The perennial varieties of lobelia are primarily of two types: Lobelia cardinalis and Lobelia siphilitica. These beautiful plants are known for their ability to come back year after year, adding color and vibrancy to any garden or landscape. On the other hand, Lobelia erinus is an annual plant that is more commonly used as a tender bedding plant.
When it comes to growing lobelia, it is important to provide them with the right conditions. These plants thrive in a moist and humus-rich soil that is slightly acidic. This means that they prefer a soil that has a pH level between 5.5 and 6.5. If your soil is naturally alkaline, it may be necessary to amend it with organic matter or other additives to create a more suitable environment for lobelia.
In terms of sunlight, lobelia plants generally prefer partial shade to full sun. However, in hotter climates, they may benefit from some afternoon shade to protect them from the intense heat. It is important to note that lobelia plants are quite sensitive to heat and dry conditions, so it is crucial to keep them well-watered to ensure their health and longevity.
When it comes to propagating lobelia, the perennial varieties can be grown from seeds or propagated through division. Seeds can be sown indoors in early spring and then transplanted outdoors once the danger of frost has passed. Division can be done in the spring or fall by separating the clumps of the plant and replanting them in suitable locations.
One of my personal experiences with lobelia was when I planted a bed of Lobelia cardinalis in my garden. I had prepared the soil by adding organic matter to create a moist and well-draining environment. The plants thrived and produced beautiful spikes of brilliant red flowers that attracted hummingbirds and butterflies to my garden. I was amazed at how hardy and resilient the lobelia plants were, as they continued to bloom year after year, adding a stunning burst of color to my outdoor space.
The perennial varieties of lobelia, namely Lobelia cardinalis and Lobelia siphilitica, are the ones that come back year after year. These plants prefer a moist, humus-rich, slightly acidic soil and thrive in partial shade to full sun. Providing them with the right conditions and proper care will ensure their longevity and the beauty they bring to any garden or landscape.
