Plant Care Library

Description:

A vigorous variety, sure to thrive in any garden; free flowering with a well branched habit; attractive snow-white flowers over feathery foliage, gives an airy touch to the garden; best in full sun; deadhead to encourage new growth throughout the season

Ornamental Features

Purity Cosmos features showy white daisy flowers with yellow eyes at the ends of the stems from early summer to early fall. The flowers are excellent for cutting. Its ferny leaves remain green in color throughout the season.

Landscape Attributes

Purity Cosmos is an herbaceous annual with a mounded form. Its relatively fine texture sets it apart from other garden plants with less refined foliage.

This is a relatively low maintenance plant. Trim off the flower heads after they fade and die to encourage more blooms late into the season. It is a good choice for attracting birds, bees and butterflies to your yard. It has no significant negative characteristics.

Purity Cosmos is recommended for the following landscape applications;

• Mass Planting
• Rock/Alpine Gardens
• General Garden Use
• Container Planting

Planting & Growing

Purity Cosmos will grow to be about 3 feet tall at maturity, with a spread of 24 inches. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. This fast-growing annual will normally live for one full growing season, needing replacement the following year.

This plant does best in full sun to partial shade. 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. This is a selected variety of a species not originally from North America. It can be propagated by cuttings; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

Purity Cosmos is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. Because of its height, it is often used as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. It is even sizeable enough that it can be grown alone in a suitable container. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.