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Mystery Day Dinner Plate Dahlia

SKU: AM001063
per Bag of 3
No longer available this season.
With deep burgundy petals dipped in white, 'Mystery Day' Dahlia’s double blooms deliver an unexpectced surprise to every passerby. Each full, plate-sized flowerhead measures up to 10" across and features slighty-rounded petal edges. 'Mystery Day's blooms are complemented by healthy green foliage and loads of nearby buds, each at a different stage of unfurling - be sure to steal some for the vase when you're out cutting flowers! (Dahlia)
key features
Botanical Name
Dinner Plate Dahlia Mystery Day
Growing Zones
Zone 3, Zone 4, Zone 5, Zone 6, Zone 7, Zone 8, Zone 9, Zone 10
Attracts Butterflies, Attracts Hummingbirds, Easy To Grow, Cut Flowers, Container Planting
Light Requirements
Full Sun
Mature Height
32-40" tall
Bloom Time
Summer until frost


The Mystery Day Dahlia is one of the most popular Dahlias of all time. It has been a favorite of Dahlia lovers for decades, for its brilliant color combination and beautiful representation of the double Dahlia form. Dahlias put on a stunning show both in the garden and cut to bring inside for flower arrangements. With dozens of varieties to choose from, you can literally plant any color combination in your sunny garden for a delightful, stunning show. Try different varieties for a unique combination of blooms in your garden this summer until fall. Dinnerplate Dahlias are, simply put, the large plants with the huge flowers. The always-double flowers are up to 8", sometimes a whopping 10" across, so the name makes sense.

Decorative Dahlias This group includes the Dinnerplates and also other taller (to 4 ft.) plants with double, chrysanthemum-like flowers.

Growing Dahlias: All the gardener needs to do is plant the tubers after spring frosts in good garden soil with full sun. It's best to position them against a wall or be ready to stake them, since they are brittle, and must be protected from high winds. (If you've grown perennial Delphiniums, the plant size and growth is similar, but success with Dahlias is much easier.) Keep them free of bugs, well-watered, and well-fertilized as they grow, and your dahlias will begin to set buds by midsummer and be in full bloom, usually during July or August. Then the huge flowers keep coming until frost.

When frost threatens, just pull the roots up, cut off the stems, and store the tubers until the following spring. Each fall, you'll be amazed how the 'bulbs' have multiplied during the summer, giving you more and more to divide and enjoy the next year.

One expert has said, "Never have so many gardeners received so much for so little work, as when they grow dahlias.''