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Hardiness Zone: 3-8
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Mature Height: 34-42 Inches
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Mature Spread: 38-42 Inches
Buy Onyx and Pearls Beardtongue online. Named after two polar opposite colors of gemstones, onyx is in reference to its dark foliage and pearls refers to its soft lavender flowers with white interiors. From a distance, the flowers look white. Compared to ‘Blackbeard’, this is a taller, fuller plant with lighter colored flowers. Like all of our Penstemon, this one takes the heat and humidity in stride but is also very cold hardy. It continues to provide terrific color in the landscape all season long.
Family: Plantaginaceae
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Common Name: Beardtongue
FREE with every plant purchased:
- The Sooner Guarantee: For details, click here!
- A pre-applied, pre-measured amount of time release fertilizer that keeps your plant well nourished for up to one year.
- Pre-hydrated Hydro-Gels are included in the top of each container to use when planting as they help retain soil moisture, and plants will establish more quickly with less transplant shock. Plants will also survive drought-like conditions and accidental missed waterings better.
- Planting and Care Instruction brochure.
- Catalogs of new and exciting plant brands, such as Garden Debut® and Proven Winners®.
We use and recommend www.dripdepot.com for our irrigation needs, from simple to install micro and drip systems, to commercial grade irrigation parts and supplies.
ONYX AND PEARLS BEARDTONGUE Plant Characteristics
Cultural Information*
| • | Leaf Scorch – High Resistance |
| • | Leaf Spot – Moderate Resistance |
| • | Powdery Mildew – Low Resistance |
| • | Root Rot – Low Resistance |
Flower Color*
| • | Light Pink |
Flower Type*
| • | Single Blooming |
Fruit Type*
| • | Non-Edible Fruit |
Growth Habit*
| • | Upright Growing |
Growth Rate*
| • | Fast |
Leaf Color Fall*
| • | Burgundy/Crimson/Maroon |
| • | Purple/Brilliant Purple |
Leaf Color Spring*
| • | Burgundy/Crimson |
| • | Purple |
Leaf Color Summer*
| • | Burgundy/Crimson |
| • | Purple |
Leaf Color Winter*
| • | Dark Green |
| • | Purple/Dark Purple |
Leaf Type*
| • | Semi-Evergreen |
Nature Assets*
| • | Attracts Bees |
| • | Attracts Butterflies |
| • | Attracts Hummingbirds |
| • | Deer Resistant |
Plant Type*
| • | Perennial |
Preferred Planting Season*
| • | Spring Planting |
| • | Summer Planting |
Preferred Soil Conditions*
| • | Average |
| • | Drought Tolerant |
| • | Low Water Use |
| • | Prefers Dry Soils |
| • | Tolerates High pH (Alkaline Soils) |
| • | Well-Drained |
Propagation Methods*
| • | Cuttings or Divisions |
Season of Interest*
| • | Early Spring |
| • | Fall |
| • | Late Spring/Early Summer |
| • | Late Summer/Early Autumn |
| • | Spring |
| • | Spring Flowering |
| • | Summer |
| • | Summer Flowering |
| • | Winter |
| • | Year-Round |
Sun Exposure*
| • | Prefers Full Sun in Northern States |
| • | Prefers Full Sun in Southern States |
Uses*
| • | Accent Plant |
| • | Border Plant |
| • | Mass Planting |
| • | Rain Garden |
| • | Rock Gardens |
| • | Under Power Lines |
| • | Understory Planting |
| • | Wildlife Habitat |
| • | Flowering |
Exposure (Short)
| • | Full Sun |











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