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Penstemon Barbatus Cambridge Mixture Seeds for Planting

Penstemon Barbatus Cambridge Mixture Seeds for Planting

$16.69 USD
$16.69 USD
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How to Sow and Plant

Stratify seeds in a moist paper towel in the fridge for 4–6 weeks. Scatter seeds lightly on soil and press gently; do not cover, as seeds require light to germinate.

How to Grow

Germination occurs in 14–28 days at 60–70°F. Thin seedlings to 12–18 inches apart. Prefers full sun but tolerates partial shade. Use well-drained sandy or loamy soil.

Tips

Provide regular watering without waterlogging. Deadhead spent blooms to prolong flowering.

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About
Product Information
Features
life-cycle

LIFE CYCLE

Perennial

plant-characteristics

PLANT CHARACTERISTICS

Tubular

growth-habit

GROWTH HABIT

Upright

bloom-season

BLOOM SEASON

Summer to Early Fall

flavour-profile

FLAVOUR PROFILE

Ornamental

suitable-for

SUITABLE FOR

Outdoor

About
Penstemon Barbatus Cambridge Mixture Seeds for Planting
seed-type

SEED TYPE

Non-hybrid

plant-type

PLANT TYPE

Perennial Flower

Penstemon Barbatus Cambridge Mixture produces long-lasting, tubular blooms in a variety of colors, perfect for enhancing garden borders, containers, and pollinator habitats.

Planting information
planting-season

PLANTING SEASON

Spring

fruit-size

FRUIT SIZE

N/A

plant-height

PLANT HEIGHT

18–36 inches

light-requirement

LIGHT REQUIREMENT

Full sun to partial shade

water-needs

WATER NEEDS

Moderate

hardiness-zones

HARDINESS ZONES

USDA Zones 4–9

container-garden

CONTAINER GARDEN

Yes

plant-spacing

PLANT SPACING

12–18 inches

planting-depth

PLANTING DEPTH

Surface sow

growing-conditions

GROWING CONDITIONS

Well-drained sandy or loamy soil

Coverage
Seed Count
Recommended Coverage
SEED COUNT
100
GTIN
036000171099

Frequently Asked Questions

Can Penstemon Barbatus 'Cambridge Mixture' attract hummingbirds and bees?

Yes. The tubular flowers are attractive to hummingbirds, bees, and other pollinators, making them a valuable addition to wildlife-friendly gardens.

Does this Penstemon produce flowers on tall upright spikes?

Yes. It forms elegant upright flower spikes that add vertical color and structure to borders and mixed perennial plantings.

Can Penstemon Barbatus 'Cambridge Mixture' be planted in gravel gardens?

Yes. It performs well in sunny, well-drained gravel gardens, rockeries, and drought-tolerant landscape designs.

Will removing spent flower spikes encourage more blooms?

Yes. Deadheading faded flower spikes can promote additional flowering and help keep the plant looking tidy throughout the season.

Does this variety tolerate dry conditions after establishment?

Yes. Once established, it can tolerate short periods of dry weather when grown in well-drained soil.

How is Penstemon Barbatus different from common garden Penstemons?

Penstemon barbatus is recognized for its slender, upright flower spikes and tubular blooms, giving it a more graceful, vertical appearance than many broader-flowered Penstemon hybrids.