Cobalt Star™ Lobelia
Lobelia erinus 'Weslocostar'
Cobalt Star™ Lobelia flowers
(Photo courtesy of NetPS Plant Finder)
Height: 8 inches
Spacing: 10 inches
Hardiness Zone: (annual)
A lovely mounded variety with trailing tendencies, ideal for patio containers, hanging baskets and garden landscapes; features small fan shaped flowers sitting atop of glossy green foliage; fast growing and low maintenance
Cobalt Star™ Lobelia features dainty blue flowers with white eyes at the ends of the stems from mid spring to mid fall. Its tiny glossy narrow leaves remain green in colour throughout the season. The fruit is not ornamentally significant.
Cobalt Star™ Lobelia is an herbaceous annual with a mounded form. It brings an extremely fine and delicate texture to the garden composition and should be used to full effect.
This plant will require occasional maintenance and upkeep, and should not require much pruning, except when necessary, such as to remove dieback. It has no significant negative characteristics.
Cobalt Star™ Lobelia is recommended for the following landscape applications;
- Mass Planting
- Border Edging
- General Garden Use
- Container Planting
- Hanging Baskets
Planting & Growing
Cobalt Star™ Lobelia will grow to be about 8 inches tall at maturity, with a spread of 12 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 10 inches apart. Its foliage tends to remain low and dense right to the ground. 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 somewhat tolerant of urban pollution. 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.
Cobalt Star™ Lobelia is a fine choice for the garden, but it is also a good selection for planting in outdoor containers and hanging baskets. It is often used as a 'filler' in the 'spiller-thriller-filler' container combination, providing a mass of flowers against which the thriller plants stand out. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.