Rhododendrons - Azaleas. Rhus - Sumacs. Ribes - Currants. Rosa - Climbing Roses. Rosa - English Roses. Rosa - Floribunda Roses. Rosa - Grandiflora Roses. Rosa - Groundcover Roses. Rosa - Hybrid Tea Roses. Rosa - Rambling Roses. Rosa - Shrub Roses. Rosa - Roses. Rubus - Brambles. Salix - Willows. Salvia - Sages.
Sambucus - Elder. Sanguisorba - Burnets. Sarcococca - Sweet Boxes. Saxifraga - Saxifrages. Scabiosa - Pincushion Flowers. Scilla - Squills. Sedum - Stonecrops. Solenostemon - Coleus.
Solidago - Goldenrods. Sorbus - Mountain Ash. Spiraea - Spirea. Stipa - Feather Grasses. Symphoricarpos - Snowberries.
Syringa - Lilacs. Taxus - Yews. Thalictrum - Meadow Rues. Tigridia - Tiger Flower. Trachelospermum - Jasmines. Tradescantia - Spiderworts. Tricyrtis - Toad Lilies. Trillium - Wake Robins. Trollius - Globe Flowers. Tulipa - Tulips. Vaccinium - Blueberries. Verbascum - Mulleins. Veronica - Speedwells. Veronicastrum - Culver's Roots. Vinca - Periwinkles. Viola - Violets. Vitis - Grape Vines. Zantedeschia - Calla Lilies.
Hedychium - Ginger Lilies. Phalaris - Ribbon Grasses. Juncus - Rushes. Origanum - Oregano. Asplenium - Ferns. Polystichum - Ferns. Arisaema - Jack in the Pulpit. Dryopteris - Ferns. Philadelphus - Mock Oranges. Asarum - Wild Gingers. Aconitum - Monkshoods. Convallaria - Lily of the Valley. Ophiopogon - Mondo Grass.
Humulus - Hop Vines. Thymus - Thymes. Heucherella - Foamy Bells. Armeria - Thrifts. Crataegus - Hawthorns. Taxodium - Cypresses. Albizia - Mimosas. Aruncus - Goat's Beards. Heliopsis - Ox-Eye Sunflowers. Lamium - Dead Nettles. Lavatera - Tree Mallows. Leucanthemum - Daisies.
Myosotis - Forget-me-Nots. Phygelius - Cape Fuchsias. Rosmarinus - Rosemary. Tagetes - Marigolds. Anigozanthos - Kangaroo Paws. Amelanchier - Serviceberries. Liquidambar - Sweet Gums. Liriodendron - Tulip Trees. Musa - Bananas. Fraxinus - Ash Trees. Malva - Mallows. Polemonium - Jacob's Ladders.
Zephyranthes - Rain Lilies. Caltha - Marsh Marigolds. Callistemon - Bottlebrushes. Ceratostigma - Plumbagos. Disporum - Fairy Bells. Polygonatum - Solomon's Seals. Pulsatilla - Pasque Flowers. Cupressus - Cypresses. Sequoiadendron - Redwoods. Sequoia - Redwoods. Populus - Poplars.
Dictamnus - Gas Plants. Osmunda - Ferns. Silene - Campions. Rheum - Rhubarbs. Symphytum - Comfrey. Choisya - Mexican Oranges.
Chelone - Turtleheads. Cypripedium - Laddy Slippers. Erigeron - Fleabanes. Teucrium - Germanders. Tilia - Lindens. Plumeria - Frangipanis.
Araucaria - Monkey Puzzle Trees. Carya - Hickories. Castanea - Chestnuts. Calycanthus - Sweetshrubs. Phoenix - Date Palms. Tropaeolum - Nasturtiums. Gerbera - Gerbera Daisies. Illicium - Anise Trees. Pittosporum - Kohuhu. Meconopsis - Himalayan poppies. Streptocarpus - Cape Primroses. Amaranthus - Amaranths. Hebe - Shrubby Veronicas. Tiarella - Foam Flowers. Ocimum - Basils. Ulmus - Elms. Sarracenia - Pitcher Plants. Linum - Flax. Hepatica - Liverleaf. Eucomis - Pineapple Lilies.
Pachysandra - Spurges. Maianthemum - False Lily of the Valley. Vernonia - Ironweeds. Cirsium - Thistles. Mimulus - Monkey Flowers. Polypodium - Ferns. Nymphaea - Water Lilies.
