before late October.
- Will late spring frosts kill my peach blossoms?
Possibly. While the average last frost is March 6, Jackson sometimes experiences freezes into late March. Peach and Japanese plum flowers are vulnerable. Plant these trees in a slightly elevated location that drains cold air away, and avoid low-lying frost pockets if possible.
- How do I prevent fungal diseases on my fruit trees?
Space trees for good air circulation, avoid overhead watering late in the day, and select disease-resistant varieties. Sulfur applications or horticultural oil during dry mornings help prevent spread once disease appears. Extension guides on Southeast-specific disease management are worth consulting before summer heat arrives.
- Is zone 8b cold enough for apple chill hour requirements?
Most apples require 300 to 1000 chill hours (temperatures 32 to 45 degrees Fahrenheit). Zone 8b's winter lows average 15-20 degrees, and Jackson's winter season is long enough to accumulate adequate chilling for most mid-chill and low-chill varieties. High-chill types (800+ hours) are less reliable.
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Frost data: NOAA Climate Normals 1991-2020, station USW00013927. Local microclimates can shift these dates by a week or more.
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