DRAFT DOCUMENT β For Review and Discussion Only
This document has not been approved or adopted by the Cedar Lake Tree Board or the Town of Cedar Lake Plan Commission. It is circulated for internal review and discussion purposes only and is subject to change. Do not cite or distribute as official Town policy.
Town of Cedar Lake, Lake County, Indiana
Preferred Tree Guide
Non-Invasive Trees for Lake County, Indiana
Introduction
Trees alter the environment in which we live by moderating climate, improving air quality, conserving water, and harboring wildlife. They also add beauty and lasting value to property. However, no single tree is right for every location β and in Lake County, the wrong tree is often chosen, leaving property owners with problems rather than pleasure.
Tree planting is one of the best long-term investments a property owner can make. Not only will you benefit from the trees you plant today, but your children, grandchildren, and possibly their grandchildren will enjoy them as well.
This guide is intended to help Cedar Lake residents, contractors, and developers select appropriate trees for their specific site conditions, available space, and landscape objectives. Every species listed in this guide has been evaluated for suitability in Northwest Indiana and is considered non-invasive.
Understanding Site Conditions
Trees grow best on sites that meet their needs. Before selecting a tree, gather basic information about your planting site:
- Soil texture β Most of Lake County is dominated by clay soils with small pore spaces. North of Ridge Road, sandy soils begin to appear. Know your soil type before selecting a species.
- Moisture β Is the site wet, dry, or well-drained? Does water stand for more than 48 hours after a heavy rain?
- Sunlight β Does the area receive full sun (6+ hours), partial sun (3β6 hours), or mostly shade?
- Space β How much room is available for mature height and canopy spread? Consider both overhead and underground utilities before planting.
- Intended use β Shade, screening, wildlife habitat, ornamental interest, or a combination?
Lake County falls within USDA Hardiness Zone 5a to 5b, based on average annual minimum temperatures. Cedar Lake’s location in the northernmost tier of Indiana means winters can be more severe than central or southern Indiana, with less moderating effect from the Gulf of Mexico and greater influence from Lake Michigan weather systems. All species in this guide are reliably hardy in Zone 5.
Planting Objectives
Most tree plantings serve more than one purpose. Think about your primary goal and then look for species that also meet secondary objectives.
Shade and Energy Savings
- Plant large or medium deciduous trees on the west and southwest sides of buildings to reduce summer cooling costs.
- Evergreens on the north and northwest sides can reduce winter heating costs by blocking prevailing winds.
Wildlife Habitat
- Native oaks, serviceberries, and hackberries are among the most valuable wildlife trees β supporting hundreds of species of caterpillars, birds, and pollinators.
- Choose species with berries, nuts, or seeds that provide food sources across multiple seasons.
Water Quality and Erosion Control
- Plant long-lived trees in buffer zones near streams, lakes, and wetlands to trap sediment and absorb nutrients.
- Swamp White Oak, River Birch, Bald Cypress, Sweetgum, and Shumard Oak are all excellent choices for Cedar Lake’s wetter lots.
Screening and Privacy
- For year-round screening, Eastern Arborvitae and Eastern White Pine are native options with good wildlife value.
- For seasonal privacy with wildlife value, Nannyberry and Blackhaw Viburnum are excellent along property lines.
How to Use This Guide
Trees are organized into three size categories based on mature height. Growth rates and size vary considerably based on soil, moisture, and sunlight conditions.
