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POSTPONED: Growing Dahlias: Short Course (was April 20)

  • Treehouse Farm Collective 8104 North 63rd Street Longmont, CO, 80503 United States (map)

Dahlias are the queens of the summer garden: so productive, so many different forms, so much delight! Learn what they need to do their best.


How to Grow Dahlias in Colorado | April 18th
from $75.00

April 18 & November 7, 2026
10am-1pm

$75 “Just Me” or $125 “Plus One” (Two Guests).

Dahlias are the queens of the summer garden: so productive, so many different forms, so much delight! Learn what they need to do their best in our climate.

Here’s what you’ll learn:

  1. How to source the best dahlia tubers, and how to tell if they are viable

  2. A brief introduction to taking cuttings

  3. Preparing your garden beds for planting

  4. Spacing, depth, pinching, fertilizing, support, and watering for healthy, productive plants

  5. Strategies for pests and disease

  6. Harvesting and caring for cut dahlias.

Here’s what you’ll take home:

  • Materials and resources lists

  • A PDF summary of our class

  • Five of our farm-grown tubers for your garden!

Bundle: Save 10% when you sign up for both workshops, either on your own or with a friend.

  1. Growing Dahlias in Colorado

  2. Digging, Dividing, & Storing Dahlia Tubers in Colorado

An armload of dahlia ‘Cafe Au Lait’.

Here’s what you’ll learn:

  1. How to source the best dahlia tubers, and how to tell if they are viable

  2. A brief introduction to taking cuttings

  3. Preparing your garden beds for planting

  4. Spacing, depth, pinching, fertilizing, support, and watering for healthy, productive plants

  5. Strategies for pests and disease

  6. Harvesting and caring for cut dahlias.

Here’s what you’ll take home:

  • Materials and resources lists

  • A PDF summary of our class

  • Five of our farm-grown tubers for your garden!


$65 per person, or $100 for two. Coffee and a light snack included.


COVID SAFETY

We will be inside a well-ventilated room, or outdoors, but if you are concerned about spreading the virus, please contact me to work out protocols that will make you comfortable. I am fully vaccinated.


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