Typha - Cattails. Bletilla - Hardy Orchids. Dactylorhiza - Marsh Orchids. Epipactis - Helleborines. Paphiopedilum - Slipper Orchids. Phalaenopsis- Moth Orchids. Dendrobium - Orchids.
Oncidium - Dancing Lady Orchids. Cattleya - Orchids. Cymbidium - Boat Orchids. Vanda - Orchids. Ludisia - Orchids. Phaius - Orchids. Phragmipedium - Slipper Orchids. Zygopetalum - Orchids. Miltoniopsis - Pansy Orchids. Masdevallia - Orchids.
Plant-Characteristics Cut Flowers. Dried Arrangements. Plant of Merit. Soil-Type Chalk. Soil-Drainage Moist but Well-Drained.
Moisture Retentive. Poorly Drained. Soil-pH Acid. Planting-Place Arbors, Pergolas, Trellises. Banks and Slopes. Beds and Borders. Bog Gardens. Zone 5 gardens feature a wide range of environments. From coastal waters and woodlands to the wide plains of the Midwest, plants should not only be cold hardy, but they also need to match the growing environment.
Gardens feature longer growing seasons that result in an increased vegetable harvest and extended blooms in landscaping. Raised beds and row covers help to warm the soil in Zone 5 for a longer growing season. After spring greens are planted, fast-maturing crops are then planted. Depending on your area, some cool season vegetables may be repeated in late summer for a fall harvest , including:. With the proper planting and care, many perennial flowers are hardy enough to survive the cold winters of Zone 5, including:.
Known as a generally mild climate, the average minimum winter temperature is between to 0 degrees F. With cold winter and mild-to-hot summers, you have many growing options in Zone 6. Zone 6 can expect minimum average temperatures of to -0 degrees F Zone 6a has a minimum average temperature of to -5 degrees F Zone 6b has a minimum average temperature of -5 to -0 degrees F Each of the two subzones can experience harsher temperatures depending on weather conditions.
Zone 6 features many plants ideal for gardening and landscaping. Seed companies, nurseries and garden centers offer Zone 6 gardeners countless options. In many areas, spring, summer and fall blooms and vegetables are all possible. In Zone 6, the extended garden season and hotter summer temperatures make growing a wide variety of vegetables popular. Temperatures remain cool enough for rhubarb and asparagus, but get warm enough for melons and watermelon.
Look to plant vegetables according to the length of the growing season. Vegetables that tend to do well are:. Due to warm springs, herbs that reseed themselves are often popular Zone 6 choices. These include:. Because Zone 6 features distinct seasons of spring, summer and fall, flowers are available and will bloom for several months.
In addition to cold hardy flowers such as pansies and snapdragons, extend your growing season by planting:. Planting Zone 7 reaches across approximately 15 U. This zone features cool winters with average minimum temperatures falling between 0 to 10 degrees F.
Gardens in this zone have multiple plant options from seed catalogues, local home stores, nurseries and greenhouses. Zone 7 can expect minimum average temperatures of 0 to 10 degrees F Zone 7a has a minimum average temperature of 0 to 5 degrees F Zone 7b has a minimum average temperature of 5 to 10 degrees F Each of the two subzones can experience harsher temperatures depending on weather conditions.
Zone 7 contains many different growing climates, from the Eastern coastal areas through the Oklahoma prairies to the arid regions of the southwest and up into the forests of Oregon and Washington.
Many Zone 7 hardy plants can be grown successfully in multiple locations with adjustments made to address their specific needs. Frost and early spring cold snaps can damage young vegetables.
Providing row covers or cold frames can help protect against early spring or late fall damage. The long, hot summers, combined with the milder winters provide ideal growing temperatures for almost all vegetables. Although artichoke can be grown as an annual starting in Zone 4, in Zone 7 this decorative and edible plant becomes a perennial favorite. Add to your planting list:. In addition to most annual herbs, a wide variety of perennial herbs survive well in Zone 7. Herbs to consider adding to your Zone 7 garden include:.
The hot summers in Zone 7 allow for the bloom of most flowering annuals. In addition, many perennials are considered hardy to Zone 7, including:. Zone 8 is considered one of the warmest plant hardiness zones for a large portion of the southern United States.
