Sea holly is a striking perennial that makes an eye-catching addition to a sunny garden. Native to Central and Eastern Europe ...

The carrot family contains an unexpectedly wide range of annuals, biennials, perennials ... raised from seed collected from your own garden may not resemble their parent plant.

However, tillage also buries weed seeds that may become dormant ... Fallow may also be used to control perennials such as Canada thistle and perennial sow-thistle. With these species, the first ...

However, Scotch thistle, and other biennials, does have some capacity to regrow if it is injured, like perennial ... each seed is attached to a pappus which allows it to be blown in the wind. When ...

European marsh thistle, a terrestrial and wetland herbaceous biennial in the Asteraceae family, is an invasive plant that prefers moist soils ... found with multiple flowers per stem wind dispersed ...

Canada thistle, a terrestrial herbaceous perennial in the Asteraceae family ... or lavender-colored flowers with flat bracts and pointed tips that bloom in June seed are fluffy, white tufts of hair ...