Table of Contents
- Introduction
- Understanding What You Are Buying: Tubers vs. Bulbs
- Why the Source Matters for Your Garden Success
- Where to Buy Dahlias: Online vs. Local Nurseries
- How to Identify High-Quality Dahlia Tubers
- Popular Dahlia Varieties to Look For
- Timing Your Purchase: When Is the Best Time to Buy?
- What to Do When Your Dahlias Arrive
- Maximizing Your Investment: Getting the Most Blooms
- Common Shopping Questions Answered
- Where to Buy Dahlias for Specific Garden Goals
- Conclusion
- FAQ
Introduction
Choosing the perfect dahlias for your garden feels a bit like being a kid in a candy store. The sheer variety of colors, shapes, and sizes is enough to inspire any gardener, whether you are planning your very first flower bed or you have been growing for decades. If you are ready to shop, start with our dinnerplate dahlias. There is a special kind of excitement that comes with browsing through catalogs and imagining those massive, pillowy blooms gracing your backyard from midsummer all the way until the first frost.
When you are looking for where to buy dahlia bulbs, quality is the most important factor to consider. At Longfield Gardens, we know that a successful season starts with healthy, high-quality tubers. For a broader primer on how dahlias grow from those storage roots, see our Dahlia Tubers: What You Need to Know guide. In this guide, we will walk you through everything you need to know about sourcing the best plants for your home. We will cover how to identify top-tier stock, the benefits of shopping online versus locally, and which varieties are currently topping the must-have lists for American gardeners.
Finding a reliable source for your dahlia tubers is the essential first step toward a season filled with vibrant, breathtaking blooms and armloads of fresh-cut flowers.
Understanding What You Are Buying: Tubers vs. Bulbs
Before you start filling your cart, it is helpful to understand exactly what you are looking for. While many people use the term "dahlia bulbs" out of habit, dahlias actually grow from tubers. If you have ever seen a bunch of fingerling potatoes or a clump of skinny carrots, you already have a good idea of what a dahlia tuber looks like.
These tubers are essentially storage units for the plant. They hold all the energy and nutrients the dahlia needs to sprout and grow into a lush, flowering bush. When you are shopping, you might see them sold as individual tubers or as clumps. Both can produce beautiful results, provided the "eye" is present. The eye is the small bump or growing point, similar to the eye on a potato, where the new stem will eventually emerge.
Knowing this distinction helps you shop with confidence. When a retailer uses the term "bulbs," they are usually just using the common language of the gardening world to help people find what they need. However, the quality of that fleshy tuber is what really determines how well your garden will perform later in the summer.
Why the Source Matters for Your Garden Success
Where you choose to buy your dahlias can have a significant impact on the health and variety of your garden. While it is tempting to pick up the first bag you see at a local shop, taking a moment to consider the source can lead to much better results.
Consistency and Health
Professional growers and specialized retailers often have stricter quality controls in place. They work with experienced farmers—many in world-renowned bulb-growing regions like Holland—to ensure the tubers are harvested at the right time and stored in climate-controlled environments. This prevents the tubers from drying out too much or becoming moldy before they reach your door.
Variety Selection
If you shop at a general big-box store, you might only find a few standard colors like "red" or "yellow." However, when you look at specialized sources, the options expand into hundreds of named varieties. This allows you to choose specific flower forms, such as the spiky cactus dahlias, which add sophisticated texture to your landscape.
Accurate Labeling
There is nothing more confusing than planting what you thought was a white dinnerplate dahlia, only to have a small orange pompon bloom in its place. Established suppliers prioritize "true-to-variety" accuracy. This means when you buy a specific cultivar, like the famous Cafe Au Lait dinnerplate collection, you can be confident that is exactly what will bloom in your garden.
Where to Buy Dahlias: Online vs. Local Nurseries
Both online retailers and local garden centers have their place in a gardener's strategy. Depending on your goals for the season, you might find that one fits your needs better than the other.
