Tuber Sale Sat Feb 18 @1PM EST | Build Your Dream Cart

Sale of Dahlia Seed for the 2023 growing season has ended. Thank you for your support and we look forward to serving you at the Tuber Sale starting Saturday, February 18th.

Premium Dahlia Seed

Seed Parent: Seedling Mix

Pick the seed parent or mix of your choice. Each listing is for one packet of Coseytown's own premium dahlia seed. All seeds were open pollinated and harvested from Coseytown Flowers dahlia fields. Each packet contains approximately 20 seeds. 

Seedling Mix
Seed in this mix was collected from our wild and wonderful seedling field - where we find our new one of a kind Coseytown varieties bred for excellent plant vigor and tuber production. These seeds have been open pollinated amongst mostly open centered dahlias; expect open centered blooms in an array of colors and forms. Perfect for pollinator lovers, adventurous growers and eclectic garden curators!

Hybridizer Mix
Seed in this mix was collected from the Coseytown dahlia propagation fields, which are curated with the best cut flower dahlia varieties available - including unreleased Coseytown varieties! Seed parents are a mix of forms. All seed parents are fully double (closed center) dahlias open pollinated amongst other fully double dahlias. A perfect jump-start for the aspiring dahlia hybridizer. Your next new undiscovered dahlia is waiting for you! 

Coseytown Gale
All seed was collected from Coseytown Gale, a Coseytown Cut Flower variety that also happens to make great seed! This seed was open pollinated amongst other fully double dahlias. Coseytown Gale's seedlings have exhibited a marked tendency for strong stems and excellent tuber productivity - great traits for cut flower dahlias!

Growing From Seed

You are planting a treasure to be explored in your garden when you plant dahlias from seed.  Dahlia seeds DO NOT grow true to the parent variety and there are endless possibilities when growing dahlias from seed. Each seed is a surprise! Please note that while I select only the finest seeds for sale which are plump, dark, firm, and free of mildew, dahlia germination rates are known to be variable and germination rate is UNKNOWN. You accept this when you purchase this product. 

Dahlia seedlings bloom and make tubers in one growing season. Follow your growing zone recommendations for planting and harvesting; a general rule of thumb is to plant dahlias when you plant your tomatoes - after your last frost and when soil temps are above 55°F. For best results, start dahlia seeds indoors 4-6 weeks before planting out, planting seedlings with 4-5 leaf sets in the field after the last frost. For more information on how to germinate and grow dahlias from seed, and to find examples of seed-grown dahlias, visit the Coseytown Flowers Instagram.

Learn About Coseytown

Here at Coseytown Flowers we specialize in the creation, cultivation and sale of new dahlia varieties, with leading plant traits in health, growth and vigor, for the cut-flower and enthusiast markets.

Leading the charge is LeeAnn Huber - the dahlia hybridizer, educator, flower farmer and entrepreneur behind it all. Prioritizing continual growth in knowledge and practice is our guiding star, and LeeAnn's passion for lifelong learning and applying evidenced based approaches in an agricultural context is embodied in her daily mantra ‘Every day is a school day!’ LeeAnn has amassed a sizable and engaged following among fellow cut flower farmers and gardening enthusiasts, where she is known for taking topics head on in a thoughtful and engaging way while sharing her expertise on all things dahlias.

Coseytown Flowers strives to offer only the highest quality single-division dahlia tubers and premium dahlia seed. All dahlia tubers are guaranteed true to variety, and I will never sell anything I would not personally be satisfied to receive myself ...but don't just take our word for it, check out what our flower friends are sharing.

All our tubers are individually labeled, and all orders are individually inspected for quality and accuracy prior to shipment. Additionally, international tuber orders (currently Canada) are individually inspected by the Pennsylvania Department of Agriculture. Coseytown Flowers dahlia fields and storage facilities are inspected annually by the Pennsylvania Department of Agriculture and we possess all needed inspections and licensing to sell dahlia tubers and seed. Every dahlia tuber and seed sold have been grown right here in Greencastle, PA.

At the heart of our mission is the Coseytown commitment to transparency with continual growth in our core values of healthy plants, happy pollinators and responsible production. We take the health of our plants and tubers seriously by testing for and providing our dahlia plants with the proper conditions, nutrition and proactive management for optimal plant and pollinator health. We also proactively test for Cucumber mosaic virus (CMV), Tomato spotted wilt virus (TSWV), Impatiens necrotic spot virus (INSV) and Tobacco mosaic virus (TMV). To learn more directly from LeeAnn about the Coseytown Commitment to Healthy Dahlias, including our proactive 3-step approach to preventing dahlia viruses, please click here.