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Botanical Name: Lobelia Erinus 'Techno Upright Cobalt Blue'

Brand: Syngenta

Common Name: Techno®, Upright Cobalt Blue Lobelia

Cultivar: Techno Upright Cobalt Blue

Plant Type: Annual

Bred to withstand the summer heat, this series produces small vibrant blooms all season long, upright growth makes it ideal for containers, hanging baskets, borders and garden beds, attracts butterflies, little to no deadheading needed

Plant Categories: Annual, Bedding Plant, Sun-loving Annual

Landscape Application: Massing, Edging, Garden, Groundcover, Container, Basket

Water Requirements
Average To Moist

Sunlight Requirements
Full Sun To Partial Shade

Plant Height
12 Inches

Plant Width/Spread
20 Inches


Attracts Butterflies


Growth & Care

USDA Plant Hardiness Zone1a
Recommended Pruning MethodShould Not Need Pruning

Size & Shape

Growth RateFast
Plant FormUpright Spreading

Additional Categories

Additional CategoryLobelia


Foliage ShapeFerny


Flower ColorBlue
Flower PeriodFrom Early Spring To Late Summer

Landscape Attributes

Techno® Upright Cobalt Blue Lobelia is an herbaceous annual with an upright spreading habit of growth. 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 is a good choice for attracting butterflies to your yard. It has no significant negative characteristics.

Techno® Upright Cobalt Blue Lobelia is recommended for the following landscape applications,

Mass Planting, Border Edging, General Garden Use, Groundcover, Container Planting, Hanging Baskets

Ornamental Features

Techno® Upright Cobalt Blue Lobelia features dainty blue flowers with white eyes at the ends of the stems from early spring to late summer. Its tiny ferny leaves remain green in color throughout the season.

Planting & Growing

Techno® Upright Cobalt Blue Lobelia will grow to be about 12 inches tall at maturity, with a spread of 20 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 16 inches apart. 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 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.

Techno® Upright Cobalt Blue 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 larger 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.