Black Jack Dahlia
Dahlia 'Black Jack'
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Black Jack Dahlia - 7 Pack Bulbs 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 |
|---|---|---|
| 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
Black Jack Dahlia 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 RateFast
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Pruning Time
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Bloom PeriodSummer, Fall
Growing Zones 9-11
Dramatic and opulent, the pointed petals and double blooms of the Black Jack Dahlia (Dahlia 'Black Jack') look perfect for a gothic romance novel-style porch, patio, or garden! The ombre effect of the dark burgundy red petals darkens to a near-black crimson center. Each big bloom is packed with petals that have a lovely opalescent sheen!
The slender dark crimson stems pump out the blooms all summer through frost and call pollinators and hummingbirds galore! These blooms are huge and are dramatically backed by upright mounds of dark green toothy and lobed foliage. Low maintenance, easy-to-care-for, Dahlia tubers can be forced as indoor houseplants and greenhouse blooms!
Black Jack are perennial tubers throughout USDA growing zones 9 through 11, but great houseplants and seasonal annual accents everywhere else! The tubers can be dug right after the foliage dies back, but before the ground freezes, to store for the winter in a box of slightly damp sand or in a paper bag in a frost-free but cool storage area such as a garage or shed.
Planting and Application:
Add luxurious rich color to your garden beds and borders with these tall blooms. The elegant stems and mounded leaves add their dramatic coloration to pathways and walkway border gardens. Use in the garden for taller, back-of-the-border accents throughout Rose gardens, cottage borders, and as dramatic cut flower garden additions!
Black Jack Dahlias are very easy to grow in containers and planters to add incredible height and depth to container gardens, porch, and patio planters, and as fantastic fillers, specimens and accents to your balcony, deck seating, and entertaining areas where Black Jack is sure to be a conversation starter!
- Dark Crimson Burgundy-Red Double Blooms
- Tall Slender Dark Stems & Dark Green Foliage
- Fast Growing & Huge Blooms Summer to Fall
- Hummingbirds, Pollinators & Bees!
- Containers, Cut Flower & Border Gardens, & Specimen Plants
#ProPlantTips for Care:
Dahlia blooms all summer without fading in full sun to partial sun locations and prefers a wide range of soil types, as long as it is well-drained. Soak the tubers for a few hours before planting and plant them with their fingers spread out gently and pointing downwards. Water well and maintain consistent moisture, adding 3-4 inches of mulch helps considerably.
Dahlia tubers can be dug after frost and stored in all growing zones! Dig up the plants after the first frost to save your tubers for the next year. Let them dry out, and then place in paper bags or boxes in a cool place and sprinkle a little water on the tubers periodically to keep them from drying out. In a frost-free climate, leave the tubers in the ground and trim the stems once they die back.
- Full Sun to Partial Shade
- Well-Drained Organic Soil
- Easy Care Perennial
- Moderate Consistent Moisture
- Lift Tubers in Cold Growing Zones in Fall After Frost
- Appreciates Monthly Fertilizer
Black Jack Dahlia adds luxurious depth and romantic drama to garden beds, borders & containers! Order these near-black blooms for your garden today at NatureHills.com! We'll ship your quality bulbs and tubers to you at the appropriate planting time for your hardiness zone!
