Table of Contents
- Introduction
- Understanding Dahlia Bulbs and Tubers
- Where Can I Buy Dahlia Bulbs Online?
- Buying Dahlias at Local Garden Centers
- How to Choose the Right Dahlia Varieties
- What to Look for in a Quality Tuber
- Timing Your Purchase and Planting
- Getting the Best Value for Your Money
- Preparing Your Garden for Dahlias
- Caring for Your Dahlias After Purchase
- Common Varieties Found at Longfield Gardens
- Conclusion
- FAQ
Introduction
There is nothing quite like the first time a dinnerplate dahlia opens in your garden. These magnificent blooms, which can grow as large as a dinner plate, represent one of the most rewarding moments for any home gardener. Whether you are looking for the soft, peachy tones of a 'Cafe au Lait' or the vibrant purple of 'Thomas Edison,' dahlias provide a spectacular show of color from midsummer all the way until the first frost. At Longfield Gardens, we know that the journey to a beautiful summer garden starts with finding the very best plants for your space.
If you have been wondering where can i buy dahlia bulbs, this guide will help you navigate the process of selecting and purchasing high-quality dahlia tubers. We will cover the differences between buying online versus at local stores, what to look for in a healthy tuber, and how to choose the right varieties for your specific garden goals. Whether you are a beginner or a seasoned grower, finding a reliable source is the first step toward a successful season of blooms.
This article is designed for home gardeners in the United States who want to fill their yards with color. We will focus on practical advice for sourcing plants that arrive in prime condition and are ready to thrive. By the end of this guide, you will feel confident in choosing where to shop and which varieties will work best for your landscape.
Selecting the right source for your dahlias ensures that you receive healthy, true-to-name tubers that are ready to burst into growth as soon as the weather warms.
Understanding Dahlia Bulbs and Tubers
Before you start shopping, it is helpful to clarify a bit of gardening terminology. While many people search for "dahlia bulbs," these plants actually grow from tubers. A tuber is a thickened, underground part of a stem or rhizome that stores energy for the plant. They often look a bit like a bunch of small potatoes or carrots joined at a central point called the "clump."
When you buy dahlias from a reputable source, you are usually purchasing individual tubers or small clumps that have been carefully divided. Each tuber must have a portion of the "crown" or "neck" and at least one "eye" to grow. The eye is a small bump, similar to the eye on a potato, where the new sprout will emerge.
We offer a wide selection of these tubers because they are the most reliable way to grow specific, named varieties. Unlike growing from seed, which can result in flowers that look different from the parent plant, tubers are clones. This means if you buy a specific variety like Kelvin Floodlight, you know exactly what the color, shape, and size of the flower will be.
Where Can I Buy Dahlia Bulbs Online?
Buying dahlia tubers online is often the preferred choice for gardeners who want the greatest variety. When you shop online, you aren't limited to the few options available at a local big-box store. Instead, you can browse hundreds of different shapes, sizes, and colors to find the perfect match for your garden's color palette.
Benefits of Shopping Online
Shopping online allows you to plan your garden well in advance. Most online retailers, including our team, begin taking pre-orders in the winter or early spring. This ensures you get first pick of the most popular varieties before they sell out. Since dahlias have surged in popularity recently, some of the most sought-after types can go quickly.
Another advantage is the wealth of information available at your fingertips. Online listings usually include detailed descriptions of the plant's height, flower size, and bloom style. This information is vital for "right plant, right place" gardening. You can easily see if a variety needs staking or if it is compact enough for a patio container.
Quality and Shipping
When you order from a specialized online source, the tubers are typically kept in climate-controlled storage until it is time to ship. We time our shipments based on your USDA hardiness zone. This means your dahlias arrive approximately two weeks before the ideal planting time in your area. This prevents the tubers from sitting in a warm store shelf for weeks, which can cause them to dry out or sprout prematurely.
What to do next:
- Identify the "eyes" on your tubers when they arrive; these are the growth points.