| Category | Mature Height | Best Uses | Utility Line Caution |
|---|---|---|---|
| Small | Up to 25 feet | Near overhead utility lines, small lots, accent planting | Suitable for planting near or under overhead utility lines where mature height will not exceed 25 feet. Always verify local utility clearance minimums. |
| Medium | 25 to 40 feet | Yard shade, screening, residential plantings | Do not plant within 10 lateral feet of overhead utility lines. |
| Large | 40 feet and above | Parks, large yards, canopy restoration | Do not plant within 20 lateral feet of overhead utility lines. |
The following legend explains codes used in the species tables:
| Sun Code | Meaning | Best Use Code | Meaning |
|---|---|---|---|
| Full Sun | 6 or more hours of direct sun per day | Yard / Large Lot | Needs generous space; best in open yards or parks |
| Part Sun | 3β6 hours of direct sun per day | Small Lot | Compact enough for tighter residential lots |
| Part Shade | Filtered or dappled light; 3β6 hours indirect | Screening | Suitable for privacy screening along property lines |
| Full Shade | Fewer than 3 hours of direct sun | Near Water | Tolerates wet soils; good near ponds, ditches, swales |
| Growth Rate | Woodland Edge | Shade-tolerant; good under or near larger trees | |
| Slow | Less than 12 inches per year | Accent / Specimen | Ornamental focal point; works in a variety of settings |
| Medium | 12β24 inches per year | Wildlife | Exceptional value for birds, pollinators, or mammals |
| Fast | More than 24 inches per year | ||
* Native Indiana species are shown in bold with an asterisk (*) in all species tables. Species marked with (*) are native to Indiana, though in some cases β such as Sweetgum and Bald Cypress β native range is limited to southern Indiana and does not extend to Lake County. These species perform well in NWI conditions and remain recommended; their notes reflect the distinction.
Small Trees β Up to 25 Feet
Small trees are an excellent choice in smaller yards and as accent or ornamental plantings. Small trees are the correct choice for utility corridors and tight lots β they are suitable for planting near or under overhead utility lines where their mature height will not exceed 25 feet. Always verify local utility clearance minimums with your utility provider before planting.
| Common Name | Scientific Name | Mature Height | Mature Spread | Growth Rate | Sun | Best Use | Notes |
|---|---|---|---|---|---|---|---|
| Shadowblow Serviceberry* | Amelanchier canadensis | 15β20 ft | 10β15 ft | Medium | FullβPart Sun | Small Lot / Wildlife | White spring flowers; red berries; brilliant fall color. Excellent for rain gardens and bird habitat. |
| Apple Serviceberry Hybrids | Amelanchier Γ grandiflora | 15β25 ft | 10β20 ft | Medium | FullβPart Sun | Small Lot / Wildlife | Cultivars ‘Princess Diana’ and ‘Autumn Brilliance’ recommended. Multi-season interest; adaptable to NWI clay. |
| Allegheny Serviceberry* | Amelanchier laevis | 15β25 ft | 10β15 ft | Medium | FullβPart Sun | Woodland Edge / Wildlife | Native woodland edge tree. White flowers, edible berries, excellent orange fall color. |
| Eastern Redbud* | Cercis canadensis | 20β30 ft | 25β35 ft | Medium | FullβPart Sun | Yard / Small Lot / Accent | Magenta-pink spring blooms before leaves emerge. Tolerates NWI clay soils well. Very popular ornamental. |
| American Hornbeam* | Carpinus caroliniana | 20β35 ft | 20β30 ft | Slow | PartβFull Shade | Woodland Edge / Near Water | Slow-growing and very tough. Excellent fall color; muscular blue-gray bark. Tolerates wet soils. |
| Thornless Cockspur Hawthorn* | Crataegus crus-galli ‘Inermis’ | 20β30 ft | 20β30 ft | Medium | Full Sun | Yard / Wildlife | Thornless cultivar only. White flowers; persistent red berries; brilliant fall color. Good wildlife value. |
