PENSTEMON grandiflorus (Shell-Leaf Penstemon)
Penstemon Grandiflorus commonly known as ‘Shell-Leaf Penstemon’. Indigenous to Missouri, this species is only known to occur in grassy, open, loess hill areas in the far northwestern corner of the state. Its stunning large flowers bloom for just a few weeks in May or June. This plant is endangered in some states and is typically rare to see in the wild. A decoction of the roots has been used in the treatment of chest pains and stomach aches.
| Number of Seeds | Max Coverage Area (Square Ft.) | |
|---|---|---|
| 0.5OZ | 16,250 | 500 |
| 1OZ | 32,500 | 1,000 |
| 1/4LB | 130,000 | 4,000 |
| 1/2LB | 260,000 | 8,000 |
| 1LB | 520,000 | 16,000 |
| 5LB | 2,600,000 | 80,000 |
Scientific Name: Penstemon Grandiflorus
Common Name: Shall-Leaf Penstemon
Plant Type: Perennial
Family: Plantaginaceae
Native Range: North Dakota to Wyoming, Texas and Illinois
Height: 24-36"
Spread: 12-18"
Habitat: Dry Prairies, Edges of sandy woods
Zone: 3-9
Exposure: Full sun
Blooming Season: May to June
Attracts: Birds, Hummingbirds
Resistant: Deer
Characteristics: Showy
Flower Shape: Trumpet
Flower Color: Lavender blue
Water Requirement: Dry to medium
Soil Type: Well-Drained
Soil pH: Acid, Alkaline, Neutral
Advantage: Low maintenance
Uses: Decoction of roots for chest pain and stomach aches, Decoction of leaves for fever