36-40" tall. 'Thomas Edison' Dinnerplate Dahlia has huge 8" diameter deep purple flowers and starts blooming in mid-summer when planted in late spring. Dahlias love lots of heat and sun and enjoy a compost-enriched, well-drained garden loam for best performance. Easy-to-grow, Dahlias are a non-stop source of summer cut flowers. Protect them in windy areas by staking. Cold hardy in zones 8-10; in colder zones lift the bulbs in fall and store in a cool place over the winter. Hybridized from plants native to Central and South America.
Thomas Edison Dinnerplate Dahlia
Dinnerplate Dahlia Thomas Edison
Item Package Size
Bag of 3
Up to 8" flowers
Mid summer until frost
1 bulb / tuber per sq. ft.
Bulbs/Tubers should be planted 1" to 2" below the soil line.
Attract Butterflies, Attract Hummingbirds, Extended Bloom Time (more than 4 weeks), Easy To Grow, Good For Cut Flowers, Good For Containers
Can be grown as annuals in zones 3-7. Hardy in zones 8 – 10.
8, 9, 10
Bulb, Rhizome, Tuber
Poisonous or Toxic to Animals
Tubers and leaves are toxic if eaten in large amounts.
Spring / Summer
Ships To Canada
Summer Blooming Bulbs, including popular varieties such as gladiolus and dahlias, are planted in the spring and bloom in the summer. Most of these bulbs are tropical and require warm weather to be planted. There must not be any danger of frost and your ground temperature must have reached 55 degrees Fahrenheit before planting. Many
of our summer blooming bulbs can be planted as perennials in zones 9-10 (zone 8 if mulched), but should be treated as annuals in cooler climates. You can lift them and store them in the fall, or bring patio pots inside before frost. See page 15 of our Planting Guide for a bulb depth planting illustration. Read our article about How To Grow Dahlias.
Growing Dahlias: Plant Dahlia tubers after spring frosts in good garden soil with full sun. Dahlias must be protected from high winds, so we suggest you position them against a wall or be ready to stake them. Keep the plants well-watered and free of bugs, applying flower fertilizer as they grow. Your dahlias will be in full bloom by July or August, with the enormous flowers continuing to bloom until frost. As frost threatens, pull up the roots and trim off the stems. You can store the tubers in a cool dry place until the following spring.
View more Planting Guides, or download our complete Planting Guide for tips on caring for your plants when you receive your order, as well as planting instructions for Perennials, Spring-Planted Bulbs, Fall-Planted Bulbs, Cacti & Succulents, Xeric Plants and more.
As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Some perennials are shipped as potted plants, some as perennial roots packed in peat. The ‘Plant Information’ section describes how that item will ship. All perennials and spring-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.
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