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{% assign last_slide = forloop.index %} {% endfor %}
All media depicts mature plants.

'Thomas A. Edison' Dahlia

PERENNIAL

Description

  • Deep purple petals with prolific growing and massive blooms to boot!
  • Sun-loving perennials ideal for borders, cut florals, and cottage gardens.
  • Tuberous roots allow for cold climate gardeners to dig up for the following year.
  • Zones 9-11, 36-48" tall x 18-24” wide, with 8” blooms.
Zone 9-11
Light sun
medium

{% assign discount_amount = 0 %} {% if variant.price < variant.compare_at_price %} Sale {{- variant.price | minus: discount_amount | money | remove: ' ' -}}
{{- variant.compare_at_price | money | remove: ' ' -}} {% else %} {{- variant.price | money | remove: ' ' -}} {% endif %} Each
Total
{{ variant.price | times: variant.quantity | money | remove: ' ' }}
{% for option in product.options_with_values %} {% assign optionIndex = forloop.index0 %} {% assign position = forloop.index %}
{{option.name}}
{% assign sortedvalues = option.values %} {% if option.name contains 'Length' or option.name contains 'Width' or option.name contains 'Height' or option.name contains 'Depth' or option.name contains 'Thickness' or option.name contains 'Weight' %} {% assign sortedvalues = option.values | sort %} {% endif %} {% for value in sortedvalues %} {% assign inventory_quantity = 0 %} {% assign available = false %} {% assign optionVariant = false %} {% if product.options_with_values.size == 3 and optionIndex == 2%} {% for v in product.variants %} {% unless v.bogus %} {% if v.option1 == variant.option1 and v.option2 == variant.option2 and v.option3 == value %} {% assign optionVariant = v %} {% assign inventory_quantity = inventory_quantity | plus: v.inventory_quantity %} {% if v.available %}{% assign available = true %}{% endif %} {% endif %} {% endunless %} {% endfor %} {% elsif product.options_with_values.size == 2 and optionIndex == 1%} {% for v in product.variants %} {% unless v.bogus %} {% if v.option1 == variant.option1 and v.option2 == value %} {% assign optionVariant = v %} {% assign inventory_quantity = inventory_quantity | plus: v.inventory_quantity %} {% if v.available %}{% assign available = true %}{% endif %} {% endif %} {% endunless %} {% endfor %} {% else %} {% for v in product.variants %} {% unless v.bogus %} {% if v.option1 == value %} {% assign optionVariant = v %} {% assign inventory_quantity = inventory_quantity | plus: v.inventory_quantity %} {% if v.available %}{% assign available = true %}{% endif %} {% endif %} {% endunless %} {% endfor %} {% endif %} {% assign checked = "" %} {% if variant.options[optionIndex] == value%}{% assign checked = "checked" %}{% endif %} {% endfor %}
{% endfor %}
More Info on Plant Sizes

{% capture add_to_cart %}Neptune.cart.add({ id:{{ variant.id | json }}, quantity:{{ variant.quantity }}, properties:{ '_growingzone':['10a', '10b', '11a', '11b', '9a', '9b'] } }, '.atcprod-{{ variant.id }}', { quantity: {{ variant.quantity }}, image: '//www.greatgardenplants.com/cdn/shop/products/DahliaThomasAEdison-203089.png?v=1677271104', title: 'Thomas A. Edison Dahlia', option: 'One Quart' }); return false;{% endcapture %} {% assign discontinued = '' %} {% for tag in product.tags %} {% if tag contains 'discontinued' %} {% assign discontinued = 'true' %} {% endif %} {% endfor %} {% if variant.available %} {% else %} {% unless discontinued == 'true' %} Notify Me When Available {% endunless %} {% endif %}
{% if error %}
{{error.description}}
{% endif %}
View Detailed Plant Information
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Plant Spacing

Plant spacing is based on the ultimate width of the plants. This figure is normally given as a range; for example, 3-5’. If you live in a cold climate and/or want plants to fill in more quickly, plan to space at the shorter end of the range. If you live in a warm climate, are on a limited budget, or are willing to wait longer for plants to touch, use the higher end of the range. Using the larger number is recommended when calculating distance from a building or structure. There’s really no such thing as "maximum spacing": if you don’t want your plants to touch, you can space them as far apart as you’d like. All plant spacing is calculated on center, or in other words, the centers of the plants are spaced one half of their eventual width apart:

bush distance

Unless you are planting in a straight line, as you might for hedges or edging, space your plants in a staggered or zig-zag pattern for a more interesting and naturalistic look:

bush distance zigzag
white plant in hand icon

Hand-picked at our greenhouse

white shipped to door icon

Shipped to your door

Young plant icon

Arrives as young plant

background image

More Information

Description With massive 8” diameter deep purple flowers, The 'Thomas A. Edison' dahlia is a perfect moody addition to your garden this season. This heirloom favorite is a prolific bloomer and is guaranteed to add a fascinating pop of color as an accent to any border, or produce a mesmerizing effect if planted in a cluster!

Native to Mexico and South America, dahlias are late-season bloomers that boast flowers from midsummer to the first frost in fall. They thrive in hot and sunny gardens, but gardeners in cold climates can enjoy them as well! Since they have tuberous roots, cold-climate gardeners can dig up the tubers and save them for the following season. Dahlias are a perfect fit for borders, cottage gardens, pollinator gardens, and they make a lovely addition to any cut flower bouquet. When given full sun, moist soils, and protection from wind, they'll reward you with months of colorful flowers..

Great Garden Tip: tubers will need to be lifted in fall in zones 3-7 to grow the following year Details Botanical name: 'Thomas A. Edison' Dahlia
Common name: Dahlia
Zone: 9-11
Sun exposure: Full Sun (6+ hrs sun)
Height x width: 36-48" tall x 18-24” wide
Flower color: Purple
Foliage color: Green
Season of Interest: Summer-fall
Bloom time: Summer - fall
Features: heat tolerant, container plants
Uses: Border, cottage gardening, massing, pollinator plant, wildflower
 How To Grow Soil: Rich and well-draining soil.
Light: Full sun. Dahlias thrive in 6-8 hours of direct sun, with an additional fondness for morning sun.
Water: Average. Water once or twice a week, allowing the top inch of soil to dry up between watering. Keep Dahlia foliage as dry as possible in order to discourage disease.
Spacing: 18" apart
Fertilizing: Apply a 5-10-10 or 10-20-20 fertilizer after the plants sprout. Reapply every three weeks from mid-summer until fall.
Winterizing: Lift in zones 3-7 before first frost. Zone 8-10 may either lift their tubers before frost or cover thickly with mulch.
Maintenance & Pruning: Cut back foliage in preparation for digging the tubers up before the first frost. Leave around 1-2" of stem on the tubers.

Did You Know?

How to Plant Dahlia Tubers: A Step-by-Step Guide for Beginners

Dahlias are charming sun-loving perennials loved by cut flower enthusiasts, gracing the landscape with showy blooms in various colors from midsummer through the first frost. Follow our step-by-step guide on how to plant dahlia tubers below, and save it for easy access while gardening!

Learn More
Cluster of beautiful dinnerplate dahlia flowers

Customer Reviews

Based on 1 review
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S. (Texas)
Beautiful plants!

Both plants arrived healthy, strong and very well packaged! I can’t wait to for them to bloom!