USDA zone 8 is one of the most generous zones in the country for gardeners. Winters are mild enough to grow cool-season vegetables from fall through spring, summers are long enough for heat lovers like okra and sweet potatoes, and a wide range of perennials, shrubs and fruit trees are fully hardy. The catch is that zone 8 covers very different climates: a humid Southern garden in Georgia, a dry central Texas yard and a cool, wet Pacific Northwest plot share winter lows but not much else. This guide lists what grows well across zone 8, splits out 8a from 8b where it matters, and gives a month-by-month planting calendar you can adjust to your local frost dates.
In this guide
Key Takeaways
- Zone 8a averages winter lows of 10 to 15°F; 8b averages 15 to 20°F.
- Typical last spring frost is mid-March to early April in the South, later in the Pacific Northwest; first fall frost is often November.
- Zone 8 supports two vegetable seasons: cool crops in fall through spring, warm crops from April to September.
- Fall is the best time to plant trees, shrubs and most perennials.
- Hardiness is only half the picture; summer heat, humidity and rainfall decide what thrives.
What Zone 8 Means
Hardiness zones are based on the average coldest winter night. Zone 8 gardens typically bottom out between 10 and 20°F, with 8a the colder half and 8b the milder half. A plant rated “hardy to zone 8” should survive a typical winter there, but zones say nothing about summer heat, rainfall or soil. Check your exact zone by ZIP code with our USDA hardiness zone map guide, then look up your average frost dates locally, since those drive the planting calendar more than the zone does.
Broadly, zone 8 covers much of the interior Southeast and Gulf states, large parts of Texas and Oklahoma, the lowlands of the Pacific Northwest west of the Cascades, and parts of the Southwest and California’s interior valleys. A Seattle gardener and an Atlanta gardener are both in zone 8, but Atlanta has hot, humid summers and Seattle has cool, dry ones. Keep that in mind as you read the lists below.
Vegetables for Zone 8
Zone 8 gardeners can harvest something nearly year-round. Plan for two main seasons and a short gap in the hottest part of summer in the South. Bed setup, soil and crop basics are covered in our vegetable gardening hub.
Cool-season crops (fall, winter, early spring)
- Leafy greens: lettuce, spinach, kale, collards, Swiss chard, arugula, mustard greens. Collards and kale often survive zone 8 winters unprotected.
- Brassicas: broccoli, cabbage, cauliflower, Brussels sprouts. Set transplants out in late summer to early fall for the best harvests; spring crops often bolt as heat arrives.
- Roots: carrots, beets, radishes, turnips. Sow in September and again in February.
- Alliums: garlic and shallots planted in October to November; short-day or intermediate-day onions planted in late winter in the South; long-day onions in the Pacific Northwest.
- Peas: sow in late winter (February in much of the South) or in early fall.
Warm-season crops (spring through summer)
- Tomatoes and peppers: transplant after the last frost when nights stay above 50°F. In hot-summer areas, choose heat-setting tomato varieties and plant early so fruit sets before daytime highs reach the mid-90s.
- Beans, squash, cucumbers and melons: direct sow once soil is warm, typically April.
- Okra, Southern peas and sweet potatoes: the stars of a hot zone 8 summer in the South and Texas. Plant in May.
- Corn: sow in succession from April through early June.
- Eggplant: transplant after the soil warms; thrives in heat.
In the Pacific Northwest portion of zone 8, summers are cooler. Choose shorter-season tomatoes, give heat lovers like peppers and melons the warmest spot you have, and expect okra and sweet potatoes to struggle.
Herbs
Rosemary, thyme, oregano, sage, chives and lavender are perennial in most of zone 8, though rosemary can be damaged in a hard 8a freeze or in wet winter soil. Basil is a summer annual. Cilantro and parsley do best in the cool season; sow cilantro in fall for a winter and spring harvest, since it bolts in heat. Mint is perennial and should be contained in pots.
Perennials and Flowers for Zone 8
| Plant | Light | Notes for zone 8 |
|---|---|---|
| Coneflower (Echinacea) | Full sun | Heat- and drought-tolerant once established |
| Black-eyed Susan | Full sun | Long summer bloom; self-sows |
| Salvia (perennial types) | Full sun | Many species are hardy and bloom spring to frost |
| Daylily | Sun to part shade | Very adaptable across zone 8 climates |
| Lantana | Full sun | Often perennial in 8b, root-hardy or annual in 8a |
| Hellebore | Shade | Winter and early spring blooms in shade gardens |
| Hosta | Shade | Best in the PNW and northern edge; needs water and shade in the South |
| Lavender | Full sun | Needs sharp drainage; struggles in humid Southern summers |
| Russian sage | Full sun | Drought-tolerant; good for dry zone 8 gardens |
| Canna and ginger lily | Sun | Root-hardy in much of zone 8 with mulch |
Spring bulbs like daffodils, alliums and Spanish bluebells come back reliably across zone 8. Tulips usually need to be treated as annuals in 8b and in the humid South because winters are not cold enough for strong rebloom. Pre-chilled tulip bulbs planted in December give the best one-season show.
Shrubs and Trees for Zone 8
- Hydrangeas: bigleaf, oakleaf, panicle and smooth types all grow in zone 8; bigleaf types need afternoon shade in the hot South.
