Karl's Cousin® Big Bluestem

Availability: Out of stock

Architectural Space-Saver Karls Cousin® Big Bluestem!

  • Tall, Upright Columnar Growth
  • Bold Handsome Look
  • Verticle Structure & Texture
  • Blue-Green Foliage Turns Purple
  • Easy Care & Low Maintenance
  • Amazing Fall Color
  • Long-Lasting Showy Blooms
  • Drought Tolerant - Very Hardy Native Variety
  • Deer Resistant
  • Erosion Control
  • Four Season Interest Warm-Season Grass

Archive upright and narrow, columnar structure for your garden with Karl's Cousin® Big Bluestem (Andropogon gerardii Karl's Cousin® 'Nondhwr')!

A space-saving ornamental grass that fits anywhere, Karl's Cousin® will command verticle lines and an overall formal and very attractive shape.

Emerging a cool blue-green and turning into more purple-tinged blades, Karl's Cousin® is known for showy fall plumes and glossy, deeply saturated leaves. The stems, leaves, and flowers take on shades of purplish blue throughout the growing season.

With no serious pest or disease problems, this is an easy-breezy addition to any size or style landscape! Hardy throughout USDA growing zones 4-8, this no-flop warm-season ornamental perennial grass won't leave you feeling down all growing season long and beyond!

How to Use Karl's Cousin® Big Bluestem In The Landscape

These tall, narrow plants draw the eye as exclamation points and are ideal for adding the coveted purple-blue color and vertical definition to your landscape. Talk about an easy designer's touch!

A single plant in a large ornamental container as an upright focal point will easily elevate your garden. Because this grass is very controlled and low maintenance, it is quite often used in commercial landscapes where you most often find it planted in mass or in narrow spaces as a fill plant.

Add a few in mixed borders and country gardens for an easy focal point throughout the landscape, making any design instantly feels fresh and modern.

Planted en masse in sunny drifts will provide waves of color throughout the growing season, plus winter interest too! Excellent for erosion control, slopes and prairie plantings!

#ProPlantTips For Care

Only taking up a foot of garden space, Karl's Cousin®'s foliage gets about 3-4 feet tall, then add the flowers and the plants can get to 6 or 7 feet in height! Standing tall like a soldier in the landscape! Preferring the full sun for the best coloration and sturdy growth.

Any well-drained soil will make warm-season Karl's Cousin® feel right at home. Needing average to lower moisture once established, This grass has extreme hardiness in heat and cold, Bluestem is a supremely easy-to-grow specimen. Drought tolerant once established it's nearly impossible to kill once acclimated.

Best pruned just before spring, cut back to a few inches above the soil to prepare for the spring growth and clean out debris from the center to prevent rot.

With its perpetual motion, formal plumes, and lively growth, Karl's Cousin® is sure to keep you entertained throughout the seasons. You'll be glad you gave Nature Hills a call as soon as these are back in stock!

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.

Click Here to learn more

Plant Sentry


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
5 Now
6 Now
7 Now
8 Now
9 Now
10 Now
11 Now

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


Karl's Cousin® Big Bluestem Is Suited to Grow in Zones 4-8
Growing Zones 4-8
More Information
Brand Nature Hills' Choice
Botanical Name Andropogon gerardii 'Nondhwr'
Type Perennial
Mature Height 4 - 7 feet
Mature Spread 18 - 24 inches
Sun Exposure Full Sun
Soil Well Drained
Moisture Moderate
Growth Rate Medium
Foliage Color Blue-Green
Fall Color Red, Purple
Pollinator Friendly No
Pruning Time Early Spring