Bulbes et tubercules d’été

Van Noort

Dahlia ‘Babylon Red’

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Advice adapted to Canada
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Preorders open November 1, 2026
Expected delivery: early April 2027.
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From bulb to bloom

Common name‘Babylon Red’ dahlia
FamilyAsteraceae
GenusDahlia
CultivarBabylon Red
Bulb typeRacines tubéreuses
Botanical nameDahlia ‘Babylon Red’
Quantity per pack1 souche de tubercules

‘Babylon Red’ Dahlia (Dahlia × hortensis) produces imposing vivid-red decorative dinnerplate blooms. Numerous florets build fully double flowerheads that dominate the clump and immediately add scale to summer borders. Sturdy stems reach about 100 cm and perform remarkably well for cutting, while green foliage provides a quiet background for the intense colour. From midsummer until the first frost, new buds keep developing when the plant receives regular moisture and nutrition. The Van Noort package contains one No. 1 tuber intended for gardeners seeking a spectacular red focal point and large flowers for dramatic bouquets, exhibition-style arrangements, or richly coloured seasonal displays.

Plant the tuber in spring after the final frost once the soil has warmed. Set it horizontally about 10 cm deep with the crown facing upward, leaving 50 to 60 cm between plants. Choose full sun in a sheltered position with fertile, humus-rich soil that stays moist yet drains thoroughly. Water deeply when the surface begins to dry without allowing standing water. Incorporate mature compost, then apply a potassium-rich fertilizer while buds form. Pinch young shoots to produce several stems and install strong stakes early in the season because giant flowerheads become heavy after rain. Tie stems loosely as they lengthen to prevent rubbing and breakage.

Place ‘Babylon Red’ toward the back of a border, in a cutting garden, or at the centre of a large bed where its height can develop. Red blooms stand out beside white cosmos, blue salvias, blond grasses, and dark foliage. Harvest stems when flowerheads are fully open and deadhead regularly to stimulate replacement buds. A very large stable container can work when watering and staking remain consistent. In cold Canadian climates, lift the tuber after the first frost, let its surface dry, and store it somewhere dark, cool, dry, and frost-free. Check firmness monthly through winter and replant only healthy tissue after the spring soil has warmed.

Light and life cycle

In the garden

Exposure
Full sun
Life cycle
Tender perennial requiring frost-free winter storage in cold Canadian regions
Hardiness
Not winter-hardy outdoors in cold Canadian regions; frost-free storage required
Planting and establishment

Planting guide

Planting & establishment

Planting depth

Environ 10 cm

Spacing / density

50 cm

Planting period

Printemps, après le dernier gel

Propagation

Divide the clump in spring, keeping part of the crown with at least one viable growing eye on each section. Division preserves the cultivar; seedlings are not necessarily true to type.

Growing method

Planter au soleil après les gelées dans un sol réchauffé et bien drainé; tuteurer dès la plantation.
Soil and care

Soil and care

Soil & care

Soil pH

Slightly acidic to neutral

Moisture

Sol régulièrement frais pendant la croissance, sans eau stagnante.

Minimum temperature

Protect from frost; store the dormant clump frost-free

Care level

Moderate

Watering

Régulier en croissance, sans excès d’eau

Soil type

Fertile, humifère et bien drainé

Fertilization

Work mature compost into the soil at planting. During active growth, use a flowering fertilizer as needed, following its application rate and frequency. Excess nitrogen mainly encourages foliage, so account for compost and previous feedings before adding more.

Seasonal care

In summer, tie lengthening stems loosely and remove spent blooms. Watch young shoots for slug damage. Once light frosts have blackened the foliage, lift the clump before the ground freezes. Let its surface dry, then store it somewhere cool and frost-free; check during winter for rot or excessive shrivelling.
Growing in containers

Container growing

Container growing

Recommended pot size

Approximately 50 cm across, with drainage
Through summer, check beneath the surface of the potting mix rather than watering on a fixed schedule. Water until excess drains, empty the saucer and tie stems as they grow. Decide where to keep the dormant clump frost-free: a container left outdoors does not protect it from a cold Canadian winter.
Growth and flowering

Size, flowering & harvest

Mature height

Environ 100 cm

Width / spread

Environ 50 cm selon les conditions

Flower color

Scarlet red

Foliage color

Dark green

Foliage type

Deciduous

Growth rate

Fast

Growth habit

Dressé et ramifié

Bloom period

Large, fully double scarlet-red dinnerplate blooms. New buds follow through summer and until frost when care and conditions support flowering.

Harvest

For bouquets, cut fully open flowers during the cooler part of the day.
Garden companions

Garden associations

Companion plants & uses

Companion plants

White cosmos, blue salvias, blond grasses and dark foliage, with access left around the stems.

Other recommended plants

Sauge, cosmos et graminées de soleil dans un sol fertile et drainé.

Garden use

Place this dahlia towards the back of a border or at the heart of a bed wide enough for its foliage. Its large red flowers draw the eye from a distance; lighter plants around the base keep the scene airy. In a cutting garden, leave a path for tying stems and harvesting without trampling roots.

Frequently asked questions

Frequently asked questions

Should I pinch the young shoots?
To encourage branching, pinch the growing tip above three or four well-developed leaf pairs. Flowering may start a little later, but several stems develop. Keep using loose ties afterwards: pinching does not replace support for the large blooms.
How can I support the flowers after rain?
Wet flowerheads become heavy. Install a sturdy stake early and tie several stems in gradually with soft ties, without constricting them. A position sheltered from strong winds also reduces the risk of breakage.
Will closed buds keep opening in a vase?
Choose flowers that are already fully open: dahlia buds cut too early do not open well. Use a clean tool, remove leaves that would sit below the waterline and place the stems promptly in a clean vase.
Can I leave it in its container over winter?
Not outdoors in cold Canadian regions. The container freezes and does not protect the tubers. Once growth has finished, provide a cool, frost-free place for the dormant clump; monitor moisture during storage to avoid both rot and shrivelling.
Why do some divided tubers fail to grow?
Each division must retain part of the crown with at least one viable growing eye. A detached tuberous root without an eye will not make a new plant, even if it feels firm. If you cannot identify the eyes confidently, keep the clump whole rather than dividing it at random.

Wildlife and pets

Wildlife & precautions

Reported toxicity

Yes

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