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Dahlia Tuber Sale Information, Terms & Conditions

First sale is March 16, 2024 at 10:00am CT. Subsequent restocks will happen as we review inventory.

Sale Date & Time


Our Dahlia Tuber Sale is online only.

If you have an item in your cart, it is not reserved until you complete your order, successfully check out, and receive a confirmation order number and email. Dahlia Mania, especially for some rare varieties, is a real thing. I know the frustration of trying to check out while things go out of stock. This functionality is related to e-commerce, and not something the farmers can control. 

Once an order is placed, we are unable to add additional items or combine shipping. If you would like to add any additional items, you'll need to submit an additional order, which will ship separately.


We may set some limits on the most sought-after varieties and when inventory is limited, so that more people have a chance to grow them. This will clearly be stated in the product description. Please respect these limitations when placing your order. We will return any order that does not respect these limits.

Our Promise & Policies

Above all else, we want you to be happy with your order! Plant and tuber health is a top priority on our farm. We believe in working with nature and not against nature. Although we are not certified organic, everything is grown organically with plant and pollinator health in mind. We also introduce beneficial insects for pest and disease management. Aside from growing with plant and pollinator health in mind, we also proactively test for cucumber mosaic virus (CMV), tomato spotted wilt virus (TSWV), impatiens necrotic spot virus (INSV), and tobacco mosaic virus (TMV). These tests are expensive, so it's not economically feasible to test every plant at this time, but we believe it's a step in the right direction.

We are ruthless during dividing, and save only our best tubers for the sale (the less-desirable tubers are what we grow!). That said, some varieties do store better than others, and some may be shipped with minor imperfections that will not impact viability or vigor (our field is a testament to this as this is mostly what we grow). It's also possible that there is a storage failure between the sale and shipping. If there is storage loss, we will refund it from your order.

We follow the American Dahlia Society's "Gold Standard" for dividing by using sanitized tools between divides. Everything is triple labeled and those labels are carried throughout the entire process, from planting to storing to dividing to shipping. Our tubers are inspected and approved by the Wisconsin Department of Agriculture. 

We guarantee that your tubers will arrive to you with at least one viable eye. Upon receipt of your order, please inspect your tubers immediately. If you have any concerns, please email us at within 5 days of receiving your order. The email should include your order number and a photo. At the sole discretion of Petal Back Farm, we may either replace or refund your order. Please note that the Shipping Cost for your order is non-refundable. Please do not send messages on social media as these are easily missed due to volume and weird filtering (and we want you to know that as a customer of PBF you are much more important to us than Instagram!).

While your satisfaction is of the utmost importance to us, we cannot be held responsible for improper storage once you receive your tubers, growing conditions, neglect, pest damage, rot after planting, and so forth. Similarly, if you decide to pot up your tubers for cuttings or otherwise, we cannot be held responsible for rot, desiccation, mold, plant failure, and so forth (these are advanced growing techniques and a lot can go awry, even for experienced growers and perfectly-viable tubers).

Although we do our best to provide you with the healthiest true varieties, mistakes can happen. If for some reason, the tubers you order are not what you expected, please email us at by the third week of September. The email should include your order number and a photo. At the sole discretion of Petal Back Farm, we may replace or refund your order (please do not send messages on social media). Please note that the Shipping Cost for your order is non-refundable. 

As previously noted above, our tubers are inspected and approved by the Wisconsin Department of Agriculture. We follow ADS recommendations of culling the field of any suspicious plants during the growing season, randomly test, sanitize between tools, and use several organic biological methods to keep pests controlled. We do everything within our power to ensure healthy stock. That said, by purchasing tubers from us, you accept the fact that dahlias sometimes get disease, and that these are not 100% avoidable and/or detectable (as plants can be asymptomatic). In fact, according to the American Dahlia Society's ongoing virus research, an average of 87% of healthy, asymptomatic dahlia plants carry at least one dormant virus. Interestingly, one ADS study found that 38% of clean stock planted from previously negatively-tested plants in 2016 tested positive in 2017.


Payment can be made through either PayPal or a major credit card.

Sales Tax

All Wisconsin state residents will be charged sales tax.


We will ship all orders starting in April, weather permitting, and it takes multiple weeks to process all orders. We can only ship to the United States (sorry, no international orders at this time but we are in discussions with our Department of Ag). If you have concerns with this shipment timeframe, please do not order, as we are unable to accommodate special requests at this time. Everything is shipped via USPS Priority Mail. Once your order ships, you'll receive a confirmation email with tracking information.

Shipping rates are:
1–4 tubers = $10.40
5–24 tubers = $17
25–40 tubers = $24.75
41–80 = $45.60
81+ = $62.70

Due to ecommerce system limitations, we do not combining shipping. It's a logistical nightmare and we've learned it opens us up for errors, because it's completely manual on the backend. While it's not a perfect solution, this is the reason we do tiered shipping versus a flat rate across the board. This way, the shipping price and the box size are appropriate for the amount of tubers ordered (p.s., free shipping is not free and those costs are built into the products). We'll continue to evaluate and adjust based on feedback, as well as system improvements.

Local friends: Due to logistics, but also personal time constraints, we do not offer farm pickups at this time. (Even mail carriers have a really difficult time finding our farm 😅). Apologies for any inconvenience, but we will send out a newsletter if this changes.

Preparing for the Sale

You can preview varieties here. All varieties will be marked as out of stock until the sale. Please note that final varieties and prices are not guaranteed until the site goes live for the sale, but we'll do our best to keep it as accurate and as up-to-date as possible. The morning of the sale, the page will go blank until the sale goes live (this is so we can update the website for the sale). If for some reason there a storage issue, we'll refund the variety from your order.

Dahlia Care Tips

If you are unable to plant right away, be sure to have a plan for storing your tubers. Storage can be tricky business and entirely dependent on your unique climate and location. Here at the farm, we store our dahlia tubers in vermiculite in our cooler (a cool, dark place between 45–55 degrees F works well) and around 70% humidity. Be sure to check often for rot and/or desiccation as dahlia tubers are sensitive to moisture and are prone to rot in wet conditions.

Plant dahlia tubers in the spring, after all danger of frost has passed. If there is excessive rain in the forecast, wait until this passes, as dahlia tubers are prone to rot in super wet conditions.

Choose a location with well-draining soil (pH 6.5–7.0) and full sun (at least 6–8 hours). If you haven’t already, prepare soil with amendments/compost based on soil needs. You can see exactly how we fertilize our soil organically here.

Dahlia plants can get quite large and may require staking. We use T-Posts and twine.


That was a lot, but we want to make sure we cover all the bases.

At the end of the day, we're just a couple of dreamers who love growing things! As a dahlia enthusiast, I enjoy the madness, but I want you to have the best experience possible, and I hope you know we're doing *our best* to provide that experience.

From one dahlia lover to the next, CHEERS!

And may the odds forever be in your favor :)

~Maggie, Matt, and the DAHLIAS!

Below is all of the information regarding our dahlia tuber sale. Please review this information prior to the sale. By purchasing dahlia tubers from us, you agree to the following terms and conditions.

As noted above, there is always risk when buying plants. By purchasing tubers from Petal Back Farm LLC, you are agreeing that the maximum amount of damages entitled to in any claim are not to exceed the total cost of the tubers purchased. Petal Back Farm LLC is not responsible for any compensation beyond a refund for the amount of tubers purchased by the buyer.

Limit of Liability

Payment can be made through either PayPal or a major credit card.


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