| Washington Hawthorn* | Crataegus phaenopyrum | 20β25 ft | 20β25 ft | Medium | Full Sun | Yard / Screening / Wildlife | Dense branching. Attractive orange-red fall color; clusters of small red berries persist into winter. |
| Winter King Hawthorn* | Crataegus viridis ‘Winter King’ | 20β35 ft | 20β25 ft | Medium | Full Sun | Yard / Wildlife | Highly recommended for NWI. Persistent berries; attractive exfoliating bark. Four-season interest. |
| Pagoda Dogwood* | Cornus alternifolia | 15β25 ft | 20β32 ft | Medium | Part Shade | Woodland Edge / Wildlife | Distinctive horizontal branching. White flower clusters; blue-black fruit; good fall color. |
| Flowering Dogwood* | Cornus florida | 15β25 ft | 15β20 ft | Slow | Part Shade | Woodland Edge / Accent | Classic spring flowering tree. Plant on sheltered sites in NWI only. Brilliant red fall berries. |
| Kousa Dogwood | Cornus kousa | 15β25 ft | 15β20 ft | Slow | FullβPart Sun | Yard / Small Lot / Accent | Non-native, non-invasive; more disease-resistant than Flowering Dogwood. Showy white bracts; raspberry-like fruit. |
| Fringetree* | Chionanthus virginicus | 15β20 ft | 12β20 ft | Slow | FullβPart Sun | Accent / Wildlife | Outstanding native; fragrant, feathery white flower clusters in late spring. Dark blue fruit attracts birds. Recommended by INPS. |
| Paw Paw* | Asimina triloba | 15β20 ft | 7β12 ft | Slow | PartβFull Shade | Woodland Edge / Wildlife | Indiana’s largest native fruit tree. Edible banana-like fruit; interesting spring flowers. Best in a sheltered spot with some moisture in NWI. |
| Flowering Crabapple | Malus sp. (disease-resistant) | 15β25 ft | 15β20 ft | Medium | Full Sun | Yard / Small Lot / Accent | Disease-resistant cultivars only (e.g., ‘Prairie Fire’, ‘Royal Raindrops’). Avoid unimproved seedling types. |
| Paperbark Maple | Acer griseum | 20β30 ft | 15β25 ft | Slow | FullβPart Sun | Accent / Small Lot | Stunning cinnamon-colored exfoliating bark year-round. Excellent four-season ornamental specimen. |
| Japanese Tree Lilac | Syringa reticulata | 20β30 ft | 15β20 ft | Medium | Full Sun | Yard / Small Lot / Accent | Cultivar ‘Ivory Silk’ recommended. Late-season creamy white fragrant flower clusters. Tough urban performer. |
| Dwarf Chinquapin Oak* | Quercus prinoides | 5β20 ft | 5β20 ft | Slow | Full Sun | Yard / Wildlife | Shrubby oak for dry, rocky, or sandy soils north of Ridge Road. Excellent wildlife and pollinator value. |
| Nannyberry Viburnum* | Viburnum lentago | 15β18 ft | 6β12 ft | Medium | FullβPart Sun | Screening / Wildlife | Fragrant white flowers; blue-black berries; reddish-purple fall color. Excellent for birds. |
| Blackhaw Viburnum* | Viburnum prunifolium | 12β15 ft | 6β12 ft | Slow | FullβPart Shade | Small Lot / Woodland Edge / Wildlife | White spring flowers; blue-black berries; excellent fall color. Very adaptable to NWI conditions. |
| Witchhazel* | Hamamelis virginiana | 10β20 ft | 10β15 ft | Slow | FullβPart Shade | Woodland Edge / Accent | One of the only trees to bloom in late fall to early winter. Spidery yellow flowers; excellent fall color. Tolerates wet or dry soils. Recommended by INPS. |
| Vernal Witchhazel* | Hamamelis vernalis | 6β10 ft | 6β10 ft | Slow | FullβPart Shade | Woodland Edge / Accent | Blooms in late winter to early spring. Fragrant yellow to red flowers. Excellent companion to Common Witchhazel for extended late-season interest. |
Native Indiana species are shown in bold with an asterisk (*). Best Use codes are defined in the legend above. Small trees are suitable for planting near or under overhead utility lines. Always verify clearance minimums with your utility provider.
