Kansas spans USDA hardiness zones 5b through 7a, and of the 65 landscape plants this site documents, 60 survive the winter anywhere in that range. Five are hardy in only part of the state. None fail everywhere. The real work is figuring out which zone your own county sits in, since a plant that thrives near the Oklahoma line can struggle near the Nebraska border.
What will not survive a winter in Kansas
Start with the good news: of the 65 Trees, Shrubs and Perennials this site tracks against Kansas’s 5b-7a range, zero are hardy in none of it. Every one of these plants has at least a foothold somewhere in the state’s climate span. That’s not a small thing, since neighboring territories with narrower or colder ranges often carry a short list of outright losers. Kansas doesn’t.
That doesn’t mean every plant on the list is a good fit everywhere in the state, and it doesn’t mean “hardy” equals “happy.” A plant rated hardy at the warm end of its range is often sitting at its heat ceiling, not its cold one, and Kansas summers push that ceiling hard. A magnolia or crepe myrtle that survives a Wichita winter can still sulk through a Wichita August. Survival and comfort are two different questions, and this section only answers the first one.
So instead of a table of failures, which the data doesn’t support, the more useful list is the one in the next section: the plants that split the difference, thriving in one end of Kansas and struggling in the other. That’s where a state this size actually creates a problem for gardeners, because 5b and 7a are not the same growing world.
It’s worth remembering, too, that this count reflects the 65 species this site has cataloged and crossed against the state’s hardiness range, not a census of everything botanically possible in Kansas. Extension offices, native plant societies and specialty nurseries document plenty more. The value here is a filtered, checked list, not a complete flora.
The plants that work in part of the state and not the rest
Five plants on this list are hardy in part of Kansas and not the rest, and this is the section that actually justifies treating Kansas as its own page rather than folding it into a regional average. A gardener in Goodland, near the cold edge of zone 5b, and one in Wichita, closer to 7a, are not getting the same answer from these five plants.
| Plant | Hardiness range | Fails in Kansas at |
|---|---|---|
| Ficus carica (fig) | Wide range, cold-limited | Zones 5b, 6a and 6b, only the warmest slice of the state, near 7a, is in range |
| Hydrangea macrophylla (bigleaf hydrangea) | Cold-limited at the low end | Zone 5b only |
| Lagerstroemia indica (crepe myrtle) | Cold-limited at the low end | Zone 5b only |
| Magnolia grandiflora (southern magnolia) | Cold-limited at the low end | Zone 5b only |
| Weigela florida (weigela) | Warm-limited at the high end | Zone 7a only |
Four of these five fail at the cold end of the state. Fig, crepe myrtle and southern magnolia all drop out once you’re in zone 5b, and fig loses even more ground, struggling through 6a and 6b as well and really only working reliably in the warmest sliver of Kansas. Weigela runs the opposite direction: it’s the one plant here that fails at the warm end, in 7a, rather than the cold one.
None of this is guesswork about mechanism. The data says which zones each plant fails in, not why. What matters for a reader is simpler: know your zone before you plant one of these five. Kansas counties don’t all sit in the same slice of 5b-7a, and the insulation guide for Kansas carries the county-level zone picture that settles the question for your specific address.
The soil and the summer they will be planted into
Kansas’s official state soil is the Harney series, a Mollisol, the deep, dark prairie soil that built the Corn Belt. Its surface horizon runs loam to silt: about 9 percent sand, 24 percent clay and 67 percent silt, with organic matter around 2.0 percent and a surface pH near 6.7, close to neutral. It’s also well drained, which matters more than the pH number for a woody plant, since more perennials die from wet roots over winter than from cold itself.
That said, the Harney series describes the soil that represents Kansas, not the soil in any one backyard. A state this size holds hundreds of mapped soil series, and river bottoms, hill country and anywhere a builder has scraped or filled ground will differ completely from the Harney profile. A soil test on your own plot is the only way to know your actual pH, drainage and texture before planting a tree meant to stand for decades.
