Dahlia Cuttings Course:

From Tuber to Bloom

A free, 6-week course to help you multiply your dahlias, no experience necessary.

Turn One Tuber into Dozens of Blooms. Learn how to propagate dahlias using simple, step-by-step methods taught by a flower farmer in the Hudson Valley.

What You’ll Learn

Choose and prep healthy dahlia tubers

Create the ideal indoor grow setup

Take strong, healthy cuttings

Root them successfully, no greenhouse required

Transplant and care for them until they bloom

ENROLL FOR FREE

How the Course Works

6 Weekly Emails with Short Videos

Easy-to-Follow Lessons for Beginners & Hobby Growers

Downloadable Guides and Worksheets

Bonus Q&A Opportunities on Instagram

Six clusters of tamarind pods with white tags, each labeled with different names or words. The tags read 'Carmel', 'Jonanda', 'Labyrinth', 'Breakout', 'Coffee Latte', 'Yellow Jill', and 'Karma Choc'. The clusters are arranged on a dark wooden surface.

Rooting Your Cuttings

How to prepare cutting trays or soil blocks

Water vs. soil vs. perlite methods of rooting

Humidity domes and misting schedules

Rooting hormones: yes or no?

Bonus: Rooting Methods Comparison Chart

Care, Pinching, and Planning for Blooms

How to pinch for bushy growth

Watering, fertilizing, and staking cuttings

Protecting young plants from pests

Planning your garden layout with propagated plants

Bonus: Pinching & Care Guide + Bloom Planner

Choosing Tubers & Potting Them Up

What are dahlia cuttings vs. growing from tubers?

Anatomy of a dahlia tuber (eye, neck, crown, storage root)

How to select healthy tubers for cuttings

Potting up tubers indoors to “wake them up”

Bonus: Tuber Selection & Anatomy Cheat Sheet

A rustic wooden table with gardening tools, small terracotta pots filled with soil, and potted plants near a window with sunlight streaming in.

Creating the Perfect Growing Environment

Light, temperature, and humidity needs for sprouting

Best potting mix for sprouting vs. rooting

Using heat mats and grow lights effectively

How to prevent rot and mold

Bonus: Indoor Grow Setup Checklist

A person is planting or tending young green seedlings in small terracotta pots on a wooden table near a window, with gardening tools and supplies nearby.

Taking Cuttings (Timing + Technique)

When is a tuber ready to take cuttings?

Tools and sterilization tips

How to take a clean, healthy cutting

Multiple shoots from one tuber: how often you can cut

Bonus: Step-by-Step Cuttings Guide

Seedlings sprouting in a wooden tray on a windowsill with sunlight, next to a potted plant in a decorative pot.
Person planting seedlings in biodegradable containers on a wooden surface.

Transplanting & Hardening Off

How to tell when a cutting is ready for transplant

Potting up into 4-inch pots or directly into the garden

Hardening off: What it means and how to do it

Troubleshooting weak or leggy plants

Bonus: Transplant Timing Tracker

Five dahlias in shades of pink, red, and peach arranged on a textured pink background.
ENROLL FOR FREE

Enroll For Free Today

Enroll For Free Today

chantal holding flowers.


Meet your Instructor

I’m Chantal, founder of Lagrange Rouge, a small flower farm in the Hudson Valley. I love growing things slowly, beautifully, and sustainably. This course was born from my obsession with dahlias, and how addicting it is to multiply them from just one tuber.

Frequently asked questions

  • What is a dahlia cutting and why should I grow them this way?

    A dahlia cutting is a shoot taken from a tuber that can be rooted to grow a brand-new plant. This propagation method lets you multiply your dahlias quickly and grow more blooms from a single tuber, perfect for gardeners who want a big impact without buying dozens of plants.

  • This course is designed for beginner and intermediate gardeners, home growers, and flower lovers who want to learn how to propagate dahlias from cuttings. No greenhouse or fancy equipment needed, just a little curiosity and some natural light.

  • Each week, you'll get a new video tutorial delivered to your inbox, covering topics like:

    • Choosing healthy dahlia tubers

    • How to pot them up indoors

    • Creating the ideal environment for growth

    • Taking and rooting cuttings

    • Transplanting and caring for your young plants

    • Tips to grow strong, bloom-ready dahlias

  • Absolutely. You can submit questions via Instagram (@lagrangerougefarm) or reply to our weekly emails. We’ll do our best to answer them during the course or in bonus content.

  • Yes! The entire 6-week course is 100% free. It’s part of Lagrange Rouge’s mission to help more people grow beauty and abundance, right from home. All we ask is that you sign up with your email so we can send the weekly lessons directly to you.

  • The first video drops Friday April 18. As long as you’re signed up, you’ll receive a welcome email with everything you need to get started.

  • You’ll need:

    • A few healthy dahlia tubers

    • Small pots or trays

    • Potting mix

    • A warm, sunny spot or grow light

    • Scissors or pruners

    • Water and labels

    We’ll share a full supply list in your first email.

  • Nope! This course is made for home growers working from a sunny windowsill, a basement grow shelf, or a small shed setup. We’ll teach you how to make the most of what you have.