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Dahlia Black Seeds for Planting

Dahlia Black Seeds for Planting

$16.99 USD
$16.99 USD
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How to Sow and Plant

Sow seeds about 0.5–1 cm deep in a seed-starting tray or pot filled with well-draining potting mix.
Keep soil moist but not water-logged until germination; germination typically occurs within 7–14 days under warm (≈18–25 °C) conditions.
Once seedlings have 3–4 true leaves and danger of frost has passed, transplant outdoors or into larger pots / garden beds. Provide full sun and well-drained, fertile soil.

How to Grow

Light: Full sun (6–8 hours/day) is essential for robust growth and abundant flowering.
Soil: Well-drained, fertile soil with good organic content; neutral to slightly acidic pH.
Water: Keep soil evenly moist, especially during growth and budding — avoid waterlogging.
Feeding: Apply balanced fertilizer or a bloom-promoting fertilizer once plants are established to encourage strong stems and larger blooms.
Support: For taller varieties, provide stakes or support to prevent stems from bending or breaking under heavy blooms.
Dead-heading / Pruning: Remove spent flowers to promote continuous blooming; pinch tips early in growth for bushier habit.

Tips

Start seeds indoors if you expect early summer flowering — then transplant outdoors after frost / when weather warms.
Ensure plenty of sunlight — Dahlias are sun-lovers; insufficient light yields weak, leggy plants.
Use well-draining soil and avoid waterlogging — Dahlias dislike soggy roots.
Fertilise and stake appropriately for larger/ taller varieties.
Dead-head regularly to prolong flowering season and maintain plant vigor.

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About
Product Information
Features
life-cycle

LIFE CYCLE

Annual

plant-characteristics

PLANT CHARACTERISTICS

dark hues

growth-habit

GROWTH HABIT

Erect

bloom-season

BLOOM SEASON

Warm

suitable-for

SUITABLE FOR

Outdoor

About
Dahlia Black Seeds for Planting
seed-type

SEED TYPE

Flower seeds

plant-type

PLANT TYPE

ornamental herb

Dahlia stands among the most popular ornamental flowers worldwide — prized for huge variety in flower shapes, sizes, and colours. Growing Dahlia from seed gives gardeners flexibility and affordability: instead of relying on tubers, seeds allow easy sowing, earlier handling, and potential for many plants. Dark-flowered or “black” Dahlia varieties add dramatic, bold contrast to flower beds and landscaping. With proper sunlight, soil and care, these plants produce abundant, showy blooms — perfect for cut flowers, garden displays, balcony pots, or border beds. Dahlias also respond well to dead-heading and fertilizer, making them rewarding for persistent bloomers.

Planting information
planting-season

PLANTING SEASON

Spring

fruit-size

FRUIT SIZE

N/A

plant-hieght

PLANT HIEGHT

Variable

light-requirement

LIGHT REQUIREMENT

Full Sun

water-needs

WATER NEEDS

Moderate

hardiness-zones

HARDINESS ZONES

Warm

container-garden

CONTAINER GARDEN

yes

plant-spacing

PLANT SPACING

~25–45 cm

planting-depth

PLANTING DEPTH

0.5–1 cm

growing-conditions

GROWING CONDITIONS

Warm

Coverage
Seed Count
Recommended Coverage
SEED COUNT
100
GTIN
036000135183

Frequently Asked Questions

Can Black Dahlia be grown alongside lighter-colored flowers?

Yes, its dark-toned blooms can create visual contrast when combined with flowers in lighter or complementary shades

How can Dahlia stems be protected from heavy rain and wind?

Taller plants may benefit from staking or other support, particularly when large flower heads place additional weight on the stems

Can Black Dahlia be used in formal flower borders?

Yes, its erect growth habit and dark-toned flowers can provide a strong vertical feature within structured borders and mixed ornamental beds

What happens to Dahlia plants after the warm flowering period?

As an annual listed on the page, the plants complete their growing cycle after flowering and seed development rather than remaining as permanent garden plants

Can Black Dahlia flowers be displayed at different heights?

Yes, the listed variable plant height allows the flowers to be incorporated into layered borders or mixed plantings with plants of different heights

How can spent Black Dahlia blooms be managed during flowering?

Removing faded flowers regularly can keep the plant tidy and encourage continued flowering during suitable warm growing conditions