Medium Trees β 25 to 40 Feet
Medium trees provide excellent shade for residential yards. Confirm mature height against overhead utilities before planting. Do not plant medium trees within 10 lateral feet of overhead utility lines.
| Common Name | Scientific Name | Mature Height | Mature Spread | Growth Rate | Sun | Best Use | Notes |
|---|---|---|---|---|---|---|---|
| Autumn Flame Red Maple* | Acer rubrum ‘Autumn Flame’ | 35β45 ft | 25β35 ft | Fast | FullβPart Sun | Yard / Near Water | Consistent early red fall color. Tolerates a wide range of soils including wet NWI clay sites. |
| Hedge Maple | Acer campestre | 25β35 ft | 25β35 ft | Medium | FullβPart Sun | Yard / Small Lot | Tough urban performer; tolerates clay, drought, and compaction. Clean yellow fall color. |
| River Birch* | Betula nigra | 30β50 ft | 25β35 ft | Fast | FullβPart Sun | Near Water / Yard | Exfoliating salmon-pink bark; excellent resistance to birch borer. Thrives in NWI wet soils. |
| American Hophornbeam* | Ostrya virginiana | 25β40 ft | 15β30 ft | Slow | PartβFull Shade | Yard / Woodland Edge | Highly recommended for NWI. Hop-like fruit clusters; attractive shaggy bark; very low-maintenance. |
| European Hornbeam | Carpinus betulus ‘Fastigata’ | 30β40 ft | 15β20 ft | Slow | FullβPart Sun | Yard / Screening | Upright columnar habit. Tolerates pruning well; disease-free. Clean yellow fall color. |
| Yellowwood* | Cladrastis kentukea | 30β50 ft | 40β55 ft | Medium | Full Sun | Yard / Large Lot / Accent | Fragrant white flower clusters in late spring. Beautiful vase form; bright yellow fall color. Slower to establish in NWI but worth the wait. |
| Golden Raintree | Koelreuteria paniculata | 30β40 ft | 30β40 ft | Medium | Full Sun | Yard / Accent | Yellow summer flowers; papery seed pods. Source from northern nurseries only for NWI Zone 5 hardiness. |
| Sassafras* | Sassafras albidum | 40β50 ft | 25β40 ft | Medium | Full Sun | Yard / Wildlife | Outstanding multi-color fall foliage β yellow, orange, red, and purple on the same tree simultaneously. Can spread by root suckers; site away from lawn edges. |
| Scarlet Hawthorn* | Crataegus coccinea | 20β35 ft | 15β20 ft | Medium | Full Sun | Yard / Wildlife | Brilliant scarlet fall berries and foliage. Thorny branching provides good wildlife nesting cover. |
| Ohio Buckeye* | Aesculus glabra | 20β40 ft | 20β40 ft | Medium | FullβPart Sun | Yard / Large Lot / Wildlife | Bold compound leaves; showy spring flower spikes; large buckeye nuts. Native and very adaptable. |
| Magnolia (select cultivars) | Magnolia species | 25β40 ft | 20β30 ft | Medium | FullβPart Sun | Yard / Accent | Choose cold-hardy cultivars such as ‘Merrill’ or ‘Galaxy’. Spectacular spring bloom. |
| Lacebark Elm | Ulmus parvifolia | 40β50 ft | 35β40 ft | Medium | Full Sun | Yard / Large Lot | Non-native, non-invasive; excellent disease resistance; attractive mottled exfoliating bark. Different from problematic American and Siberian Elms. |
| Eastern Arborvitae* | Thuja occidentalis | 30β40 ft | 10β15 ft | Slow | FullβPart Sun | Screening / Wildlife | Native evergreen; outstanding bird cover and nesting habitat. Not recommended for street planting due to sight obstruction. Excellent for screening on residential lots. Recommended by INPS. |
Native Indiana species are shown in bold with an asterisk (*). Do not plant medium trees within 10 lateral feet of overhead utility lines.
