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Invasive Species Research Conference

Turning Science into Action! Co-hosted by Thompson Rivers University and the Invasive Species Council of BC. learn more »

Parrot's Feather

A popular aquatic garden plant that spreads with water currents, animals, boats/trailers and fishing gear. Dense stands can stagnate water, and increase breeding grounds for mosquitoes

Zebra/Quagga Mussels

These tiny freshwater mussels clog drains, damage infrastructure, and are very costly to control/eradicate learn more »

Giant Hogweed

A towering toxic invasive plant with WorkSafe BC regulations learn more »

We need your input

Help us review the last five years and plan for the future! learn more »

European Fire Ant

A tiny ant with a toxic sting learn more »

Purple Loosestrife

An aggressive wetland invader that threatens plant and animal diversity learn more »

Orange Hawkweed

Also yellow, these invasive plants replace native vegetation along roadsides, and threaten areas not yet reforested learn more »

Japanese Knotweed

Grows aggressively through concrete, impacting roads and house foundations learn more »

Spotted Knapweed

A single plant spreads rapidly with up to 140,000 seeds per square metre learn more »

Scotch Broom

An evergreen shrub that invades rangelands, replaces forage plants, causes allergies in people, and is a serious competitor to conifer seedlings learn more »

Wild Caraway

Species
Carum carvi

Wild caraway (Carum carvi) is a biennial plant that invades pastures, rangeland and natural areas and is identified by white groups of flowers at the top of several erect, branched stems that grows 60-90 cm tall. Alternate leaves are very finely divided and 'carrot-like.' Flowers are hermaphroditic and therefore self-fertile, and this plant is difficult to detect when not in flower. It develops a parsnip-like taproot with a black skin and white core.

Native to Eurasia, wild caraway entered Canada as a spice crop (used in rye breads and some liquors) but has escaped cultivation. Though edible, it is not utilized by livestock and can quickly displace nearby vegetation where infestations go uncontrolled. Infestations in forage crops have led to weed seed dispersal in baled hay. 

Wild caraway succeeds under forest canopy but not in complete shade, and can survive a light frost or extra moisture in the soil. 

Control wild caraway with repeated hand-pulling before seed-set. Seeds can scatter easily, so use a plastic bag to carefully place over mature plants and dispose at a landfill or thoroughly burned. Several years' of monitoring and removal is required to deplete the seed bank. Note that repeated mowing of wild caraway is not effective, as plants re-bloom below cutting height.

Gallery: Wild Caraway