- Keep tubers in a cool, dark place if you cannot plant them immediately.
- Check that each tuber feels firm and heavy for its size.
Buying Dahlias at Local Garden Centers
Local garden centers and big-box stores are another common place to find dahlia bulbs. This can be a convenient option if you decide to add dahlias to your garden on a whim during the spring planting rush. You can see the product in person and take it home the same day.
What to Expect Locally
Local stores often carry "mixes" or a few very common varieties. While these are often beautiful, the selection is much narrower than what you find online. You might find a generic "Red Decorative Dahlia" rather than a specific named cultivar like Spartacus. If you are looking for a very specific look or a rare variety, local shops may not have what you need.
Inspecting Local Stock
If you buy locally, it is important to inspect the packaging carefully. Tubers sold in retail stores are often packed in plastic bags with peat moss or wood shavings. Feel the bag to ensure the tubers inside feel firm. If the tubers feel soft, mushy, or completely brittle and dry, they may not grow well. Look for any signs of mold or excessive sprouting. A small sprout is fine, but a long, pale, weak stem indicates the tuber has been in the bag too long in a warm environment.
How to Choose the Right Dahlia Varieties
With thousands of varieties available, the most exciting part of shopping is choosing the flowers. Dahlias are classified by their shape and size. Understanding these categories will help you decide which ones to buy for your specific needs.
Dinnerplate Dahlias
These are the giants of the dahlia world. The flowers can reach 8 to 10 inches (or more) in diameter. Because the blooms are so heavy, these plants usually grow 3 to 5 feet tall and require sturdy staking. They are perfect for the back of a flower border or as a dramatic focal point. Popular varieties include Break Out and Inca.
Decorative Dahlias
This is the largest category and includes varieties with broad, flat-tipped petals. They come in every color imaginable and range from medium to large bloom sizes. They are versatile and work well in almost any garden setting.
Ball and Pompon Dahlias
These varieties produce perfectly round, honeycomb-shaped flowers. Ball dahlias are slightly larger than pompons. They are incredibly tough and are among the best for cut flower arrangements because they have a very long vase life. Jowey Winnie is a famous example of a beautiful ball dahlia.
Cactus and Semi-Cactus Dahlias
If you like a more unique look, semi-cactus dahlias feature narrow, pointed petals that curve outward. They have a spiky, starburst appearance that adds wonderful texture to the garden. They are often very prolific bloomers.
Border and Mignon Dahlias
Not everyone has room for a 5-foot plant. Border dahlias stay short, usually under 18 to 24 inches. They are excellent for the front of a flower bed or for growing in pots. They produce many small flowers and generally do not require staking.
Key Takeaway: Choose your dahlia based on its height and bloom style to ensure it fits the space you have available. Smaller varieties are great for pots, while tall dinnerplates need room to grow and extra support.
What to Look for in a Quality Tuber
No matter where you choose to buy your dahlia bulbs, quality is the most important factor for success. A healthy tuber contains all the energy the plant needs to send up its first shoots and establish a root system.
Firmness and Texture
A good tuber should feel firm, similar to a fresh potato. It is normal for them to have a few wrinkles, but they should not be shriveled or leather-like. Avoid tubers that feel "squishy," as this is a sign of rot.
The Crown and the Eye
The "neck" of the tuber connects the body to the crown. It is important that this neck is intact and not broken. The eye, which is the growth point, is located on the crown. At the beginning of the season, eyes can be very small and hard to see. They look like tiny, rounded bumps or "pimples." As the weather warms, these eyes will begin to swell and may turn pink or green.
Size Doesn't Always Matter
One common misconception is that a bigger tuber produces a bigger flower. This is not necessarily true. Some varieties naturally produce small, thin tubers, while others produce large, chunky ones. As long as the tuber is firm and has a healthy eye, it will grow into a full-sized plant.
