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Bulb
Asteraceae
Van Noort
Dahlia pinnata
‘Sir Alf Ramsey’ Dahlia
From bulb to bloom
Common nameSir Alf Ramsey dahlia
FamilyAsteraceae
GenusDahlia
SpeciesHybride horticole décoratif géant
CultivarSir Alf Ramsey
Bulb typeTuber
Botanical nameDahlia
Quantity per pack1
Bulb sizeNo 1
‘Sir Alf Ramsey’ dahlia (Dahlia pinnata) produces large, fully double flowers in lavender pink and pale lilac, fading toward a creamy centre. Blooms can reach about 25 cm across on plants approximately 100–120 cm tall. This giant dahlia is ideal for sunny borders, cutting gardens and large containers. The package contains one tuber.
Plant the tuber 10 cm deep after the final frost, with its bud facing up, in fertile, loose and well-drained soil. Choose full sun and shelter from strong winds. Install a sturdy stake at planting, water sparingly until shoots emerge, then water when the surface dries.
Pair ‘Sir Alf Ramsey’ with blue salvias, white gauras or airy grasses. Cut nearly open flowers for bouquets and remove faded blooms regularly. After the first frost, lift the tuber and store it in a cool, dry, frost-free place until 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
10 cm (4 po)
Spacing / density
50 cm (20 po) entre les plants
Establishment temperature
Sol à environ 16 °C ou plus
Rooting time
Quelques semaines, selon la chaleur et les conditions de culture
Planting period
Spring, after the last frost
Propagation
Division of tubers, each bearing a viable bud
Growing method
Après les gels, plantez à 10 cm de profondeur et à 50 cm des autres plants, au soleil dans un sol fertile et drainé. Installez un tuteur solide et conservez la souche hors gel en hiver.
Soil and care
Soil and care
Soil & care
Soil pH
Slightly acidic to neutral
Moisture
Sol frais pendant la croissance, sans eau stagnante.
Minimum temperature
5 °C (41 °F)
Care level
Moderate
Watering
Modéré : arrosez régulièrement après la levée, sans détremper le sol.
Soil type
Fertile, riche en matière organique et bien drainé
Fertilization
Mix mature compost into the soil before planting. If needed, use a flowering-plant fertilizer according to the package directions.
Seasonal care
Plant after the last spring frost in warm soil and install a stake. Water as needed and remove faded flowers. After the first frost, lift the tuber and store it in a cool, dry, frost-free place.
Growing in containers
Container growing
Container growing
Recommended pot size
Deep, very stable 40 to 50 L container
Choose a large, stable pot with drainage holes and a rich, well-drained mix. Add a stake early, water as needed and protect the tuber from frost in winter.
Growth and flowering
Size, flowering & harvest
Mature height
Environ 125 cm
Width / spread
Environ 50 cm
Flower color
Lavender pink to pale lilac with a cream centre
Foliage color
Green
Foliage type
Deciduous
Growth rate
Fast
Growth habit
Touffe dressée
Fragrance
Parfum non marqué
Bloom period
Large double decorative flowers in lavender pink and pale lilac, lightening toward a creamy centre. Suitable for bouquets.
Harvest
July to October. Cut fully open flowers for the best vase life.
Garden companions
Garden associations
Companion plants & uses
Companion plants
Pair with cosmos, salvias and ornamental grasses that also enjoy sun and well-drained soil.
Other recommended plants
Associez-le à des sauges bleues ou à des graminées légères dans un massif ensoleillé.
Garden use
Place this giant dahlia in the middle or back of a sunny, sheltered border. Its large flowers also suit cutting gardens and bouquets.
Frequently asked questions
Frequently asked questions
When should Sir Alf Ramsey dahlia be planted?
Plant after the last frost when the soil has warmed. Place the tuber horizontally with its bud up and install a stake at planting time.
What colours do Sir Alf Ramsey flowers display?
The double blooms range from lavender pink to pale lilac, lightening toward a creamy centre.
How should Sir Alf Ramsey be supported and encouraged to bloom?
Install a sturdy stake at planting and tie the stems loosely as they grow. Water when the soil begins to dry and remove faded flowers regularly.
Can Sir Alf Ramsey grow in a large container?
Yes. Choose a deep, stable container with drainage holes and a rich, airy mix. Plant one tuber, add a support, and place the pot in full sun sheltered from strong winds.
How should Sir Alf Ramsey be overwintered in Canada?
After the first frost, cut back the stems and carefully lift the tuber. Let the surface dry, then store it in a cool, dry, frost-free place and check it periodically through winter.
Wildlife and pets
Wildlife & precautions
Reported toxicity
Yes
Supporting wildlife
Highly double flowers offer little accessible pollen or nectar. To support bees and butterflies, pair Sir Alf Ramsey with salvias, verbenas, sweet alyssum, or other resource-rich single flowers, and avoid pesticides on neighbouring flowerheads. Remove faded flowers regularly to support the formation of new buds.
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