The Benefits of Shopping Online
Online shopping has become the preferred method for many dahlia enthusiasts for several reasons:
- Wider Selection: You can browse hundreds of varieties from the comfort of your home, comparing colors and heights easily.
- Convenience: Your order is placed months in advance, and the tubers are delivered directly to your doorstep exactly when it is time to plant in your specific climate.
- Detailed Information: Online listings usually provide deep insights into the plant's expected height, flower size, and best uses (such as whether it is a great cut flower).
Shopping at Local Garden Centers
Local nurseries are great for last-minute additions to the garden. You get the immediate gratification of taking the plant home that day. However, selection is often limited to the most common commercial varieties, and the tubers may have been sitting in a warm store for several weeks, which can cause them to sprout prematurely or dry out.
Key Takeaway: For the best selection of unique colors and specialized forms, shopping online with a trusted supplier is usually the best way to ensure you get exactly the look you want for your garden.
How to Identify High-Quality Dahlia Tubers
When your order arrives, or if you are picking them out in person, you want to look for a few key indicators of health. A healthy tuber is the foundation of a healthy plant.
Look for Firmness
A good tuber should feel firm to the touch, much like a fresh potato. It should not feel mushy or hollow. While some minor wrinkling is normal—after all, they have been in storage—they should not look like shriveled raisins. If a tuber is slightly soft, it can often be revived with a little moisture once planted, but firm stock is always the ideal starting point.
Check the Neck
The "neck" is the narrow part of the tuber that connects the body to the crown (where the eyes are located). It is important that this neck is intact and not broken or severely bent. The neck acts as the pipeline for energy to reach the sprout.
Find the Eye
As mentioned earlier, the eye is the most critical part. You might not always see a sprout when you first buy your tubers, and that is okay. Sometimes the eyes are "blind" or dormant until they feel the warmth of the soil. However, if you see a tiny green nub or a small pinkish bump near the top of the tuber, you have a winner.
Size Isn't Everything
One common misconception is that a bigger tuber produces a bigger plant. This isn't necessarily true! Some of the most vigorous dahlia varieties produce relatively small, slender tubers, while others produce massive ones. As long as the tuber has a healthy eye and enough stored energy to get the first set of leaves into the sun, it will grow into a full-sized plant.
Popular Dahlia Varieties to Look For
When you are browsing where to buy dahlia bulbs, you will encounter several different categories. Each offers a different "personality" for your yard. Here are some of the most popular types we carry that consistently delight home gardeners.
Dinnerplate Dahlias
These are the superstars of the garden. They produce massive blooms that can reach 8 to 10 inches across—roughly the size of a dinner plate. They are perfect for creating a "wow" factor in the back of a border.
- Cafe Au Lait dinnerplate collection: Perhaps the most famous dahlia in the world, featuring creamy petals with hints of peach and soft pink.
- Thomas Edison: A reliable classic with deep, velvety purple blooms that stand out against green foliage.
- Kelvin Floodlight: Known for its enormous, bright yellow flowers that look like sunshine on a stem.
Decorative Dahlias
These have the classic "flower" shape with broad, flat petals. They come in every color imaginable and are very versatile in the landscape.
- Labyrinth: A stunning bi-color variety with shades of apricot, pink, and raspberry.
- Arabian Night: Features dark, sultry red petals that look almost black in certain light.
Ball and Pompon Dahlias
These varieties are favorites for cut flower arrangements because their petals are tightly spiraled into a perfect sphere. They are incredibly hardy and bloom prolifically.
- These ball dahlias are favorites for cut flower arrangements because their petals are tightly spiraled into a perfect sphere.
- Jowey Winnie: A lovely soft pink ball dahlia that is a staple for floral designers.
- Cornel: A bright red variety that holds its shape perfectly in a vase.
Cactus and Semi-Cactus Dahlias
If you like a more unique, textural look, cactus dahlias have narrow, pointed petals that curve outward, giving them a "spiky" appearance.
