Techno® Cobalt Blue Lobelia

Techno® Cobalt Blue is a compact, spreading lobelia selected for a strong display of blue flowers. Syngenta’s [current product page](https://www.syngentaflowers.com/ams/product/flower/70069939) for code 70069939 is headed Techno® Dark Blue, while the page image identifies Techno Cobalt Blue; both labels appear with the same product code. ## Growing conditions The developer lists a 6–10 inch height and an 18–22 inch spread, with full sun or part sun and flowering from early spring into summer. [NC State Extension](https://plants.ces.ncsu.edu/plants/lobelia-erinus/) notes that Lobelia erinus is commonly grown as an annual and performs best in cool spring weather; heat and humidity may interrupt flowering. ## Garden use The mounding, spreading habit suits containers, hanging baskets, window boxes, edging, and the front of a mixed border. Blue flowers add a cool-toned seasonal accent and can draw visiting pollinators. ## Maintenance Water regularly and do not let the root ball dry out. After the first flush, shear or trim the plant lightly and continue watering to encourage fresh growth; avoid persistently soggy soil, which can lead to rot.