Large Trees β 40 Feet and Above
Large trees are the backbone of a healthy urban canopy. They provide the greatest cooling benefit, the most wildlife habitat, and the most carbon sequestration. Plant large trees wherever space allows.
| Common Name | Scientific Name | Mature Height | Mature Spread | Growth Rate | Sun | Best Use | Notes |
|---|---|---|---|---|---|---|---|
| Red Maple* | Acer rubrum | 40β70 ft | 30β50 ft | Fast | FullβPart Sun | Yard / Large Lot / Near Water | Cultivars ‘Armstrong’, ‘October Glory’, ‘Red Sunset’, ‘Northwood’ recommended. Brilliant fall color; tolerates wet soils. |
| Black Maple* | Acer nigrum | 60β75 ft | 40β50 ft | Medium | Full Sun | Yard / Large Lot | Very similar to Sugar Maple; slightly more heat and drought tolerant. Outstanding fall color. Cultivar ‘Greencolumn’ for narrower sites. |
| Sugar Maple* | Acer saccharum | 60β75 ft | 40β50 ft | Medium | Full Sun | Yard / Large Lot | Classic Indiana shade tree. Spectacular fall color; needs well-drained soil. Do not plant too deep. Cultivars ‘Green Mountain’, ‘Legacy’, ‘Bonfire’ recommended. |
| Common Hackberry* | Celtis occidentalis | 40β60 ft | 40β60 ft | Medium | Full Sun | Yard / Large Lot / Wildlife | Extremely adaptable to NWI clay, drought, and wind. Warty bark; small purple berries; excellent wildlife value. |
| Hickories* | Carya spp. (Bitternut, Pignut, Mockernut) | 60β80 ft | 35β50 ft | Slow | Full Sun | Yard / Large Lot / Wildlife | Native Indiana trees with exceptional wildlife value. Slow-growing; best planted young due to deep taproot. Very long-lived. Bitternut for wet soils; Pignut and Mockernut for well-drained sites. |
| Ginkgo | Ginkgo biloba | 50β80 ft | 30β40 ft | Slow | Full Sun | Yard / Large Lot | Male clones only β female trees produce malodorous fruit. Fan-shaped leaves; brilliant yellow fall color. Very long-lived and extremely pest-resistant. |
| Thornless Honeylocust* | Gleditsia triacanthos inermis | 40β70 ft | 30β50 ft | Fast | Full Sun | Yard / Large Lot | Thornless and podless cultivars only (‘Imperial’, ‘Shademaster’, ‘Skyline’, ‘Sunburst’). Fine-textured foliage; casts light shade; very adaptable to NWI conditions. |
| Kentucky Coffeetree* | Gymnocladus dioica | 60β75 ft | 40β50 ft | Medium | Full Sun | Yard / Large Lot / Wildlife | Underused NWI native. Bold winter silhouette; male clones or seedless cultivars preferred. Very drought-tolerant once established. |
| Sweetgum | Liquidambar styraciflua | 60β75 ft | 30β50 ft | Medium | FullβPart Sun | Yard / Large Lot / Near Water | Stunning multi-colored fall foliage. Cultivar ‘Moraine’ preferred; all cultivars produce some spiny fruit. Native to southern Indiana river bottoms, not to Lake County, but performs well in NWI wet and clay sites. |
| Tulip Tree* | Liriodendron tulipifera | 70β90 ft | 35β50 ft | Fast | Full Sun | Yard / Large Lot | Tallest native Indiana tree. Distinctive tulip-shaped flowers; large spreading crown. Needs adequate space; site away from streets and small lots. |
| Cucumbertree Magnolia* | Magnolia acuminata | 60β80 ft | 30β40 ft | Medium | FullβPart Sun | Yard / Large Lot | Largest native magnolia. Yellow-green spring flowers; interesting cucumber-shaped fruit. Good lawn and park tree. |
| Blackgum / Tupelo* | Nyssa sylvatica | 30β50 ft | 20β35 ft | Slow | FullβPart Sun | Near Water / Wildlife | Outstanding deep red to scarlet fall color β often the first tree to turn. Tolerates wet soils; excellent wildlife value. |
| Eastern White Pine* | Pinus strobus | 50β80 ft | 35β45 ft | Fast | Full Sun | Yard / Screening / Wildlife | Native evergreen; soft blue-green needles. Fast-growing screening tree; excellent wildlife cover. For yard use only β not recommended near streets due to size and branch drop. |
