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Dahlia

Dahlia Thomas Edison

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Quantity per package: 1

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Dahlia ‘Thomas Edison’ is a classic decorative dahlia celebrated for its richly layered, deep purple blooms and strong garden presence. This striking variety produces fully double flowers up to 25 cm (10 inches) across, creating bold colour and texture in garden beds, borders, and floral arrangements. Its compact, upright habit and vigorous stems make it a reliable choice for gardeners and florists alike.

Thomas Edison thrives in full sun and well-drained soil, delivering vibrant blooms from mid-summer through the first frost with proper care. Its timeless colour and dependable performance have made it a favourite for decades.

Key Features

  • Decorative dahlia with deep violet-purple, fully double blooms

  • Large flowerheads up to about 25 cm (10 inches) wide

  • Ideal for borders, cut flower gardens, containers, and pollinator-friendly plantings

  • Long flowering season from mid-summer to first frost

  • Sold as a premium tuber clump for spring planting

Each order includes one premium dahlia tuber clump selected for vigorous growth and abundant flowering performance.

Whether you are adding dramatic colour to garden borders or harvesting bold purple blooms for arrangements, Dahlia Thomas Edison delivers show-stopping impact throughout the growing season.

Specs & Details

Bloom time: Mid Summer

Flower Colour: Purple

Sunlight: Full Sun

Shipping Season: Spring

Planting Depth: 10 cm (4")

Plant Spacing: 30 cm (12")

Size: No1 tuber

Hardiness Zone: 8

Suitable Zone: 3 - 10 Lift & store

Height: 100 cm (40")

Genus: Dahlia | Class: Decorative | Variety: Thomas Edison
Sun loving
Reblooming
Perfect for pots
Easy to grow
Pollinator friendly
Perfect for cut flowers

Planting & Care

Dahlia Planting Guide

  • Choose a sunny location that receives at least 6–8 hours of direct sunlight daily for strong growth and abundant blooms.
  • Plant dahlia tubers after the danger of frost has passed and the soil has warmed, as cold, wet soil can cause tubers to rot.
  • Loosen the soil well and dig a hole about 6 inches deep. Place the tuber horizontally with the eye facing up.
  • Cover with soil and water lightly at planting. Avoid heavy watering until new growth appears.
  • Once shoots emerge, water regularly, keeping the soil evenly moist but never waterlogged.

For more detailed information, find all of our planting guides here.

Shipping & FAQs

When can I expect to receive my fall order?

Fall planting bulbs ship from late September through November.

• Orders placed before September 15 usually arrive in late September to early October

• Orders placed between September 15 and October 15 usually arrive in October

• Orders placed after October 15 typically ship within 5 business days

For more information about your shipment, please visit our FAQ's.

Returns

At Coast Farms, we guarantee that our plants are in good health, true to name, and ready to begin growing in your garden upon arrival.

Please notify us of any concerns regarding plant condition, shipping damage, shortages, or order accuracy within three (3) days of delivery at hello@coastfarms.ca.

For more information, please visit our Return Policy page.

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