Amethyst Kiss™ Spiderwort

Tradescantia 'Radtrad'

$30²⁵

In Stock

Enter your ZIP code to check shipping availability.

Find your Growing Zone

Plant Size

#1 Container

Product variants

Plant Sentry™

Delivery and Shipping

Understanding Plant Options

Nature Hills offers plants in two main formats:

Container Plants: Grown in pots with soil, sized by container volume and plant age
Bare Root Plants: Dormant plants without soil, sized by height measurements

Container Plant Sizes

Container sizes indicate plant age and growing capacity rather than liquid volume equivalents. Our containers follow industry-standard nursery "trade gallon" specifications, which differ from standard liquid gallon measurements.

Young Plants (6 months to 18 months old)

Container Size	Actual Volume	Metric Equivalent
2" x 2" x 3"	0.18 - 0.21 dry quarts	0.20 - 0.23 dry liters
4" Container	0.31 - 0.87 dry quarts	0.35 - 0.96 dry liters
4.5" Container	0.65 dry quarts	0.72 dry liters
6" Container	1.4 dry quarts	1.59 dry liters
1 Quart	1 dry quart	1.1 dry liters
5.5" Container	1.89 dry quarts	2.08 dry liters

Established Plants (18 months to 2.5 years old)

Container Size	Actual Volume	Metric Equivalent
2 Quart	2 dry quarts	2.2 dry liters
#1 Container	2.26 - 3.73 dry quarts	2.49 - 4.11 dry liters
5" x 5" x 12"	3.5 - 4.3 dry quarts	3.85 - 4.74 dry liters

Mature Plants (2-4 years old)

Container Size	Actual Volume	Metric Equivalent
#2 Container	1.19 - 1.76 dry gallons	5.24 - 7.75 dry liters
#3 Container	2.15 - 2.76 dry gallons	8.14 - 12.16 dry liters

Large Plants (3-5 years old)

Container Size	Actual Volume	Metric Equivalent
#5 Container	2.92 - 4.62 dry gallons	12.86 - 20.35 dry liters
#6 Container	5.25 - 6.01 dry gallons	23.12 - 26.42 dry liters
#7 Container	5.98 - 6.53 dry gallons	26.34 - 28.76 dry liters

Bare Root Plants

Bare root plants are sold by height from the root system to the top of the plant. Plants may exceed minimum height requirements.

Common Sizes:

Trees: 1 foot, 2 feet, 3 feet, 4 feet, 5 feet, 6 feet
Shrubs & Perennials: 1 foot, 18 inches, 2 feet

Important Notes

Container Volume Specifications

Trade Gallon Standard: Our containers follow industry-standard "trade gallon" specifications established by the American National Standards Institute (ANSI Z60.1) for nursery stock
Volume Variations: Actual soil volume may vary due to plant root systems and growing medium settlement
Age Indicators: Container size primarily indicates plant age and maturity rather than liquid volume equivalents

Growing Conditions

Plant size can vary based on variety and growing conditions
Container size helps indicate plant maturity and establishment level
Larger containers generally mean more established root systems and faster landscape establishment

Seasonal Availability

Bare root plants are available seasonally when dormant
Container plants are available throughout the growing season
Specific varieties may have limited availability in certain sizes

Questions?

For questions about specific plant sizes or availability, please contact our plant experts who can help you choose the right size for your landscape needs.

Plant Profile & Growing Essentials

Cold hardy, Low Maintenance, Flowering, Wet Soils, Deer-resistant, Attracts pollinators, and Container Friendly

