Regional Native Plants on NativeYardAtlas.com

Hardiness Zone Versus Native Status in Alberta

Thu, 29 Oct 2026 00:00:00 +0000

Hardiness Zone Versus Native Status in Alberta

A plant may survive Alberta winters without being native to Alberta, and a species native somewhere in the province may not suit your garden. Start by treating hardiness and nativity as separate questions.

How to Read Native-Plant Range Maps and Records

Thu, 29 Oct 2026 00:00:00 +0000

How to Read Native-Plant Range Maps and Records

A colored map is not one kind of evidence. Before using it for a garden decision, identify what the source mapped and which place the result represents.

A historic range or county list summarizes where a taxon was understood to occur under that source’s rules and date.
A specimen or observation map shows documented records. Check the record date, locality, and coordinate precision; one record does not show continuous occupancy.
A checklist may state that a taxon is native somewhere in a province or state without assigning it to every county.
A modeled distribution predicts suitable or expected habitat under a method. It is not the same as a collected specimen.
An ecoregion describes environmental context, while a hardiness zone describes climate relevant to winter survival. Neither is a species-range result.
A conservation layer may emphasize rare or tracked features rather than inventorying common plants.

Read the legend and metadata before interpreting color or blank space. The Michigan Flora map guidance explains that many specimen points were retrospectively georeferenced from locality descriptions and are approximate. Fuzzy centroid symbols can stand for records without usable coordinates; sensitive rare-plant locations may be generalized, and extirpated points are historical. Its county richness page also explains that collection effort varies, so a lower total is not evidence that a plant is absent.

Native Plants by ZIP Code in Pennsylvania: Why County Range Matters

Thu, 29 Oct 2026 00:00:00 +0000

Native Plants by ZIP Code in Pennsylvania: Why County Range Matters

A ZIP code makes a search convenient, but the plant source may resolve it to a county or another broader unit. Before using a result, note that geography and what the source means by “native.”

Native Plants for Southeast Michigan: Ecoregion, County Range, and Hardiness

Thu, 29 Oct 2026 00:00:00 +0000

Native Plants for Southeast Michigan: Ecoregion, County Range, and Hardiness

A ZIP code or county is a useful starting point, but first check which geography the result actually represents. A ZIP-based tool may return a county. An EPA ecoregion adds broad landscape context; it does not list every plant native to that county or show what grows in one yard.

Native Plants for Southern Ontario: Ecozone, Municipality, and Hardiness

Thu, 29 Oct 2026 00:00:00 +0000

Native Plants for Southern Ontario: Ecozone, Municipality, and Hardiness

A municipality or regional municipality helps you describe where you are searching, but its boundary is administrative. It does not define one ecological setting or one complete native-plant list. Use a current map or data layer for the actual point before attaching an ecological label to a property.

Pennsylvania Keystone Shrubs by Ecoregion

Thu, 29 Oct 2026 00:00:00 +0000

Pennsylvania Keystone Shrubs by Ecoregion

Penn State Extension’s keystone-shrub table groups selected shrubs by Pennsylvania’s five EPA Level II ecoregions: 5.3, 8.1, 8.3, 8.4, and 8.5. Use the current EPA ecoregion map to identify the unit for your place, then compare that code with the Penn State table.

These are wildlife-priority selections, not a complete list of native shrubs, a county occurrence map, or a guarantee that a plant fits a particular yard. Examples from the table include:

Which Regional Plant Source Should I Use?

Thu, 29 Oct 2026 00:00:00 +0000

Which Regional Plant Source Should I Use?

Choose the source after naming the question. A tool that helps select plants for a garden may not be an occurrence atlas, and a map that shows occurrences may not say whether those plants are native.