| White Oak* | Quercus alba | 50β80 ft | 50β80 ft | Slow | Full Sun | Yard / Large Lot / Wildlife | Majestic long-lived native. Critical habitat for caterpillars and wildlife. Rounded crown; wine-red fall color. |
| Swamp White Oak* | Quercus bicolor | 50β60 ft | 50β60 ft | Medium | Full Sun | Near Water / Yard / Wildlife | Excellent for wet or clay NWI sites. Exfoliating bark; good fall color. Highly recommended for Cedar Lake. |
| Scarlet Oak* | Quercus coccinea | 50β75 ft | 40β60 ft | Medium | Full Sun | Yard / Large Lot | Brilliant scarlet fall color, often the most vivid of the oaks. Good urban performer. |
| Shingle Oak* | Quercus imbricaria | 40β60 ft | 40β60 ft | Medium | Full Sun | Yard / Large Lot | Unusual unlobed oak leaves; retained brown leaves through winter add seasonal interest. Very tough; tolerates clay. |
| Bur Oak* | Quercus macrocarpa | 60β80 ft | 60β80 ft | Medium | Full Sun | Yard / Large Lot / Wildlife | Most drought and fire-resistant native oak. Distinctive fringed acorns. Needs generous space. Very long-lived; excellent anchor tree for large properties. |
| Chinquapin Oak* | Quercus muehlenbergii | 40β60 ft | 40β60 ft | Medium | Full Sun | Yard / Large Lot / Wildlife | Toothed leaves resemble chestnut. Excellent on dry, rocky, or alkaline soils. Strong wildlife value. |
| Northern Red Oak* | Quercus rubra | 60β75 ft | 45β60 ft | Medium | Full Sun | Yard / Large Lot / Wildlife | Fast-growing for an oak; reliable red fall color. Very adaptable; one of the best choices for NWI yards. |
| Shumard Oak* | Quercus shumardii | 40β60 ft | 35β50 ft | Medium | Full Sun | Near Water / Yard | Deep crimson fall color. Tolerates compacted, wet, or clay soils better than most oaks. Good NWI performer. |
| Bald Cypress | Taxodium distichum | 50β70 ft | 20β30 ft | Medium | Full Sun | Near Water / Yard | Deciduous conifer; feathery needles turn russet in fall. Thrives in wet soils; also tolerates dry conditions once established. Native to southern Indiana, not to Lake County, but highly recommended for Cedar Lake’s wetter lots. |
| American Linden / Basswood* | Tilia americana | 60β80 ft | 35β50 ft | Medium | FullβPart Sun | Yard / Large Lot / Wildlife | Fragrant summer flowers beloved by pollinators. Cultivars ‘Boulevard’ and ‘Redmond’ recommended. |
| Littleleaf Linden | Tilia cordata | 50β70 ft | 30β40 ft | Medium | FullβPart Sun | Yard / Large Lot | Excellent urban performer; fragrant flowers; neat pyramidal form. Cultivars ‘Glenleven’, ‘Greenspire’ recommended. |
| Disease-Resistant American Elm* | Ulmus Γ (hybrid) | 60β80 ft | 60β70 ft | Fast | Full Sun | Yard / Large Lot | Disease-resistant cultivars only: ‘Homestead’, ‘Princeton’, ‘Morton’. Recaptures the classic elm form without Dutch elm disease risk. |
| Zelkova | Zelkova serrata ‘Green Vase’ | 50β80 ft | 40β50 ft | Medium | Full Sun | Yard / Large Lot | Vase-shaped; elm-like but disease-free. Orange-red fall color. ‘Green Vase’ cultivar recommended. |
| Horse Chestnut | Aesculus hippocastanum | 50β75 ft | 40β60 ft | Medium | Full Sun | Yard / Large Lot | Showy white flower candles in spring; large palmate leaves; spiny chestnut husks in fall. Excellent specimen tree for large properties. |
| Dawn Redwood | Metasequoia glyptostroboides | 75β100 ft | 25β35 ft | Fast | Full Sun | Yard / Large Lot | Deciduous conifer; not native but not invasive. Feathery soft needles turn russet in fall. Distinctive pyramidal form; becomes a very large tree at maturity. Hardy to Zone 4. |