What the summer rain actually means
Kansas averages about 13.2 inches of rain across June, July and August, out of 34.3 inches for the year, with July the driest summer month at 3.98 inches against June’s 4.93 and August’s 4.3. That’s a meaningful amount of summer moisture, but the figure doesn’t translate directly into a watering plan.
The same inch of rain behaves differently depending on what it lands on. On a silty, well-drained Harney-type surface, water moves through fairly evenly. On a denser clay pocket, common in parts of the state where the mapped series shifts, that same rain can sit longer at the root zone, which changes how a new planting responds to a wet week versus a dry one. Rainfall numbers only mean something once you cross them against what’s actually under the plant.
When to plant, here
At the reference weather station used for these normals, the last spring frost falls between April 4 and April 18, and the first fall frost arrives between October 23 and November 2. Those two windows frame the planting calendar for the whole state, though not every county matches the reference station exactly, and suburban and rural sites often see frost arrive earlier in fall and linger later in spring, sometimes by a week or two, more at higher elevation.
The reasoning behind these windows matters more than the calendar dates themselves. A newly planted tree or shrub needs time to grow roots before it’s asked to support leaves through summer heat or hold on through a hard freeze. Plant too close to the last frost and a late cold snap can damage tender new growth. Plant too late in fall and the plant may not root deeply enough before the ground locks up.
| Window | Best suited for | Main risk |
|---|---|---|
| Spring (after April 4-18) | Broad range of Trees, Shrubs and Perennials; full growing season ahead to establish roots | A late frost after an early warm spell can still damage new growth |
| Autumn (before October 23-November 2) | Trees and shrubs that benefit from cooler root-establishment weather and less watering stress | Less time to root before winter, especially toward the cold end of the state’s range |
In the coldest part of Kansas’s zone range, near 5b, that fall window is shorter than it is farther south and east, leaving less margin for a plant to establish before frost sets in. And whatever a plant’s drought tolerance rating says, that rating describes an established plant with a developed root system. A tree planted this spring or fall still needs regular watering through its first season regardless of how drought-tolerant it will eventually become.
Where to read about each one
Sixty of the 65 plants this site tracks are hardy across the entire state, which leaves a long list to work with once you know your zone. Among trees, Kansas gardeners can plant Acer rubrum, Acer saccharum, Quercus alba, Quercus rubra, Cercis canadensis, Cornus florida, Ginkgo biloba, Betula nigra, Nyssa sylvatica, Tilia americana, Platanus occidentalis, Juniperus virginiana, Thuja occidentalis, Picea abies, Pinus strobus, Amelanchier canadensis, Carpinus caroliniana and Liquidambar styraciflua.
Shrubs hardy statewide include Buxus sempervirens, Hydrangea paniculata, Viburnum dentatum, Physocarpus opulifolius, Spiraea japonica, Syringa vulgaris, Ilex glabra, Ilex verticillata, Itea virginica, Clethra alnifolia, Fothergilla gardenii, Kalmia latifolia and Aronia arbutifolia. Perennials that hold up statewide include Echinacea purpurea, Rudbeckia fulgida, Salvia nemorosa, Monarda didyma, Phlox paniculata, Baptisia australis, Asclepias tuberosa, Achillea millefolium, Iris sibirica, Amsonia hubrichtii, Lavandula angustifolia, Heuchera americana and Hylotelephium spectabile.
The site also documents fruiting species hardy across the state, including Asimina triloba, Diospyros virginiana, Morus rubra, several Prunus and Vaccinium species, and both wild and garden strawberries. All of these hardiness ranges come from the North Carolina Extension Gardener Plant Toolbox, a university extension database, crossed here against Kansas’s own 5b-7a zone range. They’re hardiness ranges specifically, and shouldn’t be confused with the separate apple variety adaptation ranges kept elsewhere on this site, which measure something different: how well a fruit variety performs, not whether a plant survives at all.