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Plant Search > Poison Hemlock

Poison Hemlock (Conium maculatum)

About Poison Hemlock

Poison Hemlock is a Herb. Herbs are broad-leaved, herbaceous (non-woody) plant. Herbaceous plants are also known as forbs or wildflowers

Plant Names (Nomenclature)

Common Plant Name Poison Hemlock
Scientific Plant Name Conium maculatum
Other Common Names
Other Scientific Names
Common Family Name Parsley
Scientific Family Name Apiaceae

Origin

Native Status U.S. Introduction Alien Species: Introduced to Kansas and the United States.

Growth Characteristics

Growth Habit/Form Herb Herbs are broad-leaved, herbaceous (non-woody) plant. Herbaceous plants are also known as forbs or wildflowers
Life Span Biennial Biennials are herbaceous plants that live two years, flowering the second
Maximum Height 6.0 feet height in feet
Maximum Spread 2.0 feet width in feet
Flower Color White, colors of the flowers
Flowering Season July - August typical months to expect blooms
Reproduction Seed Only methods of reproduction

Growth Requirements

Sun Exposure Full Sun Full Sun: direct sun 8 or more hours of the day
Part Sun: direct sun 4 to 8 hours of the day; about half a day of sun
Shade: direct sun 0 to 4 hours of the day
Soil Moisture Wet to Moist Wet: Soil is soggy or marshy
Moist: Soil tends to stay moist and rarely dries out
Medium: Average soil moisture, little or now slope
Drained: Soil is well drained, never soggy; medium slope
Dry: Soil is dry, often typical of rocky soil; steep slope

Images

Images of the plants' flowers, fruits, seeds, leaves, and stems are shown as all are useful in identifying plants.

Poison Hemlock (Conium maculatum)Poison Hemlock (Conium maculatum)Poison Hemlock (Conium maculatum)Poison Hemlock (Conium maculatum)