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Tuber
Asteraceae
Giant Dahlia ‘Myrtle’s Folly’ (Dahlia)
Dahlia × pinnata
Myrtle’s Folly produces large, double, fringed peach and yellow flowers on an upright 90 cm (35 in.) clump. Plant a No. 1 tuber 10 cm (4 in.) deep in full sun in fertile, humus-rich, well-drained soil. Install a support early, pinch the shoot, water deeply at the base, and remove spent flowers until frost. This feathery variety is suitable for beds, large pots, and bouquets. In Quebec, lift the tuber in the fall and store it in a cool, dry, frost-free place. Its twisted florets provide an instantly recognizable texture up close and from afar. Flowering renews from early summer until the first frosts.
- Quantity
- 1 tuber
- Exposure
- Sun
- Life cycle
- Tender perennial
- Hardiness
- Zone 8
Discover the plant
Common nameGiant Dahlia ‘Myrtle’s Folly’
FamilyAsteraceae
GenusDahlia
TypeTuber
Botanical nameDahlia × pinnata
Giant Dahlia 'Myrtle's Folly' (1 tuber), A festival of colors and textures! ??
Giant Dahlia 'Myrtle's Folly' is an exceptional and unique variety, with its fringed petals in shades of bright pink and golden yellow . Its large ruffled 20cm (8") flowers provide a spectacular effect in beds, borders and floral arrangements. Its lush habit and generous flowering from June until the first frosts make it a must-have for a vibrant and vibrant garden.
?? Characteristics of the variety
?? Height : 90 cm (36")
?? Flower size : 20 cm (8")
?? Exposure : Full sun
?? Hardiness : Not hardy (dig up the tubers before winter)
?? Deer Resistance : Low (can be nibbled!)
?? Water requirements : Medium (moist but well-drained soil)
?? Ideal soil : Loamy or sandy, acidic to neutral pH
?? Quantity : 1 tuber
?? Planting and growing Dahlia 'Myrtle's Folly'
?? When to plant?
??? From March to May , after the last frosts.
?? Where to plant it?
?? In open ground : Ideal for flower beds and borders .
?? In pot : Suitable for large containers with good drainage.
?? How to plant?
1?? Soak the tuber in water a few hours before planting.
2?? Plant 4 cm deep , spacing the plants 50 cm apart.
3?? Stake tall stems to prevent them from bending under the weight of the flowers.
4?? Water regularly , but not excessively to avoid rot.
?? Tip : Pair it with purple and orange dahlias for a contrasting and luminous effect !
??Care for the Dahlia 'Myrtle's Folly'
?? Watering : Keep the soil moist but well drained , especially in dry periods.
?? Fertilizer : Add a potassium-rich fertilizer every two weeks to stimulate flowering.
?? Pruning : Remove faded flowers to encourage new growth.
?? Wintering :
?? Dig up the tubers in the fall , let them dry and store them in a cool, dry place.
?? Why choose Dahlia 'Myrtle's Folly'?
? Long and abundant flowering
? Unique visual effect thanks to its fringed petals
? Ideal for bouquets with its extravagant flowers
? Easy to grow and maintain
? Give your garden a burst of color and whimsy with the Dahlia 'Myrtle's Folly'! ?
?? Combine with other giant dahlias for a colorful garden! ??
Planting guide
Plant well.Grow beautifully.
Planting depth
10 cm (4 in)
Best planting time
Spring, when the ground is warm
Propagation
Division of tubers, each bearing a viable bud
Growing method
After the last frost, loosen a sunny area to a depth of 12 inches (30 cm) and incorporate mature compost. Place the tuber horizontally 4 inches (10 cm) deep, bud side up, then leave 20 inches (50 cm) around the crown. Backfill gently and only water if the soil becomes dry before emergence. Pinch the shoot 8 to 12 inches (20 to 30 cm) above a pair of leaves. Immediately install a sturdy stake. When growth accelerates, water deeply at the base and fertilize sparingly, favoring potassium for buds. Tie the stems with soft ties, harvest flowers when almost open, and remove spent flower heads. After the first frost, cut the stems, lift the tuber, allow its surface to dry, and store it in a cool, dry, frost-free place. The peach-pink and yellow contrast remains sharper when the plant receives at least six hours of direct sun and regular feeding without excess nitrogen. An early-installed stake supports the 7-inch (18 cm) flower heads after rain without compressing stems or damaging active roots. Remove spent flowers before seed formation so the plant directs its energy towards new buds until the first frost.
