Species

4 other cultivars

perennial

Midnight Penstemon

Penstemon x gloxinioides 'Midnight'

The Story

Plant Bio

Perennial plant with tubular purple flowers attractive to hummingbirds.

Known for its deep, midnight-purple, bell-shaped flowers on tall spikes.

Uses & Benefits:

Penstemon x gloxinioides Midnight offers striking deep purple flowers that attract pollinators, making it a stunning addition to borders and rock gardens.

Its drought tolerance reduces water needs once established, ideal for water-wise gardening.

Provides nectar for hummingbirds and bees, supporting local pollinator populations.

Essentials

At a Glance

Plant Type

Perennial

Height

30 inches

Width

18 inches

Light

Full Sun, Partial Sun

Zones

6, 7, 8, 9, 10

Water

Low to moderate

Humidity

Average

Lifespan

Short-lived perennial

Native To

North America (hybrid)

Toxicity

Non-toxic

Planting

How to Grow

Tuck seeds into well-draining soil in early spring.
Mist cuttings regularly to maintain humidity and promote rooting.
Water deeply once a week during dry spells.
Fertilize monthly with a balanced, liquid fertilizer.
Prune after flowering to encourage bushy growth.
Divide clumps every 2-3 years in early spring to maintain vigor.

Pro Tip

Use well-draining soil and avoid overwatering to prevent root rot.

Keep It Thriving

Care Guide

Do

Water consistently during dry periods 🌱
Prune back after flowering to shape the plant
Apply balanced fertilizer monthly

Don't

Overwater to avoid root rot ❌
Allow soil to stay waterlogged
Neglect pruning after flowering

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Mulch
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Vivid perennial border with deep purple flowersElegant rock garden accentWildflower meadow addition

Companion Plants

Salvia EchinaceaLavender Coreopsis Gaillardia

Multiply

Propagation Methods

Good to Know

Common Questions

Midnight Penstemon questions

What zones can Midnight Penstemon grow in?

Midnight Penstemon is hardy in USDA Zones 6–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Midnight Penstemon deer resistant?

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

When does Midnight Penstemon bloom?

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

Does Midnight Penstemon need full sun?

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

Is Midnight Penstemon drought tolerant?

Yes — once established (usually after the first full season), Midnight Penstemon handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.