PROMOTION: 30% off all tulip bulbs!

View more pictures

Hide images

Share your pictures? Hide split images
I have read and agree the terms and conditions of service.

Dahlia Mystery Day

Dahlia Mystery Day
Dahlia

5,0/5
2 reviews
0 reviews
0 reviews
0 reviews
0 reviews

Well-packaged product, sent with a planting guide.

Thérèse M., 04/05/2018

Leave a review → View all reviews →

Schedule delivery date,

and select date in basket

This plant carries a 6 months recovery warranty

More information

Value-for-money
This Dahlia with beautiful bicoloured flowers blooms in a explosion of colours in the garden. Its very double flowers are composed of ligulate petals in a deep red to purple, widely tipped with pure white, creating a striking overall effect. A medium-sized variety, with green, smooth-textured foliage. Also superb in bouquets.
Flower size
18 cm
Height at maturity
1 m
Spread at maturity
80 cm
Exposure
Sun
Hardiness
Hardy down to -4°C
Soil moisture
Moist soil
plantfit-full

Does this plant fit my garden?

Set up your Plantfit profile →

Best planting time March to April
Recommended planting time March to May
J
F
M
A
M
J
J
A
S
O
N
D
Flowering time July to November
J
F
M
A
M
J
J
A
S
O
N
D

Description

The Decorative Dahlia Mystery Day is one of the favorite varieties for gardeners around the world, an irresistible creation from 1994 that continues to impress, including in neighbouring gardens. Its large bicoloured, fully double flowers bloom in a explosion of colours from summer to frost. They are composed of long ligulate petals ranging from deep red wine to dark purple, widely tipped with pure white, creating a striking overall effect. A flower of excellent durability, it stands tall no matter what, even in rain or strong winds.

 

Dahlias belong to the large family of asters and are originally from the high plateaus of Mexico. Currently, the approximately 25,000 horticultural varieties created by humans have arrived in gardens around the world, much to our delight. Dahlias are classified based on the shape of their heads. 'Mystery Day' is a decorative Dahlia with large flowers. The inflorescences are composed of several rows of almost flat, long and flexible outer ligules, slightly incurved and curved towards the stem, allowing rain to flow rather than be retained. The heads are opulent and can measure up to 20 cm (8in) in diameter. Each ligule is very dark red at the base, transitioning to a brighter red and ending in a white tip, which may vary in size depending on the flower. The juxtaposition of all these bicolored flowers turns the plant into a captivating bouquet. The plant will reach approximately 1 m (3ft) in height and 70 cm (28in) in width, with a bushy habit. Its smooth-textured leaves are deeply denticulate. The flowering of this variety begins in July and ends in October, if faded flowers are regularly removed or made into bouquets.

 

Today, Dahlias are essential in gardens. Initially, they were cultivated in Mexico as a root vegetable. Their poor taste quickly relegated them to the status of ornamental plants, but they are still welcome in vegetable gardens to bring some colour among the vegetables and provide a supply of cut flowers. 'Mystery Day', with its strong personality, can be used as a standalone plant, but will be enhanced by a backdrop of grasses (such as Stipa, Pennisetum, Crested Wheatgrass, Carex...) or phlox and white or red cosmos.

Dahlia Mystery Day in pictures

Dahlia Mystery Day (Flowering) Flowering

Plant habit

Height at maturity 1 m
Spread at maturity 80 cm
Growth rate fast

Flowering

Flower colour multicoloured
Flowering time July to November
Inflorescence Flower head
Flower size 18 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Botanical data

Genus

Dahlia

Cultivar

Mystery Day

Family

Asteraceae

Other common names

Dahlia

Origin

Cultivar or hybrid

Product reference67391

Planting and care

Dahlia 'Mystery Day' is easy to grow in all regions. For abundant flowering, it is good to follow a few simple rules. Plant the tubers in full sun as soon as the last frost is over. Rich, damp, and well-drained soil is perfect. However, waterlogging would promote tuber rot. Feel free to amend the soil with compost and sand if necessary. Work the soil deeply and enrich it, for example, with bonemeal.  Place your tuber and crumble the soil well to fill without air pockets. Your dahlia should be covered with about 6 cm (2in) of soil. At the end of planting, water generously once and then regularly repeat this watering during the first 6 weeks to help with rooting.

 

Dahlias are sensitive to cold, so they need to be overwintered. In November, the first frost blackens the foliage, which is the time to dig them up. Carefully remove the tubers, removing as much soil as possible. Let the foliage dry so that the tubers can replenish their reserves. Then cut the stems to 10 cm (4in). Spread your bulbs in a box on newspaper. Store them in a frost-free, dry, cool, and dark place, such as a frost-free garage or attic, for example. In warmer regions, or areas close to the coast, where there are few frosty days per year, it is possible to leave them in place. In this case, simply cover the ground with a carpet of leaves or straw for protection.

 

Planting period

Best planting time March to April
Recommended planting time March to May
Planting depth 10 cm

Intended location

Suitable for Meadow
Type of use Border, Vegetable garden
Hardiness Hardy down to -4°C (USDA zone 9b) Show map
Ease of cultivation Amateur
Planting density 5 per m2
Exposure Sun
Soil pH Any
Soil moisture Moist soil

Care

Pruning instructions Remove faded flowers regularly, this will encourage flowering.
Pruning Pruning recommended once a year
Pruning time July to October
Soil moisture Moist soil
Disease resistance Very good
Overwinter Needs to be stored
5/5
No reviews
No reviews
No reviews
No reviews

Haven't found what you were looking for?

We only deliver seed and bulb products to your country. If you add other products to your basket, they cannot be shipped.