Cardoon
Description
Splendid arching silvery, spiny foliage is an architectural delight in the garden; careful when handling the spiny foliage; bold thistle-like flowers can be eaten like artichokes when unopened; leaf stalks edible if blanched; invasive in some regions
Landscape Attributes
Cardoon is an herbaceous perennial with an upright spreading habit of growth. Its relatively fine texture sets it apart from other garden plants with less refined foliage.
Cardoon is recommended for the following landscape applications;
Planting & Growing
Cardoon will grow to be about 5 feet tall at maturity, with a spread of 4 feet. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 10 years. As an herbaceous perennial, this plant will usually die back to the crown each winter, and will regrow from the base each spring. Be careful not to disturb the crown in late winter when it may not be readily seen!
This plant should only be grown in full sunlight. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments, and will benefit from being planted in a relatively sheltered location. This species is not originally from North America.