Table of Contents
- Introduction
- Understanding the Dahlia Buying Calendar
- The Early Winter Rush: January and February
- Mid-Spring Options: March and April
- Late Season Finds: May and June
- Why Some Varieties Sell Out So Fast
- How Shipping Dates Are Determined
- Identifying High-Quality Tubers
- Planning Your Space Before You Buy
- The Benefits of Buying from Reputable Sources
- How to Store Tubers if They Arrive Early
- Matching Varieties to Your Gardening Style
- Planting for Success Once Your Tubers Arrive
- Simple Troubleshooting for New Buyers
- Why We Love Dahlias
- Conclusion
- FAQ
Introduction
Dreaming of a garden filled with vibrant dinnerplate dahlias is one of the great joys of the winter season. These spectacular flowers offer an incredible range of colors and shapes that can transform any backyard into a floral paradise. At Longfield Gardens, we know that the excitement of planning your summer garden often begins while the ground is still frozen.
This guide is designed for home gardeners who want to ensure they get the best selection and the highest quality plants for the upcoming season. We will cover the ideal months to place your order, why certain varieties disappear quickly, and how shipping schedules work to protect your plants. Understanding the timing of the dahlia market helps you move from dreaming to planting with confidence.
Getting your timing right is the first step toward a successful and colorful summer harvest.
Understanding the Dahlia Buying Calendar
The world of dahlias operates on a specific seasonal rhythm. Unlike some perennials that you can find at a garden center all summer long, dahlia tubers are mostly sold during a specific window. Because they are tender tubers that cannot survive freezing temperatures, the industry revolves around winter dormancy and spring planting.
Most experienced gardeners start looking for tubers in the late fall and early winter. This is when the previous season's harvest has been tucked away and inventory is officially counted. While you won't be planting for several months, the window to secure your favorite colors is much earlier than you might expect.
The general rule for dahlia shopping is that the earlier you look, the more choices you have. By the time the weather is warm enough to plant in May or June, many of the most popular and unique varieties have already been claimed.
The Early Winter Rush: January and February
If you want the widest possible selection, January and February are the best months to buy dahlia tubers. This is the peak "pre-order" season. During these months, we list our full inventory for the coming year.
Many gardeners are surprised to learn that dahlia enthusiasts often treat these months like a major shopping event.
Certain high-demand varieties, such as the famous Cafe au Lait, are in such high demand that they can sell out shortly after they are listed.
The striking Labyrinth is another high-demand variety.
Buying in early winter provides several benefits:
- You get first pick of rare and trendy varieties.
- You can plan your garden color palette with precision.
- You have peace of mind knowing your favorites are reserved for you.
When you buy during this time, you are essentially placing a reservation. We keep the tubers safe and dormant in our climate-controlled facility until it is the correct time to ship them to your specific area.
Mid-Spring Options: March and April
As the calendar turns to March and April, the focus shifts from "securing the rare gems" to "preparing for planting." This is still a great time to buy dahlia tubers, especially if you are looking for classic, reliable performers that produce massive amounts of flowers for cutting.
During mid-spring, the selection may be slightly smaller than in January, but there are still plenty of beautiful options available. This is a perfect time for gardeners who may have started their planning a bit later or those who decided to add another flower bed to their landscape.
Buying in March or April means your tubers will arrive relatively soon after you order. Since the weather is beginning to warm up across most of the United States, the shipping window is wide open. You won't have to wait as long between clicking "buy" and seeing that package on your doorstep.
Late Season Finds: May and June
By May and June, dahlia season is in full swing. In many parts of the country, it is already time to get tubers into the ground. While the selection is at its most limited during this time, you can still find excellent tubers to fill gaps in your garden.
Dahlias are fast-growing plants. Even if you plant them in early June, you will still enjoy a massive display of flowers from August until the first frost of autumn. If you find yourself with an empty pot or a bare spot in a border in late spring, don't hesitate to check for remaining stock.
Key Takeaway: For the best selection, shop in January or February. For immediate planting, shop in April or May.
Why Some Varieties Sell Out So Fast
It can be a little startling to see a "Sold Out" sign on a plant in February when there is still snow on the ground. The reason for this is the massive rise in popularity of flower gardening and home cutting gardens.
Varieties that have gone viral on social media or those that are favorites for wedding bouquets are always the first to go. 'Dinnerplate' dahlias, which produce blooms the size of a frisbee, are particularly popular. Because a single dahlia tuber only produces a certain number of "daughter" tubers each year, the supply of these special varieties is naturally limited.