- Camellias and azaleas: classic Southern shrubs for acidic soil and part shade; sasanqua camellias bloom in fall, japonica types in winter.
- Gardenia: hardy in most of zone 8; choose cold-hardy selections in 8a.
- Crape myrtle: the signature summer-flowering tree of the zone 8 South.
- Southern magnolia, live oak and redbud: dependable shade and ornamental trees.
- Boxwood, holly and loropetalum: evergreen structure and hedging.
- Japanese maple: grows well in the PNW; needs afternoon shade and steady water in the South.
Fruit
Figs, blueberries (rabbiteye types in the South, highbush in the PNW), blackberries, muscadine grapes in the Southeast, persimmons, pears and many low- to moderate-chill peaches all perform in zone 8. Check chill-hour requirements for fruit trees; a variety that needs 1,000 chill hours will not fruit reliably in a mild 8b winter. Citrus is marginal: satsumas and kumquats can survive in protected 8b spots, but most citrus needs to be grown in containers and moved in for hard freezes.
Zone 8 Planting Calendar
Use this as a starting point and shift it by two to three weeks based on your actual frost dates and whether you are in 8a or 8b. Pacific Northwest gardeners should push warm-season dates later, since soil warms slowly in their cool springs.
| Month | Vegetables and herbs | Ornamentals and maintenance |
|---|---|---|
| January | Start tomatoes, peppers and eggplant indoors late in the month; plant onion sets in the South | Plant bare-root fruit trees and roses; prune summer-blooming shrubs |
| February | Sow peas, spinach, lettuce, radishes outdoors; plant potatoes late in the month | Cut back ornamental grasses; divide perennials |
| March | Transplant broccoli and cabbage early; sow carrots and beets | Plant perennials and shrubs; fertilize lawns as they green up |
| April | Transplant tomatoes and peppers after last frost; sow beans, squash, cucumbers, corn | Plant summer annuals; mulch beds |
| May | Plant okra, sweet potatoes, Southern peas, melons | Deadhead spring perennials; watch for pests |
| June | Succession sow beans and corn; harvest early crops | Water deeply; prune spring-blooming shrubs after flowering |
| July | Start fall tomatoes in the South; start brassica seedlings indoors late in month | Keep up watering; avoid heavy pruning in heat |
| August | Transplant fall tomatoes; sow fall beans and squash early in month | Plan fall planting; order bulbs |
| September | Transplant broccoli, cabbage, collards, kale; sow carrots, beets, turnips, lettuce | Divide and plant perennials; overseed cool-season lawns |
| October | Sow spinach, radishes, cilantro; plant garlic and shallots | Prime time to plant trees and shrubs; plant spring bulbs |
| November | Harvest greens and roots; cover tender crops on cold nights | Plant pansies and violas; finish bulb planting; mulch |
| December | Harvest collards, kale and roots; plan spring garden | Plant pre-chilled tulips; protect tender plants from hard freezes |
For more seasonal lists, our guides to what to plant in fall and what to plant in spring go deeper into individual crops.
8a vs 8b: What Changes
Five degrees of winter low makes a real difference at the margins. In 8b you can usually leave rosemary, lantana, many salvias, agapanthus and some palms in the ground year-round, and winter greens rarely need cover. In 8a, the same plants may die back or need a thick mulch and a frost cloth during cold snaps, and borderline plants like loquat, satsuma and fig may freeze back in a hard winter. If a plant is rated hardy only to zone 8b, plant it in 8a against a south-facing wall, in a raised bed with good drainage, or in a container you can move.
Zone 8 Challenges and How to Handle Them
- Summer heat (South and Texas): Plant warm crops early, mulch heavily, and use shade cloth over lettuce and young transplants. Many tomatoes stop setting fruit when nights stay above about 75°F.
- Humidity and disease: Space plants generously, water at the base and choose disease-resistant varieties of tomatoes, roses and squash.
- Late frosts: A warm February can coax buds out before a March freeze. Keep frost cloth handy; see how to protect plants from frost.
- Wet winters (PNW): Raised beds and good drainage prevent root rot in lavender, rosemary and other Mediterranean plants.
- Clay soil: Common in the Southeast and Texas. Add compost every year and avoid working soil when wet.
- Pests that overwinter: Mild winters let insects survive. Clean up spent crops in fall and rotate plantings.
Frequently Asked Questions
When is the last frost in zone 8?
It varies by location, but typically falls between mid-March and early April in the South and Texas, and later in the Pacific Northwest. Look up your ZIP code’s average last frost date rather than relying on the zone alone.
What vegetables grow year-round in zone 8?
Collards, kale, Swiss chard, garlic, onions, carrots and many lettuces can be grown through fall and winter in most of zone 8, with summer crops like tomatoes, beans and squash following in spring.
Can I grow citrus in zone 8?
Cold-hardy types like satsuma mandarin and kumquat can survive in protected 8b locations. Elsewhere in zone 8, grow citrus in containers and move them under cover when temperatures drop below the upper 20s.
When should I plant trees and shrubs in zone 8?
October through early winter is ideal. Roots keep growing in cool, moist soil, so plants are established before summer heat arrives.
What is the difference between zone 8a and 8b?
Zone 8a averages winter lows of 10 to 15°F and 8b averages 15 to 20°F. The milder 8b lets you grow more borderline plants such as satsumas, lantana and some palms in the ground.