Is blue lobelia a perennial?
Just so, will lobelia survive winter?
Unlike its perennial cousins, annual lobelia dies back completely in the winter, though some types may grow from seed in the spring. Many annual lobelias are cold-tolerant and will survive longer into late fall or early winter than other types of annual flowers, but frost will kill them.
Additionally, how do you keep lobelia blooming? The lobelia produces prolific flowers.
- Place any hanging basket that contains trailing lobelia in full sunlight for the best growth.
- Water the hanging lobelia basket often to keep the soil moist but not waterlogged.
- Fertilize the hanging lobelia every other week using a general-purpose water-soluble fertilizer.
In respect to this, what do you do with lobelia in the winter?
- Trim back the dead and dying stems and leaves.
- Water thoroughly, then rake a thick layer of loose mulch over the rosette of leaves when frost is in the forecast.
- Move potted cardinal flowers into a garage or other sheltered location for the winter.
Do Lobelia plants spread?
Growing Lobelia Plant Annual lobelia will grow nearly anywhere. Lobelia seeds can be sown directly in the garden or indoors for later transplanting. These plants typically require an area with full sun but will tolerate partial shade. Spread the tiny seeds just on top of the soil and water thoroughly.