If you have your heart set on a specific look—perhaps a moody dark purple like Thomas Edison or a soft blush pink—we recommend visiting our site early in the winter. This ensures you aren't left settling for a second choice.
How Shipping Dates Are Determined
One of the most important things to understand when buying dahlia tubers is that the purchase date is not the shipping date. Because dahlias are sensitive to cold, they cannot be shipped when there is a high risk of the package freezing during transit.
We use your USDA hardiness zone to determine the safest time to send your order. Our goal is to have your tubers arrive about two weeks before the ideal planting time in your area. This usually falls between March and May, depending on where you live.
Here is what happens after you click "order" in January:
- Your tubers are reserved in our inventory.
- They stay in a temperature-controlled environment in our Lakewood, New Jersey facility.
- As spring approaches, we monitor weather patterns across the country.
- When your region is safe from deep freezes, we pack and ship your order via UPS or FedEx.
This system protects your investment. Shipping too early could result in a frozen, mushy tuber that won't grow. Shipping at the right time ensures the plant arrives healthy and ready to sprout.
Identifying High-Quality Tubers
Whenever you decide to buy, the most important factor is the quality of the tuber. A good dahlia tuber should feel firm and heavy for its size, much like a fresh potato. It should not feel hollow, shriveled, or mushy.
At Longfield Gardens, we work with trusted growers to ensure every tuber we ship is healthy and true to its variety. Every tuber must have three things to be successful:
- The Body: This is the storage tank for energy. It should be plump.
- The Neck: This connects the body to the crown. It must be intact and not broken.
- The Eye: This is the small bud where the new growth will emerge.
Sometimes the "eye" is very hard to see when the tuber is dormant. It might look like a tiny, pale bump. For a closer look at tuber anatomy, read Dahlia Tubers: What You Need to Know.
Planning Your Space Before You Buy
Before you fill your online cart, it is helpful to take a quick look at your garden. Dahlias are not shy plants; they need space and resources to produce those famous blooms. Knowing your space will help you decide how many tubers to buy and which types will work best.
Sunlight Requirements
Dahlias need a lot of energy to create flowers. This means they require at least six to eight hours of direct sunlight every day. If you have a shady backyard, you might want to focus your dahlia planting in pots on a sunny patio.
Soil and Drainage
"Drainage" is a word gardeners use to describe how fast water leaves the soil. Dahlias love water, but they hate sitting in a puddle. If your soil stays soggy for a long time after a rain, the tubers can rot. Before buying, check if you have a spot with loose, crumbly soil. If your soil is heavy clay, consider planting in raised beds or large containers.
Spacing Needs
Most standard dahlias need about 18 to 24 inches of space between each plant. If you are buying the tall, heavy-headed dinnerplate varieties, remember that they will also need stakes for support. Knowing your garden's square footage prevents you from buying more than you can comfortably plant.
The Benefits of Buying from Reputable Sources
While it can be tempting to pick up a bargain bag of tubers from a big-box store, there are significant advantages to buying from a specialist. Mass-market tubers are often handled roughly by machines and stored in environments that are too hot or too dry. This often leads to "blind" tubers that have no eye and will never grow.
When you order from us, you are getting tubers that have been handled with care and stored in optimal conditions. We also stand behind our plants with a 100% quality guarantee. If your tubers arrive damaged or if there is a labeling error, we make it right. This peace of mind is worth the investment, especially when you are looking forward to a specific color or style in your garden.
What to do next:
- Check your USDA zone to find your expected shipping window.
- Measure your sunny garden spots to see how many plants will fit.
- Make a "must-have" list of colors and flower shapes.
- Visit our website in January to secure your top picks.
How to Store Tubers if They Arrive Early
Sometimes, a warm spell in spring might trigger an earlier shipping date, or you might live in a region where the ground takes a little longer to warm up. If your tubers arrive before you are ready to plant, you just need to keep them in a holding pattern.
The best way to store tubers for a few weeks is to keep them in a cool, dark, and dry place. A basement or a cool closet is usually perfect. Keep them in the packing material they arrived in, such as wood shavings or vermiculite. This material helps regulate moisture so the tubers don't dry out too much or get moldy.
Do not put them in the freezer, and try to keep them away from drafts. As long as they stay dormant and dry, they will be perfectly fine waiting for a week or two until the soil temperature reaches about 60°F.
Matching Varieties to Your Gardening Style
When you are deciding when to buy, consider what you want to do with your dahlias. Different varieties serve different purposes in the garden, and some are more "in demand" than others.