| Katsura Tree | Cercidiphyllum japonicum | 40β60 ft | 25β40 ft | Medium | FullβPart Sun | Yard / Accent | Heart-shaped leaves smell of caramel in fall. Elegant form; reliable Zone 5 performer. Can reach 60 ft at maturity β allow adequate space. |
Native Indiana species are shown in bold with an asterisk (*). Do not plant large trees within 20 lateral feet of overhead utility lines. Large trees should be sited at least 4β8 feet from sidewalks and curbs.
Trees to Avoid
The following trees are not recommended for planting in Cedar Lake. They have been identified as invasive, disease-prone, structurally weak, or otherwise problematic for Lake County conditions. Selecting the right tree from the start is far less costly than dealing with a problem tree or its eventual removal.
| Common Name | Scientific Name | Why to Avoid |
|---|---|---|
| Silver Maple | Acer saccharinum | Invasive surface roots damage sidewalks, foundations, and utilities; weak, brittle wood breaks in storms. Fast growth is its only attribute. |
| Boxelder | Acer negundo | Weak wood; invasive seeding; host to boxelder bugs. Short-lived and generally a nuisance tree. |
| Norway Maple | Acer platanoides | Formerly popular landscape tree, now invasive in Indiana. Heavy seed production crowds out native understory plants. |
| Amur Maple | Acer ginnala | Now considered invasive in the Midwest due to prolific seeding. Formerly on recommended lists β no longer appropriate to plant. |
| Tree of Heaven | Ailanthus altissima | Highly invasive; spreads aggressively by seed and root sprouts. Releases chemicals that inhibit surrounding plants. Remove if found on your property. |
| White Paper Birch | Betula papyrifera | Bronze birch borer and root rot virtually guarantee tree death within 10 years in NWI. River Birch is the correct birch for this region. |
| American Beech | Fagus grandifolia | A magnificent native tree, but Beech Leaf Disease has been confirmed spreading through Lake County and is now devastating beech populations regionwide. Not recommended for new planting at this time pending further research into resistant cultivars. |
| Catalpa | Catalpa speciosa | Messy large seed pods; attracts catalpa sphinx caterpillar; relatively short-lived. Not recommended for residential planting in NWI. |
| Ash (all species) | Fraxinus spp. | Do NOT plant. All ash trees are at extreme risk from the Emerald Ash Borer, which has devastated ash throughout Lake County. Existing ash trees should be assessed and treated or removed. |
| Black Walnut | Juglans nigra | Produces juglone, a chemical toxic to many plants within 50β80 ft. Messy large fruit. Can be retained if already established but not recommended for new residential planting near gardens. |
| White / Common Mulberry | Morus alba | Invasive; prolific seeding; stains surfaces and clothing with messy fruit. Displaces native species. |
| Lombardy Poplar | Populus nigra ‘Italica’ | Canker disease and insects virtually guarantee death within 15 years. Very short-lived; not worth planting. |
| Cottonwood | Populus deltoides | Weak, brittle wood; invasive roots near utilities and foundations; cottony seed clogs gutters and HVAC intakes. |
| Callery / Bradford Pear | Pyrus calleryana (all cultivars) | Classified as invasive under Indianaβs Terrestrial Invasive Plant Rule (312 IAC 18-3-26); its sale and distribution are now illegal in Indiana. Cross-pollination between cultivars produces viable seed that has spread widely. Do not plant Bradford, Cleveland Select, Chanticleer, or any other Callery Pear variety under any trade name. |
| Black Locust | Robinia pseudoacacia | Invasive root sprouts form thickets; highly susceptible to locust borer; prone to cankers. Spreads aggressively in disturbed soils. |
