Photo by Melody

PlantFiles: Lobelia
Lobelia excelsa

Family: Campanulaceae (kam-pan-yew-LAY-see-ee) (Info)
Genus: Lobelia (low-BEE-lee-a) (Info)
Species: excelsa (ek-SEL-suh) (Info)

One vendor has this plant for sale.

3 members have or want this plant for trade.


4-6 ft. (1.2-1.8 m)
6-8 ft. (1.8-2.4 m)

6-8 ft. (1.8-2.4 m)

USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:
Full Sun
Sun to Partial Shade

All parts of plant are poisonous if ingested

Bloom Color:

Bloom Time:
Mid Spring
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall


Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:

Propagation Methods:
From herbaceous stem cuttings
From seed; sow indoors before last frost
From seed; direct sow after last frost

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds

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There are a total of 13 photos.
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2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive Ursula On Jan 7, 2007, Ursula from Santiago
Chile (Zone 9b) wrote:

This Chilean native species requires full sun exposure and very little watering, which makes it adequate for xeriscaping.

Propagation from seed: regular spring sowing using a mix of 1/3 sharp river sand, 1/3 regular garden soil and 1/3 compost. Sow on top of this mix and gently press the seeds against the compost without covering them. Keep the sowing pan barely moist and pick once the seedlings have 2 true leaves. Plants grown from seeds mature and bloom on the second year.

Being Lobelia excelsa a very tall plant, it can be used to disguise a shed or a fence.

Not appropriate for containers.

Positive hanna1 On Jul 3, 2005, hanna1 from Castro Valley, CA (Zone 9a) wrote:

It is a huge showy rare perennial from Chile. 6' high and about as wide. Mine is already way over that, it is multibranched, and just started putting out new branches from the old! It has been blooming since early Spring, flowers in stages, when batch start to fade, above it comes another batch, Nice red and orange color, really easy to grow for me. It prefers rich soil, and good drainage.


This plant has been said to grow in the following regions:

Castro Valley, California
Mckinleyville, California
Richmond, California

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