Timing Your Purchase and Planting
Timing is everything when it comes to dahlias. These are tropical plants native to Mexico and Central America, which means they love the heat and cannot tolerate frost.
When to Buy
The best time to buy is late winter through early spring. By shopping early, you ensure that you get the varieties you want. If you wait until May or June to look for where can i buy dahlia bulbs, many of the most popular colors and shapes may already be sold out for the season.
Shipping and Arrival
When you order from us, we keep your tubers in a temperature-controlled environment until your area is ready for planting. We use USDA Hardiness Zones to determine the best shipping window. If your tubers arrive and your soil is still too cold or wet to plant, you can keep them in their shipping container in a cool (40–50°F), dark, dry place like a basement or garage.
When to Plant
Dahlias should be planted in the spring once the danger of frost has passed. For a step-by-step refresher, see How to Plant Dahlias. A good rule of thumb is to plant your dahlias at the same time you would plant tomatoes or peppers. Planting too early in cold, wet soil can cause the tubers to rot before they have a chance to grow.
What to do next:
- Check your local "last frost date" before planting.
- Wait for the soil to feel warm to the touch before putting tubers in the ground.
- Prepare your planting site with plenty of sun and well-draining soil.
Getting the Best Value for Your Money
When considering where can i buy dahlia bulbs, price is often a factor. You will find a range of prices, from inexpensive bulk bags to higher-priced individual tubers for rare varieties.
Wholesale vs. Retail
Buying in larger quantities, or "wholesale," is a great way to save money if you are planting a large area or a cutting garden. We offer various pack sizes to help you get the look you want at a price that fits your budget. Mixed packs are an excellent way to get a variety of colors for a lower per-tuber price.
The Longfield Gardens Guarantee
We stand behind the quality of our plants with a 100% quality guarantee. This means we ensure the items are true to variety and arrive in prime condition. If there is a damage or quality issue upon delivery, or if the plant fails to perform in its first growing season, we work with you to provide a replacement, store credit, or refund. This peace of mind is one of the biggest benefits of buying from a trusted, established source.
Preparing Your Garden for Dahlias
Once you have decided where to buy your bulbs and placed your order, it is time to prepare their new home. Getting the basics right will ensure your dahlias thrive from day one.
Sun and Soil
Dahlias are sun-lovers. They need at least 6 to 8 hours of direct sunlight every day to produce strong stems and plenty of flowers. If they are planted in too much shade, they will become "leggy" as they stretch toward the light, and they won't bloom as well.
Soil drainage is the other critical factor. "Drainage" simply means how fast water leaves the soil. Dahlias do not like to have "wet feet." If your soil stays soggy after a rain, the tubers may rot. You can improve drainage by adding compost or organic matter to your garden beds, or you can plant your dahlias in raised beds or containers.
Space to Breathe
It is tempting to plant your dahlias close together for a full look, but they need room for air to circulate. This helps prevent diseases like powdery mildew. Most medium and large dahlias should be spaced about 18 to 24 inches apart. Smaller border varieties can be planted closer, around 12 inches apart.
Simple Planting Steps
- Dig a hole: Make it about 4 to 6 inches deep.
- Amend the soil: If your soil is heavy clay, mix in a little compost.
- Place the tuber: Lay it horizontally in the hole with the "eye" or sprout facing up.
- Cover with soil: Fill the hole back in. Do not water heavily until you see the first green shoots poking through the soil, as the tuber doesn't have roots yet to drink the water.
Key Takeaway: Successful dahlias start with a sunny, well-drained spot and enough space to grow. Wait for the soil to warm up before planting to give your tubers the best start.
Caring for Your Dahlias After Purchase
Your job isn't finished once the tubers are in the ground. A little bit of ongoing care will ensure your dahlias stay healthy and bloom all summer long.
Watering Correctly
Once the plants are about 6 inches tall and have established a root system, they will need regular water. Instead of watering a little bit every day, it is better to water deeply once or twice a week. This encourages the roots to grow deep into the soil. If you are growing dahlias in containers, they will dry out faster and may need more frequent watering.