Soil and care
The right care,at the right time.
Soil pH
Slightly acidic to neutral
Minimum temperature
5 °C (41 °F)
Care level
Easy
Watering
Water regularly to maintain evenly moist soil without overwatering. An organic mulch helps retain moisture during hot summer periods. Water lightly before sprouting, then deeply at the base when the surface dries out. In Quebec, after the first frost, lift the tuber, let its surface dry, label it, and store it in the dark, cool, dry, and frost-free.
Soil type
Choose a humus-rich soil that retains moisture while allowing excess water to drain. Check drainage after rain: water should be able to leave the root zone. Work the soil when it is dry to avoid compacting it. Adapt amendments to its actual texture. In containers, use appropriate potting mix and a pot with drainage holes. Keep these openings clear and avoid any water accumulation in the saucer.
Fertilization
Incorporate mature compost before planting. At the start, use a balanced formula with low to moderate nitrogen, then favor more potassium when buds appear. Follow the recommended dosage and water afterward. Too much nitrogen produces tender stems and fewer flowers. The peach-pink and yellow contrast remains sharper when the plant receives at least six hours of direct sunlight and regular feeding without excess nitrogen.
Seasonal care
In spring, inspect the tuber, remove only rotten tissue, and plant after the last frost in warmed soil. Install support immediately. Until emergence, avoid repeated watering. In early summer, pinch the shoot at 20 to 30 cm (8 to 12 in), tie new stems, and keep the soil moist without saturation. As soon as buds appear, fertilize moderately with more potassium. In summer, water deeply at the base during dry periods, harvest nearly open flowers, and continuously remove spent blooms. Monitor for slugs, aphids, earwigs, spider mites, and gray mold. After the first frost, cut the stems, gently lift the tuber, let its surface dry, label it Myrtle's Folly, and store it in a cool, dark, dry, and frost-free place. Check it monthly throughout the winter. The peach-pink and yellow contrast remains sharper when the plant receives at least six hours of direct sun and regular feeding without excess nitrogen. An early-installed stake supports the 18 cm (7 in) flower heads after rain without compressing stems or damaging active roots. Remove faded flowers before seed formation so the clump directs its energy towards new buds until the first frost. Always water slowly at the base, then allow the top layer to breathe to maintain a balance of moisture, oxygen, and drainage. The peach-pink and yellow shades pair particularly well with blue, white, purple perennials, and light grasses.
Container growing
A garden,within reach.
Recommended pot size
Capacity of 40 to 50 L, deep and very stable
Container gardening requires planning for the necessary root volume and the plant's final height. Choose a stable pot with drainage holes and a suitable planting medium. Leave enough space to respect the recommended depth and spacing, rather than crowding plants to immediately fill the pot. Place the container in the indicated exposure and regularly check the moisture, especially in hot or windy weather. A pot is more exposed to temperature variations than planting in open ground. Therefore, plan for a wintering location from the outset that is compatible with the plant's needs and your region's climate. Plant in spring when all risk of frost has passed and the soil is sufficiently warmed. Choose a sunny spot, sheltered from strong winds, in fertile, well-drained soil. Arrange the tuberous roots with their crown and buds facing upwards, without breaking fragile connections. Install a stake at planting time if support will be needed, to avoid damaging the roots later. Water sparingly at the start, then adjust watering to foliage growth. Consistently soggy soil around the tubers should be avoided, especially before the first shoots appear. Plan to bring the storage organs indoors for winter in Quebec to protect them from frost.
Bloom and dimensions
Its place,in your garden.
Mature height
110 cm (43 in)
Width / spread
50 cm (20 in)
Flower color
Peach pink and yellow
Foliage color
Green
Foliage type
Null and void
Growth rate
Quick
Bloom period
A spectacular display of large flowers with fringed and twisted petals in shades of pink, orange, and yellow from July until the first frosts. The flowers attract pollinators and have excellent vase life. Giant Dahlia ‘Myrtle’s Folly’ (Dahlia ‘Myrtle’s Folly’) The giant dahlia ‘Myrtle’s Folly’ is distinguished by its large, double flowers with narrow, twisted florets that are split at their tips. This fringed variety does not display a visible central disc. From early summer until the first frost, the flower heads continuously appear on stems suitable for borders, cutting gardens, and large containers.
