Dark Towers Penstemon

Availability: Out of stock

Year-round color, we all need a little mystery in our lives! The Dark Towers Penstemon (Penstemon 'Dark Towers') brings an air of chic mystery to your garden even before it blooms! Dark Towers arouses interest first with its deep red foliage. Then, to draw you in, it bursts open striking two-toned, tubular flowers that bloom on tall stems in early and mid-summer.

Penstemon is a hardy native that blooms reliably when planted in a place it loves. Commonly called 'beard-tongue', the sweet blossoms are held on dainty spikes that start out light pink, with a darker pink tone at their base. The color combo plays beautifully off of the ox-blood-colored leaves. Evergreen in warmer climates and mild winters, this is a plant that will absolutely take your breath away!

Did we mention that Hummingbirds flock to Penstemon like ducks to water? Your garden will be alive with birds and butterflies! The native form of this plant is a larval Host Plant for many types of butterflies and moths. This variety is a newer cultivar that was chosen for its hardiness throughout USDA growing zones 3 through 9 and has improved color-fastness in the heat and humidity.

Planting and Application:

A little taller than others in this class, Dark Towers' deep colors blend well with other natives like Black-eyed Susan and Muhly Grass! Creating upright form and texture to Perennial mixed-garden displays, any wildflower, English Cottage border, include them in a Wildflower garden, updated Prairie, or naturalized-looking modern Meadow planting! Add to hummingbird and pollinator gardens, and in cut flower beds to enjoy the flutter of wings all summer, as well as vases full of these vivid blooms!

Plant around a sunny porch or patio, or as light screening around seating areas. Vibrant and low-maintenance when used in xeriscaping, en mass, and along sunny pathways and hell-strip locations are no problem. But these are hardy, compact, and drought tolerant once established, making them perfect for Fire-wise landscaping and Rock gardening.

  • Light Pink to Dark Pink Blooms
  • Dramatic Foliage Color!
  • Wildlife Interest
  • Upright Mounding Herbaceous Perennial
  • Low Care & Hardy Native Selections
  • Specimen, Pollinator & Prairie Beds, Cut Flowers & Borders

#ProPlantTips for Care:

Hardy and beautiful, Dark Towers is sure to please. Plant Penstemon in full sun and in well-drained soil conditions, preferring average soil types on the lean side. Provide regular moisture access throughout their first year, but once these herbaceous perennials are established, they are blissfully drought-tolerant and xeric! Provide a 3-4 inch thick layer of Mulch around their crowns, these are very cold tolerant, you can leave these seed heads as winter interest and attract songbirds, or deadhead them to tidy up the mounds in fall. Trim all foliage down late fall after frost, and divide every few years to maintain the vigor of the crown.

  • Strongest Blooms in Full Sun
  • Average to Low Moisture Needs
  • Any Very Well-Drained Soil
  • Xeric & Drought-Tolerant Once Established
  • Deer & Rabbit-Resistant
  • Heat & Humidity Tolerant

For incredible color, even when not in bloom, you can't beat Dark Towers as a great addition to your garden this year. Order your very own Dark Towers Penstemon today from Nature Hills Nursery before it's too late!

Buying Options for Plants

Nature Hills sells a large variety of plants with several options available. Plants are offered in both potted containers and as dormant bare root without soil. Here is a helpful resource to understand your options as you create a beautiful landscape with help from Nature Hills.

Ever wonder what a larger plant will mean for your landscape? Container Sizes are really all about the age of the plant!

Seasonally, Nature Hills offers hand selected, high quality bare root trees, shrubs and perennials. Bare root plants are sold by height from the top of the root system to the top of the plant. Plants may be taller than the height minimums.

  • Popular sizes of select trees are 1 foot, 2 feet, 3 feet, etc.
  • Popular sizes of select bare root plants is 1 foot, 18 inches, etc.

Nature Hills Container Size by Volume

Keep in mind, specific varieties and different growing conditions can affect the rate at which plants grow. Variations in size may occur.

