Lobelia erinus
(sold as Blue Splash)

Family: Campanulaceae

Common names: EDGING LOBELIA, TRAILING LOBELIA

Native to: Southern Africa

Plant

Type: perennial

Forms: pendent, prostrate

Max height: 0.75 feet

Max width: 1 foot

Flower

magenta/purple, secondary color present, white/off white

Leaf

green

Horticulture

Attracts wildlife: adult butterfly, specific butterfly species

Exposure: part shade, sun

Landscape use: container

Propagates by: seed

flowers in spring

Soil type: loam

USDA Zone: zone 9 to +20 f

Temp. range: +20 to +30 °F

Water: regular

Of the 436 species of Lobelia, many are cultivated. Lobelia is a member of the Campanulaceae family that flower spring, summer, or fall. They grow in Zones 3-10 to 1-2 feet tall; Lobelia tupa can get to 6 ½ feet in height. They do best with regular watering. Both birds and butterflies come to this plant for nectar.

Lobelia attracts Danaus plexippus, MONARCH, Papilio rutulus, WESTERN TIGER SWALLOWTAIL, and Vanessa cardui, PAINTED LADY.

Lobelia cardinalis attracts Phoebis sennae, CLOUDLESS SULPHUR.

Container plants that attract adult butterflies - perennial

This plant can be grown in a container and will attract and feed adult butterflies. These plant can be found in every height range – from tiny to large – from less than a foot high to over 10 feet tall.

Our database of nectar plants for all US butterflies contains over 10,000 entries. The top five nectar plants -- Cirsium, Lantana, Asclepias, Salvia, and Verbena -- will appeal to 90% of all US butterflies. Pick from these if you want to provide nectar for your local butterflies.

Once you start with these, you can add from another 630 genera in 110 plant families to attract more insects to your garden.

By far the most import butterfly nectar plant family is Asteraceae. If you grow plants in from this family, butterflies will find your garden.