The Best Way To Start Wildflower Seeds

Can you just toss some seeds right on top of the snow and hope they sprout when conditions are right? Not exactly.

February 12, 2018
wildflowers
Jacky Parker Photography/getty

Tossing seeds onto snow might result in an instant bird feeding frenzy rather than a naturalized garden come spring. Some seeds, including many native wildflower seeds, need a moist chilling period (below 45°F for about 60 to 90 days) to break dormancy. The process is called cold stratification, and it can be done several ways, including sowing seed outside into beds in autumn, planting flats of seeds in coldframes, and chilling seeds in the refrigerator.

"Broadcasting seeds on snow could work, but I don't see any real point in it," says William Cullina, author and nursery director of the New England Wild Flower Society. "You'd have better luck preparing a site in fall, before the first snow, and sowing the seeds then." Wildflowers often grow in poor soils and difficult climates, but they still benefit from a well-prepared seedbed. A raised bed filled with high-quality topsoil provides the best environment, but a garden bed with well-draining, fine-textured soil will work fine, too. In either situation, dig in 1 to 2 inches of finished compost before sowing.

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The first rule to flower arrangements is that there are no rules to flower arrangements:

Cullina suggests sowing rows of seeds in late fall and covering the seeds very lightly with soil or hay. "In spring, you'll see the seedlings come up in rows, and then you can thin them and transplant them." This method produces successful results with minimal hassle. Columbine (Aquilegia spp.), blue stars (Amsonia spp.), and members of the aster family (Asteraceae), including Joe Pye weed (Eupatorium spp.) and blazing star (Liatris spp.), generally germinate well with this method, Cullina says. Also, consider contacting a local wildflower organization and ask about wildflowers that grow well from seed in your area.

 

Related: 15 Native Wildflowers Every Gardener Should Plant