Garden hybrid

Lobelia x hybridaLobelia

4 other cultivars

perennial

Vedrariensis Lobelia

Lobelia x hybrida 'Vedrariensis'

The Story

Plant Bio

A hybrid perennial lobelia, resulting from crosses of North American native species like L. cardinalis and L. siphilitica. It forms clumps of upright stems with lance-shaped leaves, preferring consistently moist to wet soils.

Distinguished by its tall, erect spikes of intense, velvety, violet-purple flowers that bloom from mid-summer into fall. The foliage and stems often carry a bronze or purple tinge, adding to its ornamental appeal.

Uses & Benefits:

Lobelia Vedrariensis adds vibrant blue color to garden borders and containers, attracting pollinators.

Provides ground cover in shaded areas, reducing soil erosion.

Supports bees and hummingbirds, enhancing local biodiversity.

SpeciesLobelia x hybridaLobelia

Essentials

At a Glance

Plant Type

Perennial

Height

30"

Width

15"

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Consistent moisture

Humidity

Moderate

Lifespan

Perennial

Native To

North America

Toxicity

Yes

Bloom period

Mid-summer to Early Fall – Late summer

In flower about 2 months of the year

Planting

How to Grow

Tuck seeds into well-draining soil in early spring.
Mist cuttings regularly to maintain humidity and encourage rooting.
Water consistently to keep soil moist but not waterlogged.
Fertilize monthly with a balanced liquid fertilizer during the growing season.
Pinch back to promote bushier growth and more flowers.
Transplant seedlings when they are strong enough, typically after the last frost.

Pro Tip

Use rich, moist soil and provide partial shade for best flowering results.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil evenly moist 🌱
Provide partial shade in hot climates 🌱
Pinch back to encourage fuller growth 🌱
Fertilize monthly during the growing season 🌱

Don't

Avoid overwatering to prevent root rot ❌
Don't expose to full, harsh sun in hot climates ❌
Do not neglect deadheading spent flowers ❌
Avoid dry soil conditions ❌

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Divide
Fertilize
Mulch
Plant
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Colorful border with vibrant flowersGroundcover in shaded garden areasContainer plant for patios

Companion Plants

Marigolds Petunias Ferns Begonias

Multiply

Propagation Methods

Good to Know

Common Questions

Vedrariensis Lobelia questions

What zones can Vedrariensis Lobelia grow in?

Vedrariensis Lobelia is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Vedrariensis Lobelia deer resistant?

Yes — Vedrariensis Lobelia is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Vedrariensis Lobelia bloom?

Vedrariensis Lobelia typically blooms in mid-summer to early fall through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Vedrariensis Lobelia need full sun?

Vedrariensis Lobelia does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.