Extending up the western coast, Zone 8 features average minimum winter temperatures of 10 to 20 degrees F. With hot summers and mild winters, growers typically enjoy a long planting season. Zone 8 can expect minimum average temperatures of 10 to 20 degrees Zone 8a has a minimum average temperature of 10 to 15 degrees F Zone 8b has a minimum average temperature of 15 to 20 degrees F Each of the two subzones can experience harsher temperatures depending on weather conditions.
Plants hardy for Zone 8 love mild winters and long, hot summers. With a wide range of moisture and sunlight requirements, growers should narrow down a potential plant list first by zone, and then by specific growing climates. Many gardeners in Zone 8 grow vegetables three times a year, especially with the aid of cold frames and row covers. Cool weather plants like spinach, lettuce and peas can be grown in both the spring and the fall.
Even your summer vegetable harvest can be extended by planting every two weeks. Vegetables that thrive in the summer heat of Zone 8 include:. Many of the herbs hardy to Zone 8 are native to Mediterranean areas. They thrive in long, hot summers and are often drought resistant.
Consider adding these herbs to your Zone 8 herb garden:. Zone 8 flowers should be able to stand up to the heat of the hot summers. Providing shade and plenty of moisture can help push your flowers through the hottest of days. Flowers well suited for Zone 8 gardens include:. Planting Zone 9 is considered a year-round planting zone.
Located in California, Arizona, Texas, Florida and along the Gulf of Mexico coast, this zone features warm winters and hot summers. With an average minimum winter temperature of 20 to 30 degrees F, Zone 9 features active gardens throughout the entire year. Zone 9 can expect minimum average temperatures of 20 to 30 degrees F Zone 9a has a minimum average temperature of 20 to 25 degrees F Zone 9b has a minimum average temperature of 25 to 30 degrees F Each of the two subzones can experience harsher temperatures depending on weather conditions.
Long, hot summers and mild winter conditions make the heat more of an issue than the cold in this zone. Tropical plants with low water requirements thrive in Zone 9. Because of the extreme heat, spring gardening begins much earlier and fall gardens produce much longer than in other zones. The extreme heat of the summer breaks the vegetable garden season into winter, spring and fall gardening, versus the stereotypical summer gardening.
Most areas will only produce peppers, okra and extremely heat-tolerant vegetables during August. Instead of considering the cold hardiness, growers in Zone 9 actually need to consider the heat tolerance of certain plants.
Apples, pears, peaches and cherries require colder weather than Zone 9 provides. Instead of these popular fruit options, consider planting the following citrus and tropical fruit trees:.
Certain cool season herbs, such as cilantro and parsley, may be grown throughout the winter in Zone 9. Other herbs that tolerate the heat well include:. Zone 9 flower gardens will showcase blooms year-round.
Cold-hardy plants perform well during the mild winters, while tropical perennials are the centerpieces of long, hot summers. Zone 9 flowering plants include:. Southern inland California, southern Florida and Hawaii are the three small areas where the average minimum winter temperature only falls between 30 to 40 degrees F.
The ability of Zone 10 gardeners to avoid freezing temperatures is a huge bonus for winter gardening, but the extreme heat of the summer months limits planting possibilities. Each zone has two subsets. The Zone 9 subsets are Zone 9a and Zone 9b. That means the temperature ranges for Zone 9 are:. The hardiness zones are based on minimum average temperatures.
However, colder temperatures can occur due to unforeseen weather pattern changes. The National Gardening Association proposed the change was due to advancements in weather mapping technology. The technology was significantly more sophisticated than the technology used for the mapping. In addition to better technology, more weather tracking stations contributed data to the hardiness zone guide. Due to topography and climate conditions, states have more than one hardiness zone. Microclimates can create pockets of warmer zones in states that otherwise have significantly colder winters.
There are 15 states that have Zone 9 areas. These include:. Zone 9 is listed as a year-round planting zone. The generally accepted growing season length for Zone 9 is nine months since summer months are so hot. Summer heat presents a challenge to typical summer vegetable gardens. While some hybrids are bred specifically for sweltering heat, many heirlooms and non-hybrid vegetables don't thrive in extreme heat.
There are some heat-loving vegetables that thrive during Zone 9 sweltering hot summers. When shopping for seeds or plants, choose heat and drought tolerant varieties or hybrids bred to withstand high temperatures. There are fruit trees , flowers, nut trees and other plants suitable for Zone 9.
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