The Cutting Garden
If you want to bring bouquets into your house every week, look for Ball dahlias. These have smaller, sturdy flowers that last a long time in a vase.
If you want something similarly bouquet-friendly, look for Pompon dahlias. These are often available well into the spring.
The Statement Garden
If you want to stop traffic and impress the neighbors, you want "Dinnerplate" dahlias. These are the giants of the garden. Because these are the most famous, they are the ones you should buy as early as possible in the winter.
The Container Garden
If you only have a balcony or a small patio, look for "Border" or "Dwarf" dahlias. Our What Size Pot to Grow Dahlias? guide can help you choose the right container.
Planting for Success Once Your Tubers Arrive
Once the best time to buy has passed and your tubers have arrived, the focus turns to planting. Success with dahlias comes down to a few simple steps. You don't need a green thumb to get great results; you just need to follow the basic needs of the plant.
Wait until the danger of frost has passed completely. A good indicator is when you are ready to plant your tomatoes. If the ground is still cold and wet, the tuber will just sit there and potentially rot. Waiting for warm soil is the "quiet winner" of dahlia gardening.
Dig a hole about 4 to 6 inches deep. Lay the tuber on its side with the eye (the little sprout) facing up. Cover it with soil, but do not water it yet! This is a common mistake. The tuber has all the moisture it needs to start growing. Wait until you see the first green sprouts poking through the soil before you start your regular watering routine.
Simple Troubleshooting for New Buyers
If you bought your tubers at the right time but are worried about their progress, remember that dahlias require a little patience. They are like "sleepyheads" in the spring. It can take two to three weeks (or even longer in cool weather) for the first sprout to appear above the ground.
If a month goes by and you see nothing, check these three things:
- Soil Temperature: Was the ground too cold?
- Water: Did the soil get too soggy before the plant started growing?
- Depth: Is the tuber buried too deep?
Most of the time, the answer is simply that the plant is waiting for more sun and warmth. Once the heat of July hits, dahlias usually take off and grow with incredible speed.
Why We Love Dahlias
At Longfield Gardens, we believe dahlias are one of the most rewarding plants you can put in your yard. There is something almost magical about a small, brown tuber turning into a five-foot-tall bush covered in intricate, glowing flowers. They provide color at a time of year—late summer and fall—when many other garden plants are starting to fade.
By choosing the best time to buy dahlia tubers, you are giving yourself the gift of choice. You aren't limited to whatever is left on the shelf; you are the architect of your own beautiful summer landscape. Whether you are a first-time gardener or a seasoned pro, the process of choosing your varieties in the winter is the start of a wonderful journey.
Conclusion
The best time to buy dahlia tubers is during the early winter months of January and February to ensure you have access to the widest selection of colors and shapes. While you can certainly find beautiful tubers into the spring months of March and April, shopping early prevents the disappointment of seeing your favorite varieties sold out. By planning ahead and understanding the shipping process, you can ensure that your garden is prepared for a spectacular show.
- Shop Early: January is the peak time for variety.
- Trust the Timing: Your tubers will ship when it is safe for your zone.
- Quality Matters: Choose firm tubers with intact necks and visible eyes.
- Be Patient: Dahlias love warmth and will reward your wait with stunning blooms.
The upcoming growing season is full of potential. We invite you to explore our selection at Longfield Gardens and find the perfect blooms to make your garden shine.
Choosing the right varieties in the winter is the first step toward a garden that will bring you joy all summer long. Secure your favorites early, and the rest is just waiting for the sun.
FAQ
Is it okay to buy dahlia tubers in the fall?
Some specialty growers offer fall sales, but most major suppliers, including us, open our main inventory in the winter. If you do receive tubers in the fall, you must be prepared to store them in a very specific, climate-controlled environment to keep them from drying out or freezing before spring.
What happens if I buy dahlias and they sell out before mine ship?
When you place an order at Longfield Gardens, your items are immediately reserved in our inventory. We do not oversell our stock. Once you receive an order confirmation, those tubers are set aside specifically for you and will be kept safe until your region's shipping window opens.
Can I buy dahlia tubers in the summer?
By mid-to-late June, most tuber suppliers have finished shipping for the season because the plants wouldn't have enough time to mature and bloom before frost. If you want dahlias in the summer, your best bet is to buy "started" plants in pots from a local garden center.
Why can't I have my tubers shipped in February?
Dahlia tubers are full of water and will turn to mush if they freeze. Even if your local weather is warm, the package may travel through much colder states or sit in a cold delivery truck. We wait to ship until the "path of travel" is safe; our Shipping Information page explains the timing in more detail.