Species lobelia
Blue flowers with lime-white center, lime buds, green leaves and stems.

lobelia

Lobelia erinus

Lobelia erinus, commonly known as bedding lobelia and edging lobelia, is a fast-growing annual flower with small, vibrant blooms. Its low-growing habit and long-blooming season make it an ideal choice for hanging baskets, containers, and flowerbeds. Its flowers come in shades of purple, pink, blue, and white. Lobelia thrives in full sun and warm temperatures. With plenty of water and consistent fertilizing, Lobelia erinus provides a reliable display from late spring through the autumn months. Its delightful, delicate nature makes a charming addition to any garden.

Cycle:

Herbaceous Perennial

Watering:

Frequent

Propagation:

Seed Propagation

Hardiness Zone:

10 - 11

Flowers:

Blue to violet with yellow to white throat Flowers

Sun:

full sun,part shade

Soil:

Well-drained

Fruits:

blue,purple Fruits In Autumn Ready In Fall

Leaf:

Yes

Leaf Color:

green,purple

Growth Rate:

High

Maintenance:

Moderate

Poisonous To Pets:

Yes

Salt Tolerant:

Yes

Indoors:

Yes

Care Level:

Medium

watering

Lobelias should be watered every 2 to 3 days, or when the top inch of soil has dried out. When watering, water thoroughly, so that water runs out of the bottom of the pot. Allow the soil to dry out slightly before watering again. Make sure not to overwater as this can cause root rot.

sunlight

Lobelia erinus, commonly known as edging lobelia, requires full sunlight for at least 4 hours per day to flourish. The best time to provide this sunlight is between 10am and 4pm, when the sun is at its highest point and the plant can receive a direct source of sunlight. Because lobelia erinus typically grows in warmer climates, it would also benefit from some afternoon shade for protection from the harsh midday sun.

pruning

Pruning of lobelia (Lobelia erinus) should be done after flowering to promote bushy, compact growth. Depending on the variety, it may need to be trimmed back more than once each season. For vigorous-growing varieties, pinch or trim back just above the first set of leaves in spring and again to encourage fresh growth in midsummer. For more moderate-growing varieties, trimming can be done just once at the end of the growing season. All but the most vigorous-growing varieties should not be cut back too severely, as this can limit bud formation and reduce flowering the following year.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Lobelia erinus typically starts flowering in late spring, usually in May or June.

Starts Flowering

Lobelia erinus typically starts flowering in late spring, usually in May or June.

Harvest Fruit

The harvesting season for Lobelia erinus typically begins in June and ends in August.

Hardiness Map