| Willow (all species) | Salix spp. | Invasive roots infiltrate sewer, water, and drain tile lines; weak wood fractures in storms. Keep away from any structures or utilities. |
| Siberian / Slippery / American Elm (unimproved) | Ulmus spp. | Susceptible to Dutch elm disease, elm leaf beetle, and other pests. Only disease-resistant hybrid cultivars (e.g., ‘Princeton’, ‘Morton’) are acceptable β see Large Trees list. |
| Mountain Ash | Sorbus spp. | Thin bark makes it highly susceptible to sunscald, fungal canker, and borers. Virtually guaranteed to fail in NWI within 5β15 years. |
| Royal Empress / Princess Tree | Paulownia tomentosa | Highly invasive; can produce up to 20 million seeds per year. Listed as a watch species in Indiana. Do not plant under any circumstances. |
| Pin Oak | Quercus palustris | Iron chlorosis is severe on NWI’s alkaline clay soils, often leading to tree death. Excellent species only where soil is known to be acidic. |
Note: Several species on this list β Bradford Pear, Royal Empress, Norway Maple, Amur Maple β were once commonly sold at nurseries and may appear on older recommended lists. Callery Pear (all cultivars) is now classified as invasive under Indianaβs Terrestrial Invasive Plant Rule, making its sale and distribution illegal statewide.
General Planting Tips
Before You Plant
- Call 811 to have all underground utilities located before digging. This is required by Indiana law.
- Verify local utility clearance minimums with your utility provider before selecting a planting location near overhead lines.
- Check the mature height and spread of your selected tree. Match the tree to the space β do not plan to keep it trimmed down to size.
- Consider your soil conditions. Many NWI soils are heavy clay; choose species tolerant of clay or amend the planting area appropriately.
Planting Properly
- Dig the planting hole 2 to 3 times the width of the root ball, but no deeper than the root ball height.
- Set the tree so that the root flare (where the trunk meets the roots) is at or slightly above grade. Never bury the root flare.
- Remove all wire baskets, burlap, and container materials before backfilling.
- Backfill with unamended native soil whenever possible. Do not add fertilizer to the planting hole.
- Water deeply immediately after planting and regularly throughout the first two growing seasons.
- Apply 2β3 inches of mulch over the root zone, keeping mulch at least 3 inches away from the trunk. Do not create mulch volcanoes.
Selecting Quality Trees
- Purchase trees from a reputable nursery. Inspect the tree for straight structure, healthy bark, and a well-developed root system.
- Avoid cheap or partially dead trees β they rarely recover.
- Avoid planting unknown seedlings that have volunteered in your yard. These are frequently invasive species such as Tree of Heaven, White Mulberry, or Black Locust.
- Fast-growing trees are almost always weak-wooded. Prioritize species known for structural integrity and longevity over rapid growth rate.
Additional Resources
For additional tree selection and planting guidance, the following resources are recommended:
- Indiana Native Plant Society (INPS) β includes the Grow Indiana Natives directory of INPS-certified native plant sources and garden designers.
- Purdue Extension β Urban Forestry resources
- Indiana Division of Forestry
- USDA Plant Database β native plant identification
- International Society of Arboriculture β find a certified arborist
- Morton Arboretum β tree selection tool and plant information
The Cedar Lake Tree Board is available to assist residents and local organizations with tree-related questions and resources. Contact the Tree Board at: treeboard@cedarlakein.gov