Compact annual lobelia only needs to be spaced 4-6 inches apart. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and can grow in heavy clay soil. Blue Lobelia or Lobelia Siphilitica is an herbaceous perennial plant belonging to Campanulaceae family. It is a good choice for a flower along the edge of a garden or a pot, as it will bloom until mid-summer or fall depending. Also known as the trailing lobelia, this tender perennial grows as an annual species and features masses of vibrantly striking colored flowers that are yellow or white in the center. The plant is self-fertile. Plants are not heat tolerant but tend to revive in late … Annual lobelia will grow nearly anywhere. L. speciosa is more adaptable than other Lobelias to various soil types and moisture levels. Great for rock gardens or container plants, types include sky blue flower. Lobelia has a low, mounding or trailing form, making it ideal for the front of a border or in containers and hanging baskets. Unlike its perennial cousins, annual lobelia dies back completely in the winter, though some types may grow from seed in the spring. Lobelia inflata is a ANNUAL growing to 0.6 m (2ft) by 0.3 m (1ft in). Genus Lobelia can be annuals, perennials or shrubs, with simple leaves and showy 2-lipped flowers that may be solitary or in racemes or panicles Details L. cardinalis is an erect, clump-forming herbaceous perennial to 90cm in height, with rather glossy bright green oblong leaves and brilliant scarlet, two-lipped flowers 5cm in length in terminal spikes They are native to North America. Compact and popular, Lobelia erinus (Trailing Lobelia) is a tender perennial, usually grown as an annual, boasting masses of brightly colored flowers adorned with white or yellow throats from spring to the first frosts. It forms … Learn about lobelia. ... For experimental gardeners, water-lobelia or perennial-lobelia can be very interesting. This lobelia grows up to three feet in height. Lobelia is a common herbaceous annual garden flower that is compact and well behaved. But the noble Lobelia tupa is so architectural it deserves splendid isolation, perhaps as an dramatic outdoor pot plant on a terrace. These plants are easy to grow and grow well in cool weather conditions. Most perennial Lobelia seeds like moisture, making them ideal candidates for wetland areas like stream banks, swamps, or near ponds. Lobelia thrives in full sun but benefits from afternoon shade in hot climates. The cascading type is stunning, like a sapphire waterfall, spilling from window boxes or pots. Ideal for hanging baskets and window boxes due to its trailing habit. The Lobelia of gardens is a perennial of spreading habit in its native country, the colour of flowers varying from blue to pink or white.. These plants typically require an area with full sun but will tolerate partial shade. Also known as Sweet William or Pinks, dianthus blooms in a variety of colors, including white, pink, red, rose, lavender and yellow. Many species appear totally dissimilar from each other. Erect, annual or perennial herbs; leaves alternate, simple; flowers white, scarlet, or blue, 5-parted, tubular and irregular-shaped with 2 lips; fruit a capsule. Annual Lobelias. Perennial lobelia (Lobelia cardinalis) is a popular garden plant. There are alos the popular annual varieties of Lobelia that are so often seen in hanging baskets. It is safe to say that Lobelia erinus (native to South Africa) is one of the most popular and compact lobelia species. Lobelias … Perennial Resource; Proven Winners ... Lobelia will easily adapt to 'wet feet' but can also tolerate well-drained soils. Good annual groundcover, or for rock gardens and as edgings. It is in flower from July to August, and the seeds ripen from August to September. GROWING LOBELIA PLANTS AND FLOWERS. 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