Supporting Tall Plants
If you bought tall varieties like dinnerplate or decorative dahlias, you will need to provide support. It is best to put your stakes in the ground at the same time you plant the tuber. This prevents you from accidentally poking a hole through the tuber later in the season. You can use wooden stakes, bamboo, or even tomato cages to keep the heavy blooms from flopping over in the wind. For more help, see How to Pinch and Stake Dahlias.
The Magic of Deadheading
To keep your dahlias blooming until frost, you should practice "deadheading." This simply means cutting off the flowers after they have started to fade. When you remove the old flowers, the plant puts its energy into making new buds rather than producing seeds. The more you cut dahlias, the more they bloom!
Common Varieties Found at Longfield Gardens
When you are looking for where can i buy dahlia bulbs, it helps to know which varieties are proven performers. We take pride in our trial garden where we evaluate plants to ensure they grow well in American gardens. Here are a few favorites you might consider:
- Cafe au Lait dinnerplate dahlias: The "Queen" of dahlias, famous for its creamy, blush-pink petals. It is a must-have for wedding bouquets and elegant gardens.
- Thomas Edison: A classic decorative dahlia with deep, royal purple blooms. It is known for being a very reliable and prolific grower.
- Kelvin Floodlight: An award-winning dinnerplate variety that produces massive, sunshine-yellow flowers.
- Blue Boy: A lovely decorative dahlia with a unique lavender-blue shade that stands out in a sea of reds and yellows.
- Labyrinth: A stunning variety with wavy petals in a mix of apricot, pink, and raspberry tones.
By choosing these established varieties, you increase your chances of a spectacular display that will have your neighbors stopping to take pictures.
Conclusion
Finding the right place to buy dahlia bulbs is the first step in a rewarding gardening journey. Whether you choose to shop online for the widest variety or pick up a few favorites at a local center, focusing on quality tubers is the key to success. Remember that dahlias are generous plants—the more sun, space, and attention you give them, the more beautiful flowers they will provide in return.
At Longfield Gardens, we are dedicated to helping you create a more beautiful yard with premium bulbs and perennials. We stand behind our quality so you can plant with confidence and enjoy the magic of summer blooms.
- Shop early in the season for the best selection of colors and shapes.
- Look for firm tubers with an intact "eye" for guaranteed growth.
- Wait for warm soil and sunny days to start your planting.
- Enjoy the process of watching a humble tuber transform into a garden masterpiece.
Ready to start your summer garden? Explore our dahlia collection and find the perfect varieties to bring your landscape to life this season.
FAQ
When is the best time to buy dahlia bulbs?
The best time to buy is during late winter and early spring (January through March). Shopping during this window ensures you have access to the widest selection of varieties before they sell out. Most online retailers will take your order early and ship the tubers to you exactly when it is time to plant in your specific climate.
How do I know if the dahlia tubers I bought are healthy?
Healthy dahlia tubers should feel firm and heavy, much like a fresh potato. It is okay if they have a few small wrinkles, but they should not feel mushy, hollow, or brittle. Look for the "eye" on the crown of the tuber; this is a small bump that indicates where the new growth will emerge.
Can I buy dahlia bulbs in the fall?
Dahlia tubers are usually not available for purchase in the fall because they are frost-tender and cannot be planted until the spring. Most growers harvest their tubers in the autumn and keep them in specialized cold storage over the winter. For storage steps, see How to Lift and Store Dahlia Bulbs. This ensures they stay dormant and healthy until they are shipped to gardeners for spring planting.
Is it better to buy dahlias online or at a store?
Buying online generally offers a much larger selection of specific colors, sizes, and flower shapes. Online retailers also tend to store tubers in more controlled environments, which can result in better quality. Local stores are convenient for last-minute purchases, but the selection is often limited to generic mixes or a few common varieties.