- Cactus dahlias are the best choice if you want a more unique, textural look.
- Cactus dahlias have narrow, pointed petals that curve outward, giving them a "spiky" appearance.
- Black Narcissus: A dramatic, dark burgundy variety that adds an edgy touch to any garden bed.
Timing Your Purchase: When Is the Best Time to Buy?
The "dahlia season" actually begins long before the first shovel hits the dirt. To get the best varieties, you have to think ahead.
The Winter Pre-Order
Most high-quality online retailers open their dahlia sales in late winter or very early spring (usually between January and March). Because some varieties are in high demand, the most popular ones—like the Cafe au Lait—can sell out quickly. Ordering early ensures that your favorites are reserved for you.
Shipping Based on Your Zone
Even if you buy your tubers in February, you won't receive them until the weather is safe for shipping. At Longfield Gardens, we time our shipments based on your USDA hardiness zone. We want to make sure your tubers don't sit on a cold delivery truck or a freezing porch. You will typically receive your order about two weeks before the ideal planting time for your specific area.
Late Season Bargains
By late May or June, some retailers may have remaining stock. While you can still plant dahlias as late as mid-June in most parts of the country, your selection will be much smaller. However, this is a great time to find "mixes" or value packs if you just want to add a splash of color without needing a specific named variety.
What to Do When Your Dahlias Arrive
Once you have decided where to buy dahlia bulbs and your package arrives, the way you handle them in those first few days is important. If you want a broader step-by-step checklist, see our How to Successfully Grow Dahlias guide.
- Open the Box Immediately: Your tubers need to breathe. Remove them from any outer shipping plastic or boxes right away.
- Inspect Your Stock: Check for those signs of quality we discussed: firmness, intact necks, and visible eyes.
- Store Them Cool and Dry: If it is still too cold to plant outside (the soil should be at least 60°F), keep your tubers in a cool, dark, and dry place. A basement or a garage that stays around 40-50°F is perfect. Avoid the temptation to put them in a warm room, as this might cause them to grow spindly white sprouts before they are in the ground.
- Wait for the Right Soil Temperature: It is very tempting to plant as soon as the sun comes out in spring. However, dahlias are tropical plants at heart. Planting them in cold, wet soil can lead to the tubers sitting dormant for too long. Wait until the threat of frost has passed and the soil feels warm to the touch—usually about the same time you would plant your tomatoes.
What to Do Next:
- Keep your tubers in their original breathable packaging until planting.
- Label your tubers if you take them out of the bag so you don't forget which color is which.
- Check the soil temperature in your garden bed with a simple thermometer.
- Prepare your planting site by ensuring it gets at least 6 hours of direct sunlight.
Maximizing Your Investment: Getting the Most Blooms
When you invest in high-quality tubers, you want to make sure you get the most "bang for your buck." Dahlias are generous plants; the more you interact with them, the more they give back.
The "Deep Water" Rule
Dahlias don't need much water when they are first planted. In fact, overwatering a tuber before it has sprouted can cause problems. Once the plant is about a foot tall and has several sets of leaves, you can start watering more regularly. Aim for deep, infrequent watering rather than a light sprinkle every day. This encourages the roots to grow deep into the soil.
Pinching for More Flowers
This is a simple trick that feels a bit scary the first time you do it, but it works wonders. When your dahlia plant is about 12 inches tall, snip off the very top of the center stem. This "pinching" tells the plant to stop growing one tall, lanky stalk and instead send out multiple side branches. More branches mean more flowers!
Deadheading is Essential
As your dahlias begin to bloom, you will eventually see some flowers start to fade. Snip these off as soon as they lose their luster. This process, called deadheading, prevents the plant from putting energy into making seeds. Instead, the plant will keep pumping out new flower buds all season long.
Common Shopping Questions Answered
Many gardeners feel a bit overwhelmed by the technical terms they see when shopping for dahlias. Let's simplify a few of them.