Young Plants to 18 Months
Size Volume
2"x2"x3" Ranges from .18 to .21 dry quarts / .198 to .23 dry liters in volume
4.5" Container Equal to .65 dry quart / .72 dry liter in volume
Sprinter Pot Equal to .63 dry quart / .69 dry liter in volume
4" Container Ranges from .31 to .87 / .35 to .96 dry liter in volume
6" Container Equal to 1.4 dry quarts / 1.59 dry liters in volume
1 Quart Equal to 1 dry quart / 1.1 dry liter in volume
5.5" Container Equal to 1.89 of a dry quart / 2.08 dry liters in volume
4"x4"x5" Ranges from .8 to 1.1 dry quarts / .88 to 1.2 dry liters in volume
4"x4"x6" Ranges from 1.0 to 1.3 dry quarts / 1.1 to 1.41 dry liters in volume
4"x4"x9" Ranges from 1.1 to 2.1 dry quarts / 1.2 to 2.3 dry liters in volume
4"x4"x10" Ranges from 1.7 to 2.3 dry quart / 1.87 to 2.53 dry liters in volume
Plants 18 Months - 2.5 Years Old
Size Volume
2 Quart Equal to 2 dry quarts / 2.2 dry liters in volume
#1 Container Ranges from 2.26 to 3.73 dry quarts / 2.49 to 4.11 dry liters in volume
5"x5"x12" Equal to 3.5 to 4.3 dry quarts / 3.85 to 4.74 dry liters in volume
Plants 2 - 4 Years Old
Size Volume
#2 Container Ranges from 1.19 to 1.76 dry gallons / 5.24 to 7.75 dry liters in volume
#3 Container Ranges from 2.32 to 2.76 dry gallons / 10.22 to 12.16 dry liters in volume
Plants 3 - 5 Years Old
Size Volume
#5 Container Ranges from 2.92 to 4.62 dry gallons / 12.86 to 20.35 dry liters in volume
#6 Container Ranges from 5.25 to 6.01 dry gallons / 23.12 to 26.42 dry liters in volume
#7 Container Ranges from 5.98 to 6.08 dry gallons / 26.34 to 26.78 dry liters in volume

About Plant Sentry™

Plant Sentry is designed to protect both consumers and the nursery trade from invasive plant pests and diseases. Sites that display the Plant Sentry protection badge are protected from consumers buying and nurseries shipping material carrying invasive pests and diseases.

This proprietary eCommerce software prevents the shipment of a restricted plant to each state. The Plant Sentry system includes a shipment certification program. The Plant Sentry Compliance Officer works closely with NatureHills.com and each nursery or fulfillment center to ensure only compliant plants are sold to customers.

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To obtain a more accurate shipment time-frame, simply enter your zip code in the “Find Your Growing Zone” box to the right. Our plants are grown all over the country and lead time on items may be different because of this. Once your order is placed, you will also receive the specific shipment time-frame information as part of your order confirmation. Once an item ships, you will receive shipment notification and tracking numbers, so you can follow along while your plant travels to your doorstep. We use FedEx, UPS, or USPS at our discretion.

Due to winter weather we have put a hold on shipping to the areas shown below in grey. You can still order now and we will ship the plant to you during an appropriate time for your zone.

*If you have found your zone already, it will be highlighted in the table below.
Color Zone Times
3 Spring 2019
4 Now
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Shipping Rates

At Nature Hills we handle, package and ship the products you order with the utmost care to ensure healthy delivery. Shipping and handling charges are calculated based on the tables below. Please note that some items include an additional handling surcharge, these will be noted on the item's product page.

From To S&H
0 - 19.99 24.99
20 - 49.99 29.99
50 - 69.99 34.99
70 - 99.99 39.99
100 - 129.99 44.99
130 - 149.99 48.99
150 - 150+ Approx 28%

Click here to see our full rates


Dark Towers Penstemon Is Suited to Grow in Zones 3-8
Growing Zones 3-8
More Information
Brand Plants That Work
Botanical Name Penstemon 'Dark Towers'
Type Perennial
Mature Height 24 - 30 inches
Mature Spread 18 - 24 inches
Sun Exposure Full Sun
Soil Well Drained
Moisture Low Once Established
Growth Rate Medium
Flower Color Pink
Foliage Color Red
Pollinator Friendly Yes
Pruning Time Late Autumn
Fragrant No