Harvest
July to October. Harvest the flowers early in the morning when fully open for excellent vase life. Continue to deadhead spent blooms to encourage new bud production.
Garden associations
In goodcompany.
Companion plants
To accompany the 'Myrtle's Folly' giant dahlia, you could consider cosmos, zinnias, or ornamental salvias. Choose companion varieties based on their height, flowering period, and the colors you wish to combine. Most importantly, ensure that their sun exposure and water needs are suitable for the same location. Leave enough space so that the leaves do not block young shoots and to allow easy access to each plant during maintenance. These pairings are for composing the garden's aesthetic; they do not guarantee protection against pests or diseases. Adjust the layout after observing one growing season.
Frequently asked questions
Your questions,answered.
When to plant Dahlia Myrtle's Folly?
Plant the tuber after the last frost, when the soil has warmed up and is no longer saturated. Plant it 10 cm (4 in) deep, bud facing up, in fertile, humus-rich, well-drained soil. Leave 50 cm (20 in) around the crown and install a support immediately. In a cold region, start it in a pot four to six weeks earlier, then gradually acclimate the shoot before planting it out. Water very little before emergence to avoid rot, then increase watering when the roots and stems are active. Full sun develops strong stems and intensifies the peach-pink and yellow contrast.
What colors are the flowers of Myrtle's Folly?
Myrtle’s Folly produces yellow blossoms, broadly colored peach-pink toward the tip and edged with a fine red rim. The proportion of red varies from petal to petal and flower head to flower head, creating a lively pattern rather than a perfectly regular band. The international register mentions flowers reaching about 18 cm (7 in), while Van Noort classifies the variety as Dinnerplate. Ample light helps the stems remain firm and makes the contrast sharper. However, avoid wetting the flowers when watering: water trapped between the petals can stain the colors and promote gray mold in cool weather.
How to support and help Myrtle's Folly flourish?
Install a sturdy stake at planting to avoid damaging the roots later. Tie the stems with soft ties as they grow. Pinch back the young shoot to 8 to 12 inches (20 to 30 cm) to encourage branching. Water deeply at the base when the surface is dry, then allow excess water to drain. Incorporate mature compost initially, then use a moderate fertilizer, richer in potassium once buds begin to form. Avoid excess nitrogen, which produces tender stems and abundant foliage. Regularly remove spent flowers so that energy is directed to subsequent buds until frost.
Can Myrtle's Folly grow in a large pot?
Yes, choose a stable container of 40 to 50 L, deep, well-drained, and filled with rich but aerated potting soil. Plant a single tuber 10 cm (4 in) deep and insert the support before the roots develop. Place the pot in full sun, protected from gusts of wind. Water sparingly before sprouting, then abundantly when the top layer dries, without leaving water in the saucer. Apply moderate liquid fertilization, richer in potassium as soon as buds appear. Turn the container weekly, pinch back new growth, and remove faded flowers to maintain a balanced shape and generous blooming.
How to overwinter Myrtle's Folly in Quebec?
After the first frost blackens the foliage, cut back the stems, leaving a short stub. Lift the tuber with a fork, working far enough away so as not to damage it. Gently remove excess soil, allow the surface to dry in a ventilated area, and clearly label it Myrtle's Folly. Store it in a cool, dark, dry, and frost-free place, in a slightly insulating material that limits drying out without retaining water. Inspect it monthly. Remove only parts showing active rot and increase ventilation if condensation appears. Wait until after the last spring frost and for the soil to warm up before replanting.
Wildlife and pets
Life,around your plants.
Supporting wildlife
The very double flowers limit access to pollen and nectar. Myrtle's Folly contributes mostly ornamental value. To feed bees and butterflies, plant sages, verbenas, coneflowers, or other single flowers rich in resources nearby. The peach-pink and yellow contrast remains sharper when the plant receives at least six hours of direct sun and regular feeding without excess nitrogen.
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