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A reference guide to 2,175 flowering plants — searchable by zone, season, bloom color, and care needs.
Click any period to filter the search above. The current month is highlighted in rust.
Toxicity, allelopathy, and aggressive spread are natural plant strategies. This section flags species that warrant extra consideration in the garden or landscape.
Plants with known toxicity to humans or livestock. Severity ranges from slight skin irritation to serious systemic risk.
These species release root or leaf chemicals that can inhibit the germination or growth of neighboring plants. Critical for companion planting.
Plants with moderate to rapid vegetative spread rates. May require physical containment or annual division to stay within bounds.
Invasive and noxious legal status data are not included in this dataset. Consult your state’s department of agriculture or local extension service for regional invasive species lists before planting.