Bare branches in late winter and the first soft ground of spring are the signs that planting season has started in Wisconsin. Shade trees, ornamental trees and fruit trees all settle best when they go in while still dormant, with spring leading and early fall as a good second window for many hardwoods.
When Is the Best Time to Plant Trees in Wisconsin?
Shade and ornamental trees go in best in April and May, before the buds open, and September and October also work for many of them.
- In April, plant balled-and-burlapped and container trees as soon as the soil can be worked, so the roots begin growing before leaves demand water.
- In May, planting can continue for container trees, though the buds are opening and the new tree needs steady watering.
- Through summer, hold off, because heat and dry soil stress new roots more than at any other time of year.
- From September through early October, plant conifers and many hardwoods while the soil is still warm enough to encourage root growth.
- In September and early October, hardwoods can still go in, and a tree planted then is watered until the ground freezes.
Container-grown trees can go in during most of the year if you water them, but they settle best in the dormant season. Magnolia, dogwood, tuliptree, sweet gum, red maple, birch, hawthorn, poplars, cherries, plums and many oaks do better planted in spring than in fall. In Milwaukee, last spring frost falls between April 16 and April 29 and first fall frost between October 17 and October 29, while hardiness runs from zone 3b to 6a (USDA system) across the state. Lake Michigan delays fall freeze along the lakeshore, while inland southern Wisconsin freezes earlier and the north far earlier still.
Wisconsin — the year and the numbers
- State
- Wisconsin
- USDA zones
- 3b-6a
- Last spring frost
- April 16 to April 29
- First fall frost
- October 17 to October 29
- Annual rain
- 35 in
- Lawn zone
- cool-season
- Source
- NOAA NCEI 1991-2020 Climate Normals, 32F freeze probabilities · Milwaukee
When to Plant Fruit Trees in Wisconsin
Plant fruit trees in April and May, and for bare-root trees, do it while they are still dormant, before the buds open. Spring is the ideal time for bare-root stock, before the buds open.
A bare-root tree arrives without soil and with no leaves to feed, so it needs to meet the ground before it wakes up. A container tree is more forgiving, but the same dormant-season timing still helps it settle.
| Kind of fruit tree | When to plant in Wisconsin | Why then |
|---|---|---|
| Bare-root | April to May, before the buds open | The tree is dormant, so roots can establish before leaves need water |
| Container | April to May | It settles best in the dormant season, with regular watering after planting |
Pruning a newly planted fruit tree follows its own schedule, which is covered on the page about when to prune fruit trees in Wisconsin.
Best Trees to Plant in Wisconsin
Crabapples are the ornamental tree with the clearest track record here. Proven cultivars have been selected for good looks and disease resistance, and the trees accept a wide range of soils as long as the ground drains well.
For other shade and ornamental trees, choose by the room you have, the sun the spot gets and the hardiness zone where you live. Wisconsin spans zones 3b to 6a, so a tree that suits Madison may struggle in the far north.
| Tree | How it does in Wisconsin | Why |
|---|---|---|
| Crabapple | Proven cultivars perform well as landscape trees | Selected for ornamental value and disease resistance |
| Crabapple (any cultivar) | Grows in a wide range of soils | Tolerates many soils if they are well drained |
Look for crabapple cultivars described as disease resistant, since some narrow, upright types are highly susceptible to fireblight. Your county extension office can suggest other species that fit your soil and zone.
When to Plant, Water and Prune Trees in Wisconsin
The year splits into planting in spring or early fall, watering through the first season and any fall planting, and pruning fruit trees in late winter. Each job follows the tree’s dormancy.
Oaks are the exception to ordinary pruning habits. Leave them alone from March through October, to limit the spread of oak wilt.
| Task | Best timing in Wisconsin | Why then |
|---|---|---|
| Plant shade and ornamental trees | April to May, or September to early October | Roots grow in workable, warm soil without summer heat stress |
| Plant fruit trees | April to May, while dormant | Bare-root trees need to be in the ground before the buds open |
| Water a young tree | Regularly after planting, and in fall until the ground freezes | New roots dry out easily and need moisture to settle |
| Prune fruit trees | March to April, before bud break | The coldest weather has passed and the buds have not yet swelled |
Peaches are pruned last, closest to bloom, because their flower buds are easily hurt by cold, while apples go first. Avoid pruning fruit trees in fall or early winter, since new growth may not harden before the cold.
Where to Get Tree Advice in Wisconsin
University of Wisconsin–Madison Extension and your county extension office can help with choosing a species, checking a site or testing soil before you plant.
- The state extension service publishes planting and pruning guidance for home landscapes, useful before you order or buy a tree.
- Your county office can advise on a soil test and on which species suit your local ground, ideally before spring planting begins.
Common Questions
Can You Plant a Tree in Summer in Wisconsin?
You can, but a container tree will need careful watering through the heat. Waiting for April, May or September gives the roots an easier start.
Should You Remove Burlap from a Balled-and-Burlapped Tree?
Yes, remove wire baskets and loosen or cut away burlap once the tree is set in its hole, so roots can spread freely into the surrounding soil.
Which Crabapples Are Best for a Wisconsin Yard?
Choose cultivars known as proven performers for Wisconsin and described as disease resistant. Plant them where water drains well.