- "Top Size" or "Grade #1": This usually means the retailer has selected the largest and healthiest tubers from the harvest.
- "Clumps" vs. "Single Tubers": Some sellers sell a whole clump of tubers joined at the stem, while others sell a single tuber that has been carefully divided. Both are perfectly fine! A single tuber with a healthy eye will grow into a plant just as large as a clump will.
- "Pollinator Friendly": If you want to help the bees and butterflies, look for "Single," "Collarette," or "Peony-flowered" dahlias. These have open centers that make it easy for pollinators to reach the nectar. Doubled flowers like Dinnerplates are beautiful, but their many petals make it harder for bees to get inside.
Where to Buy Dahlias for Specific Garden Goals
Depending on what you want to achieve, your shopping list might look a little different.
For the Cutting Garden
If your goal is to have fresh bouquets in every room of your house, look for varieties described as having "strong stems" and "long vase life." Ball dahlias and Decorative types in the 3- to 4-foot height range are usually the best performers for cutting.
For Small Spaces and Containers
You don't need a huge backyard to enjoy dahlias. Look for border dahlias or gallery dahlias. These are specially bred to stay compact—usually under 2 feet tall. They are perfect for pots on a patio or for the very front edge of a flower bed.
For High-Impact Landscapes
If you want your garden to be the talk of the neighborhood, focus on the "Dinnerplate" and "Giant" categories. Planting these in groups of three of the same variety creates a massive wall of color that is hard to miss.
Conclusion
Finding the right place to buy dahlia bulbs is the first step in a very rewarding journey. Whether you choose the massive, ruffled petals of a dinnerplate variety or the tidy, geometric perfection of a ball dahlia, starting with high-quality stock is the key. By shopping with a reputable supplier like Longfield Gardens, you are ensuring that you receive healthy, true-to-name tubers that are ready to transform your yard into a summer paradise.
Remember, gardening is meant to be a joyful experience. Don't worry about knowing every technical detail right away. As long as you provide your dahlias with plenty of sun, well-draining soil, and a little bit of patience, they will reward you with a spectacular show that lasts for months.
Final Tips for Success:
- Order early to secure the most popular and unique varieties.
- Always check for a firm tuber and a healthy "eye" before planting.
- Wait for warm soil to give your dahlias the best possible start.
- Enjoy the process of watching a humble tuber turn into a floral masterpiece.
- Choose a supplier that backs every order with a 100% Quality Guarantee.
We are here to help you every step of the way, from choosing your first variety to harvesting your final bouquet of the season. Happy shopping and happy planting!
FAQ
When is the best time to order dahlia tubers?
The best time to order is during the winter and early spring, typically between January and March. Many specialized retailers open their pre-orders during this time, allowing you to reserve the most popular varieties before they sell out. Your order will then be shipped to you later in the spring when it is safe to plant in your local area.
How do I know if a dahlia tuber is good quality?
A high-quality tuber should feel firm, similar to a fresh potato, and should not be mushy or completely shriveled. Look for an intact "neck" (the area between the tuber and the stem) and at least one visible "eye" or growth point. Don't worry if the tuber is small; size does not necessarily dictate how large or healthy the final plant will be.
Is it better to buy dahlias online or at a local store?
Online retailers typically offer a much wider selection of unique colors and specialized flower forms, such as dinnerplate or cactus dahlias. They also manage storage in climate-controlled environments until it is time to ship. Local stores are convenient for last-minute purchases, but their selection is usually limited to a few common varieties, and the tubers may dry out more quickly on store shelves.
Can I buy dahlias that are already growing in pots?
Yes, many local nurseries sell "potted dahlias" in the late spring and summer. These are great if you want instant color or missed the window for planting tubers. However, buying tubers in the spring is generally more cost-effective and gives you access to a much larger variety of colors and shapes than what is typically available in pre-started pots.
