Good luck! I'm not sure what kind I have they are the deep blue ones, and this year has been the best I have ever done with them, they are still so pretty and filled in a patio bed nicely. This is the first time I had them in the ground, I usually put them in pots, butI did what the other poster said, they get am sun and plenty of water. What surprises me is they are the yuckiest dirt, I can't even call it soil, and they are still pretty as can be living with red a deep purple petunias, creeping thyme and yellow marigolds.
You should be able to cut them back some, I wouldn't do a whole lot, and water well. My alyssum benefites from a good haircut once a month, comes back nice and full of blooms. What color should I paint the back of my bookshelves?? Should I use the same floor throughout the back of my house? What should I use for a back splash to match my granite. Should I paint my staircase?
Should I paint my stair case? I forgot to mention that I have mine in the ground also. I tried them in pots, but they didn't like the soil getting dry. At least in the ground you can mulch them and that soil holds the water better than hanging pots.
Herbivore, just remember to not let them dry out. Are yours in pots or the ground? In about a week you could give them some fertilizer. Let them recover a little from their 'haircut'. Maidinmontana, that sounds like a really good combination you have. I have mine in a raised bed, with yellow and deep red ever blooming begonias, white aslyssum and a purple leaf heuchera. They are starting to hang over the edge now and I just love that. These blue lobelia are one of my favorite annuals that I have to have every year.
I find that the lobelia I buy in the spring poops out by mid July. Snip at an angle, so water will run off the cut if it rains. Alternatively, shear back the entire plant by half once the flowers have finished blooming and begun to dry out in midsummer.
Lobelia is a short-lived perennial that lasts only a few years in the garden, so many gardeners leave a flower stalk or two in place to set seed to collect and sow the following season.
Lobelia dies back with the frost each year. The dead growth looks untidy, but it serves an important function for overwintering lobelia in the garden. Both Cornell University and Oregon State University Extension recommend leaving the frost-damaged growth in place during the winter months to insulate and protect the lobelia's roots.
The growth can be removed in the spring of the following year after the ground warms up and new growth begins to appear at the base of the plants.
Cutting at a degree angle, snip off the old growth as close to the base as possible using sterilized, sharp pruning shears, taking care not to snip off the new foliage unfurling at the base of the old stems. Lobelia, or Lobelia erinus, is an annual plant that produces delicate blossoms in shades of blue, white, pink or purple.
Commonly grown as a groundcover or hanging plant, lobelia requires well-drained soil and full sunlight to partial shade. Cutting back a lobelia plant will increase the blooming season and increase the number of new blossoms.
Pinch back the tips of the young lobelia plants when you purchase them from the nursery. Without this initial pinching, the stems can grow long and make the plant look leggy and unkempt.
Use your fingertips or a pair of sharp pruning shears to remove just the outside tip of each stem. Water the lobelia to keep the soil slightly moist at the depths of the roots. Allow the surface of the soil to dry out slightly between watering sessions. Bedding lobelia Bedding plants should be planted out at the end of May or early June, after the fear of any frosts. If you have a greenhouse or other protected growing area, you can plant up containers and hanging baskets earlier for the plants to grow on and so flower earlier, before putting outside in early summer.
Does lobelia like sun or shade? 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. They also prefer moist, rich soil. Does lobelia bloom all summer? The foliage and flowers are delicate, but lobelia flowers in abundance, blooming all summer right until frost.
In spring and fall lobelias grow well in full sun. However, in summer the sun may be too strong for this plant and some shade will help keep it in bloom. How do you keep violas blooming? Many people grow them as annuals, replacing them every year. You can grow them for spring bloom or fall bloom or both, if you can keep them alive during the summer.
Should violas be deadheaded? Yes removing the spent blooms will keep the plant from setting seeds and will continue to bloom until the summer heat. How often do you water lobelia?
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