Dahlia géant aux fleurs doubles striées

Van Noort

Dahlia pinnata

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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‘Café au Lait Twist’ giant dahlia
FamilyAsteraceae
GenusDahlia
CultivarCafé au Lait Twist
Bulb typeRacines tubéreuses
Botanical nameDahlia
Quantity per pack1
Bulb sizeNo 1

‘Café au Lait Twist’ Dahlia (Dahlia × hortensis) unfolds immense decorative flowers reaching approximately 21 cm across. Very pale creamy-yellow florets carry stripes, spots, and splashes of purplish pink, sometimes strong and sometimes softer. No flowerhead precisely repeats the previous one, creating a lively, graphic, naturally nuanced display. The upright clump reaches about 100 cm and carries blooms above green foliage from midsummer until frost. The Van Noort package contains one No. 1 tuber, perfect for adding a multicoloured feature to sunny borders and summer bouquets where its changing patterns can be appreciated from every angle.

Plant the tuber in spring after the last frost once soil has warmed and drained. Set it horizontally 10 cm deep with the crown and buds facing upward, then allow 50 cm around the developing clump. Give it a warm, sheltered position in full sun with fertile, humus-rich soil that remains moist but drains thoroughly. Water deeply at the base when the surface begins to dry without saturating the crown. Add mature compost at planting, then potassium-rich fertilizer while buds form. Pinch young shoots and install a sturdy stake early because large flowers hold water and become heavy after rain. Tie lengthening stems loosely and avoid excessive nitrogen that encourages soft leafy growth.

Place ‘Café au Lait Twist’ toward the back of a border, through a cutting garden, or at the centre of a large bed where its patterns can be observed. Pair it with cream cosmos, purple salvias, violet verbenas, and bronze grasses. Harvest flowerheads when fully open and remove faded ones to stimulate replacements. A large heavy container works when drainage, staking, and watering remain consistent. In cold Canadian climates, lift the tuber after the first frost, let its surface dry, then store it somewhere dark, cool, dry, and frost-free. Inspect it monthly and replant only firm sections carrying viable buds after the soil warms in spring.

Light and life cycle

In the garden

Exposure
Full sun
Life cycle
Perennial
Hardiness
Zone 10
Planting and establishment

Planting guide

Planting & establishment

Planting depth

Environ 10 cm

Spacing / density

Espacez les souches d’environ 50 cm (20 po).

Establishment temperature

Sol réchauffé autour de 16 °C ou plus, après les dernières gelées

Rooting time

Enracinement variable; les pousses apparaissent généralement en 2 à 6 semaines selon les conditions.

Planting period

Printemps, après les dernières gelées

Propagation

Division of tubers carrying at least one viable bud

Growing method

Après les gelées, plantez la souche au soleil, dans un sol fertile et drainé, à environ 10 cm de profondeur et 50 cm des autres plants. Tuteurez et conservez hors gel.
Soil and care

Soil and care

Soil & care

Soil pH

Slightly acidic to neutral

Moisture

Sol frais et bien drainé, sans eau stagnante.

Minimum temperature

5 °C (41 °F)

Care level

Moderate

Watering

Régulier pendant la croissance, sans détremper le sol.

Soil type

Fertile, riche et bien drainé

Fertilization

Add mature compost at planting, then potassium-rich fertilizer while buds form.

Seasonal care

Plant, pinch, and stake in spring. Water, feed, and cut in summer. Lift and store after frost.
Growing in containers

Container growing

Container growing

Recommended pot size

Large stable container, at least 50 cm (20 in.)
Use a large heavy free-draining container, install a central stake, and monitor moisture frequently in hot weather. Cutting fully open flowers stimulates replacements and extends.
Growth and flowering

Size, flowering & harvest

Mature height

Environ 100 cm

Width / spread

Environ 50 cm

Flower color

Pale creamy yellow with purplish-pink stripes and spots

Foliage color

Dark green

Foliage type

Deciduous

Growth rate

Fast

Growth habit

Dressé et buissonnant

Bloom period

Cream and purplish-pink flowers repeat from midsummer until frost when faded flowerheads are removed.

Harvest

July to October. Cut fully open flowers for the best vase life.
Garden companions

Garden associations

Companion plants & uses

Companion plants

Pair with cream cosmos, purple salvias, violet verbenas, and bronze grasses to repeat its contrasts. Cutting fully open flowers stimulates replacements.

Plants to avoid

Surveillez les limaces et les escargots sur les jeunes pousses, ainsi que les pucerons et les perce-oreilles.

Other recommended plants

Cosmos blancs, sauges ornementales et graminées fines au soleil.

Garden use

Place in a sunny area where large multicoloured flowerheads can be observed without being hidden.

Frequently asked questions

Frequently asked questions

When should ‘Café au Lait Twist’ be planted in colder Canadian regions?
Plant after the last frost, generally from May to early June in colder Canadian regions, once soil is warm and drained.
How deep should the tuber be planted?
Set the tuber horizontally 10 cm deep with the crown and visible buds facing upward.
Do patterns vary among flowers?
Yes, the number and width of stripes or spots naturally change, so every flowerhead remains unique.
Can it grow in a large container?
Yes, use a heavy container at least 50 cm wide, generous drainage, a robust stake, and regular watering.
How should the tuber be overwintered in colder Canadian regions?
After the first frost, lift the tuber, dry its surface, and keep it dark, cool, dry, and frost-free.

Wildlife and pets

Wildlife & precautions

Reported toxicity

Yes

Supporting wildlife

Highly double flowers hide almost all of their disc and offer little accessible pollen or nectar. Their value is mainly ornamental. Support wildlife by pairing this dahlia with salvias, sweet alyssum, verbenas, and other simple flowers. Avoid insecticides, provide shallow clean water, and maintain several flowering periods in the border.

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