NEW MILLENNIUM™ Purple Passion Delphinium
Delphinium x 'Purple Passion'
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NEW MILLENNIUM™ Purple Passion Delphinium - 5 Inch Container is backordered and will ship as soon as it is back in stock.
Plant Sentry™
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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Delivery and Shipping
Delivery and Shipping
Shipping
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.
Standard 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
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 |
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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 Highlights
NEW MILLENNIUM™ Purple Passion Delphinium highlights at a glance!
Specifications
Specifications
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Brand
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Botanical Name
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Growing Zones
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Mature Height
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Mature Spread
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Sun ExposureFull Sun
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Moisture
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Soil
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Growth RateMedium
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Flower Color
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Pollinator Friendly
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Pruning Time
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Bloom PeriodSummer, Fall

Growing Zones 3-7
Want a beacon in your garden that draws everything on two legs or with wings to come check out your garden beds and borders? Well, then you need the NEW MILLENNIUM™ Purple Passion Delphinium (Delphinium x 'Purple Passion')! This is one flower you will spot from quite a distance! Purple Passion Delphinium sports intense, deep purple blossoms with a purple and white striped center - known as a 'bee'.
The densely packed flower spikes are produced on very strong stems that do not require staking. Blooming from the bottom up, each double floret fills the entire wand and lasts and lasts! Forming atop a large mound of deeply incised, green leaves make this plant attractive even when it's not in bloom!
Hummingbirds and butterflies adore the blossoms. Individual plants make lovely specimens in the garden and groupings are spectacular. Deer and rabbits will stay away. NEW MILLENNIUM™ Delphiniums have a neat compact habit and are renowned for the excellent form, strong stems, and vigorous growth habit of their hybrids. Growing to an impressive 4-5 feet when in bloom! The dark green mound of foliage spreads to 18-24 inches wide and thrives throughout the chilly USDA growing zones 3 through balmy zone 7 without having any pest issues! This series is also noted for its tolerance to heat and humidity.
Planting and Application:
Purple Passion Delphinium is sure to amaze you anywhere you plant it! Like tall royal purple punctuation, these wands of dramatic color create a bold impact as a back-of-the-garden bed or border! This is a welcome addition to Cottage borders and cutting gardens, especially when you want to go big - both in the landscape and in the vase! But be ready with a few tall vases to support these 3-5 foot tall flowers! For the best visual impact, plant them in groups as extreme exclamation points throughout the landscape!
Anchor a garden bed or border, or add something dramatic behind the mailbox to turn heads and slow traffic as it passes your house! Any garden becomes a butterfly garden with one or more of these vertical interest perennials! These plants add height to smaller perennial gardens and look thrilling in Rose gardens!
- Intense Deep Purple Densely Packed Florets & White Centers
- 2-Foot Wide Mounds of Deep Green Lobed Leaves
- Attracts Hummingbirds and Butterflies
- Strong Stems Do Not Need Stakes
- Anchors, Beds and Borders, Specimen & Accent Perennials
#ProPlantTips for Care:
Purple Passion Delphiniums grow best in rich, well-drained soil with a basic pH. If your soil is naturally acidic, adding lime will help to provide these conditions. Delphinium appreciates a 3-4 inch thick layer of mulch over the roots. Provide regular moisture all summer for best results and to support the huge blooms.
The strong stems rarely need to be staked when planted in a protected area, so they continue to stand as tall punctuation throughout the garden! But if you do grow them in windy locations, a firm stake will help support their stems. Deadhead early enough and you'll enjoy a rebloom until fall, then as the foliage turns yellow, prune back the mound close to the ground and water it in well one last time before the ground freezes.
They are also heavy feeders. The addition of compost or manure to the soil, as well as a granular fertilizer, will result in healthier, stronger plants. It is recommended you wear gloves when handling these plants since some can develop skin sensitivity. Always monitor young pets and young children around Delphinium.
- Full Sun & Afternoon Shade
- Well-Drained Enriched Soil
- Appreciates Mulch & Regular Moisture Access
- Low-Maintenance & Deer Resistant
- Deadhead As Blooms Fade & Prune Late Autumn
Punch up your landscape with the thrilling NEW MILLENNIUM™ Purple Passion Delphinium! Hurry and order this attention seeker of a perennial today from NatureHills.com!