Purple Smoke False Indigo

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Lovely soft purple, the Purple Smoke False Indigo (Baptisia x 'Purple Smoke') is a seedling of Baptisia australis and Baptisia alba which resulted in a spectacular plant with charcoal-green stems and dozens of giant spires of dusty purple flower heads! Purple Smoke is a vigorous grower that becomes more impressive every year as it matures!

A fantastic pollinator plant, the bees and butterflies will love these mid-sized perennials as they call a host of beneficial insects each spring. You'll enjoy these blooms too because there are plenty to go around for you to create lovely floral bouquets!

Purple Smoke is a good, vigorous grower, extremely long-lived, and destined to become a favorite in the garden. Remarkably cold-hardy, this Baptisia thrives throughout USDA hardiness zones 4 to 9! Growing into a vase-shaped 4 - 5 foot tall and 3 - 4 wide fountain of blue-green foliage!

Planting and Application:

A hardy hybrid of the native American prairie plant, Purple Smoke Indigo has all the same resilient qualities! Each spring, these perennials quickly grow to fill bare spots in your mixed borders and sunny landscapes each year! Baptisia looks attractive by itself, against walls and fences, in mass plantings, in large groupings, and in long rows as backdrops!

The soft purple spikes of flowers make False Indigo a striking specimen amid other spring plantings, bridging the gap between early spring and summer blooms! Members of the Pea family, Baptisia roots help fix nitrogen in the soil, making soil health better! This makes them great to use in poor soil and around your Victory Garden or orchard, bringing in the bees to help pollinate your fruiting shrubs and trees!

Cottage and Meadow gardens gain a tall and broad accent and that unusual blue hue brings sublime coloration to any landscape! Plant False Indigo around your defensible zone for a pretty firewise landscaping plant! Thriving in tough conditions and the hell-strip, Baptisia are hardy and thrive in Rock Gardens, poor soil, and Xeric conditions once they're established.

Plant in out-of-the-way locations, along hot sunny foundations, and in native plant gardens, without worry the deer and rabbits will eat them up. Don't have a big yard? This tidy perennial works fantastic in large containers as a 'thriller' and 'filler' or as a specimen in decorative planters! Any sunny patio or seating area will be the perfect places to display these purple fountains!

  • Gorgeous Smokey Purple Pea-Like Long Floral Spikes
  • Upright Vase-Shaped Fine-Textured Blue-Green Foliage
  • Beneficial Insects & Pollinators Adore It!
  • Lovely Cut Flowers & Fall Seed Pods
  • Great Native For Soil Improvement, Native Restorations & Firewise Landscapes
  • Specimens, Backdrops, Accents & Tricky Sites

#ProPlantTips for Care:

Full sun is best for this Perennial's most successful flowering and performance. It grows well in average to dry soil but adapts to most conditions. Baptisia has a very deep tap root, allowing it to survive long dry periods and making it a challenge to move once it is established. Provide consistent watering throughout its first year in the ground, but once established, these are xeric plants! All plants appreciate a 3-4 inch layer of mulch over the root system whether they are in the ground or planters.

Deadhead after the flowers fade to clean up the mounds. In early spring, simply prune Baptisia to the ground. Transplant in the early spring if you must, but the deep taproots can sometimes resist being divided.

  • Loves Sun & Heat!
  • High Performance, Salt & Drought Tolerant
  • Versatile & Adaptable to Most Well-Drained Soils
  • Low Maintenance & Low Moisture Once Established
  • Deadhead After Bloom & Prune Early Spring
  • Rabbits & Deer & Drought Resistant

Hardy and resilient, the Purple Smoke False Indigo is as tough and beautiful as its native cousins! Order this and many more incredible perennials to add to your landscape today from Nature Hills Nursery!

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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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
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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


Purple Smoke False Indigo Is Suited to Grow in Zones 4-9
Growing Zones 4-9
More Information
Brand Nature Hills' Choice
Botanical Name Baptisia x 'Purple Smoke'
Type Perennial
Mature Height 4 - 5 feet
Mature Spread 3 - 4 feet
Sun Exposure Full Sun
Soil Well-Drained
Moisture Moderate to Low Once Established
Growth Rate Fast
Flower Color Soft Smokey Purple
Foliage Green
Pollinator Friendly Yes
Pruning Time Early Spring