Specifications

Botanical Name

Tradescantia 'Radtrad'
Height

1-2 ft
Width

1 ft
Growing Zones

3-9
Growth Rate

Moderate
Flower Color
- Blue
- Purple
Leaf Color
- Green
Fall Color

Yellow
Native

Yes
Pollinator Friendly

Yes
Pollinator Required

No
Bloom Period

Late Spring, Early Summer, Late Summer
Does Not Ship To

AK, HI, ID, MT

Planting & Care Instructions

Where to Plant

Sunlight: Aim for 4–6 hours of direct morning sun or all-day dappled sun. In cooler climates (Zones 3–5), full sun is excellent for maximizing blooms, but in hot, southern regions (Zones 7–9), afternoon shade is essential to prevent leaf scorch and premature summer dormancy.
Soil: This plant is adaptable but performs best in soil that is rich, fertile, and, most importantly, consistently moist yet well-drained. If you have heavy clay, amend the area generously with compost and peat moss to improve drainage and prevent the roots from becoming waterlogged.

Watering Requirements

For newly planted stock, keep the soil consistently and reliably moist through the first growing season to ensure robust root establishment. Once mature, Amethyst Kiss™ is moderately drought-tolerant, but to maintain its incredibly long bloom period from early summer to frost, provide consistent moisture. Inconsistent watering, especially during summer heat, will cause the foliage to look ragged, reduce the size of the daily blooms, and may send the plant into early dormancy.

Pruning Tips

Spiderwort blooms on new wood, meaning the flowers appear on the current season's growth. The primary pruning technique is the "Chelsea chop" or mid-season shearing: once the first major flush of blooms slows down in mid-summer, cut the entire plant back by about one-third. This removal of leggy, spent foliage encourages a dense, bushy second flush of growth and ensures a tidy, heavy rebloom that can last until fall.

Fertilizer Needs

Apply a balanced, slow-release granular perennial fertilizer (such as a 10-10-10 or 14-14-14 NPK ratio) in early spring as new growth emerges. A single, moderate feeding is usually sufficient to fuel the entire growing season. What to avoid: Do not apply high-nitrogen liquid fertilizer late in the season, as this encourages soft, new growth that is highly susceptible to damage from an early frost.

Free shipping

On all orders over $199
Plant Sentry™

Compliant guaranteed
Easy returns

Hassle free returns policy
Live Chat

Talk to a real person

Growing Zones 3-9

Find Your Growing Zone!

Lovely Tri-Petaled Beauties Amethyst Kiss Spiderwort!

Unique 3-Petaled Amethyst Blooms
Long Grass-Like Bright-Green Foliage
Forms Large Clumps
Easy Care & Low Maintenance
Very Long Bloom Period!
Full Sun to Full Shade!

Amethyst Kiss Spiderwort (Tradescantia 'Radtrad') is a unique and adaptable native selection that produces large clusters of amethyst blooms! Each with 3 petals in amethyst, with bright yellow stamen highlighting each center!

Clusters of cheery blooms rise above thin foliage of bright green! Forming clumps, these tolerant beauties thrive about anywhere!

Longest blooming of all Spiderwort, Amethyst Kiss starts early summer through falls frost!

How to Use Amethyst Kiss Spiderwort In The Landscape

Clump-forming 'spidery' foliage is perfect as border plants and vibrant additions to Perennial and Cottage gardens!

Tolerating occasional wet soil, that tricky spot by the gutters or a Rain garden are both fitting locations for these moisture-loving perennials!

Fantastic in containers, these unique blooms add whimsy and curiosity plus loads of pollinators!

#ProPlantTips For Care

Growing in USDA zones 3-9, Amethyst Kiss tolerates a wide amount of sunlight, full sun plants in cooler climates, and full shade in hot zones and grow in any amount of sun in between.

Best in organically rich, fertile soil that is consistently moist but well-drained and even tolerant of slightly acidic soils.

Amethyst Kiss Spiderwort is a fantastic long-blooming addition to your garden this year! For a unique and colorful native perennial with superb adaptability, order yours from Nature Hills today!

Under $50	$9.99
$50 - $99.99	$14.99
$100 - $149.99	$16.99
$150 - $198.99	$24.99
$199+	FREE

Amethyst Kiss™ Spiderwort

Tradescantia 'Radtrad'

Plant Sentry™

Delivery and Shipping

Specifications