Costa Farms

 

Passionate about plants? So are we! Costa Farms is a wholesale grower that discovers, develops, and grows plants for your home and life -- indoors and out. We’re your online gardening resource for plant info and inspiration. Our articles, blogs, tips, and photos help you use plants to beautify your living spaces and enhance your life.

Learn more about Costa Farms

passionate about plants

Dahlia

Dahlia

Dahlia Plant Features

Available in an almost unlimited selection of shapes, sizes, and colors, dahlias are a must-have plant for your garden. These versatile annuals work well in a wide variety of situations, from border edges to pots and and planters. Dwarf types grow just 8 to 12 inches tall, while standard-sized dahlia varieties can produce dinner-plate sized flowers on 6-foot-tall plants. Flower colors include peach, red, lavender, white, yellow, orange, pink, and bi-color. Flower shapes vary from tiny pom poms to gigantic, corsage-worthy blooms. In frost-free regions, dahlias are tender perennials, but in most part of the country, dahlias are treated as annual bulbs that you can dig and save over the winter. Hardy from zones 7-11.

Dahlia Questions?
Email us and one of our dahlia experts will get back to you.

Dahlia Growing Instructions

Dahlias are sun worshippers. Plant them where they receive at least 6 to 8 hours of direct sunlight a day. They prefer a rich, slightly moist soil, but can tolerate drought if rainfall or irrigation is scarce. Tall dahlia varieties require staking to keep them from toppling during storms. Remove the flowers as they fade to encourage more bloom. Dahlia flowers are excellent for fresh bouquets.

Dahlia is not intended for human or animal consumption.

Special Care

In the North, dahlias can be dug and saved over the winter. After the first frost blackens the foliage, dig the plants and wash away all the excess soil from the tuberous roots. Also, clip away the foliage. Then, plunge the tubers into slightly moist peat moss or sawdust and store in a cool, dark place over the winter. Check the roots during the winter and if they show signs of shriveling, sprinkle them with a tiny bit of water.


  • Light

    Outside: Sun

  • Colors

    Orange, Pink, Purple, Red, Variegated, White, Yellow

  • Water

    Medium water needs

  • Special Features

    Super-easy to grow


Complement your Dahlia with these varieties:
Calibrachoa
Calibrachoa is a colorful, easy-care partner for dwarf Dahlia in a pot or planter.

Canna
Canna lily and standard-sized Dahlia make great partners in the back of the border. Plus, both can be dug and stored over the winter.

Dahlia
Small- and medium-sized Dahlia make colorful partners for their taller cousins, the standard-sized varieties.


Varieties: Our Favorites

Dahlia 'Dahlinova Dark Pink' Dahlinova Dark Pink

Dahlia 'Dahlinova Dark Pink'

Dahlinova Dark Pink shows off rich, double pink flowers all summer long. They excellent when cut for bouquets. It grows 24 inches tall and 16 inches wide.

Dahlia 'Labella Grande Fandango' Labella Grande Fandango

Dahlia 'Labella Grande Fandango'

Labella Grande Fandango is a showstopping dahlia with hot pink flowers on a compact plant that grows only 12 inches tall and wide.

Dahlia 'Labella Grande Orange Bicolor' Labella Grande Orange Bicolor

Dahlia 'Labella Grande Orange Bicolor'

Showing off big, soft orange flowers, this variety is perfectly sized for container gardens or the middle of the border at only 12 inches tall and wide.