Winter Is the Time to Sow Native Seeds

Growing bird-friendly plants from seed is a rewarding way to do your part.
Bright green seedlings emerge from soil.
Come late summer or early fall, it will be time to plant your homegrown seedlings in the ground. Photo: Courtesy of Wild Seed Project

On a long winter鈥檚 night, the vivid scents, sounds, and colors of a native plant garden in bloom can feel like a half-remembered dream. But if you think you have to wait for the ground to thaw before you can grow beautiful and beneficial species, think again鈥攚inter is the perfect time to get started. 

For many gardeners, raising native plants means swinging by a local nursery come spring. Planting these species is one of the best ways to help birds around your home or community. They provide a buffet of seeds, fruit, and nectar while also supporting insects that birds need. The cherry on top: Plants adapted to your local environment also tend to require less upkeep than non-native species. 

But if you鈥檙e itching to start preparing for the warmer months, consider growing native plants from seed this winter. Doing so is simple and affordable and comes with other benefits, says Emily Baisden, seed program manager for the , a Maine nonprofit that advocates for native gardens. Plants grown from seed, rather than through cloning, help to promote genetic diversity. And nurturing them can help build a sense of hope and connection to one鈥檚 local environment. 鈥淎 lot of people think of winter as being a time of death, and it鈥檚 not鈥攁ll of these plants are very much alive,鈥 she says. 鈥淚t鈥檚 a good way to remind people to think about all this life that is actually going on around us, and that we can help to promote in our own way.鈥

探花精选 spoke with Baisden to walk through the basics of growing native plants from seed. Here鈥檚 what you need to know.

Make a Plan

First, assess the site where you intend to plant. Is it wet or dry? Sunny or shaded? Sandy or loamy? Then, use 探花精选鈥檚 native plants database to find species suited to your region that will do well in that spot. 鈥淭here鈥檚 a beautiful plant for all locations,鈥 Baisden says. 

Now that you鈥檝e chosen some species to grow, where can you get them? 探花精选鈥檚 database can point you toward seed sources, and the Wild Seed Project has and . Baisden also recommends checking out the and other native plant providers offered by Homegrown National Park, a native plants campaign led by the entomologist and author Doug Tallamy. The Xerces Society for Invertebrate Conservation also provides a . 

Before purchasing seeds, confirm that they were produced without pesticides. Baisden says it鈥檚 especially important to avoid anything grown with systemic chemicals such as neonicotinoids, which can linger throughout a plant鈥檚 tissues and harm the insects birds rely on for food.

Sow Your Seeds

Once your seeds arrive, it鈥檚 time to pot them. Baisden recommends using containers between four and eight inches wide, and they don鈥檛 need to be fancy鈥攊nexpensive plastic pots work fine. Pack each one with organic potting soil, leaving about half an inch at the top, and use labels to remember which species each contains.

Now, sprinkle the seeds on top of the soil. Arrange them quite densely: Unlike with some vegetables or other plants, there鈥檚 no need to give each seed space. In fact, Baisden finds that many native species are more likely to germinate if they鈥檙e packed in close to or even touching one another.

Next, you鈥檒l need some coarse, all-purpose sand. Add a thin layer of sand on top of the seeds to help keep them from splashing out of the pot if it rains. Baisden recommends a sand layer that鈥檚 the same thickness as the seeds you鈥檙e covering. 

Take a Break  

With that, it鈥檚 time to take the seeds outside鈥攜es, outside. Don鈥檛 worry about the cold or snow: Many native plants go to seed in the fall, so those seeds are built to spend the winter in the elements, biding their time. 

Haul your seed-filled pots outdoors and place them in a flat, somewhat shady spot. Baisden recommends putting them under a deciduous tree so the seeds will soak up some sun in the winter but the sensitive seedlings will receive protective shade when the tree leafs out in spring.

Here鈥檚 an important bit: Cover all of the pots with rodent-proof wire mesh, such as hardware cloth. 

Now, be patient! The plants will emerge when they鈥檙e ready. Some will send up seedlings as soon as the weather begins to warm up, while others may take weeks or months longer. And some species need to lie dormant for multiple winters before they germinate, so read up on the plants you choose and know what to expect.

Get to Planting

As spring arrives, keep your seeds or seedlings watered. If you鈥檝e planted a species that requires more sun, move those pots to a sunnier spot. You can leave the plants potted throughout the summer, though you may need to move some large species to bigger pots. In that event, there鈥檚 no need to tease apart each plant鈥攋ust gently remove the whole mass from the smaller pot and plop it into the bigger one. Oh, and be sure to remove the rodent-proof mesh before the seedlings grow too big.

As summer turns to fall, prepare your planting site by removing grass or weeds that would compete with your young native plants. Then, it鈥檚 time to plant: Dig a hole just wider than the plant鈥檚 roots and deep enough so that the soil level from the pot will match that of the planting site. Carefully remove the plant from its pot, place it in the hole, fill the hole with soil, and give the plant a drink. No need to be finicky, Baisden says: 鈥淵ou can use a little bit of leaf mulch if you're worried about it, but I find the great thing about native plants is that you can just kind of put them in the ground, and they鈥檙e happy as can be.鈥

Don鈥檛 get down on yourself when things don鈥檛 go perfectly. 鈥淓verybody who鈥檚 in the plant world has killed a lot of plants.鈥

And that鈥檚 it! If you鈥檙e looking for more on these steps or other details about growing from seed, the Wild Seed Project helpful on its website. And if you鈥檙e new to growing native plants, don鈥檛 get down on yourself when things don鈥檛 go perfectly. 鈥淓verybody who鈥檚 in the plant world has killed a lot of plants,鈥 Baisden says. 鈥淚t鈥檚 part of learning.鈥 The key is to have some fun, see what works, learn from what doesn鈥檛, and know that your work is paying off by supporting birds and biodiversity.

As you learn and grow more plants, consider giving some away to friends and neighbors to establish a community of native-plant gardeners. Baisden says her corner of Maine is fortunate to have a strong network of local growers who exchange plants and give them as gifts. 

Just a few native plants can make a noticeable difference in the number and variety of pollinators and birds that visit a space, Baisden says. The more people see that change in their neighborhoods, the more momentum there will be for growing species that boost biodiversity. 鈥淚t鈥檚 something that the individual can actually do,鈥 she says. 鈥淎 lot of times we feel helpless to deal with some of the things going on in the world. This is something that we can see in our lifetime as a change that we did.鈥

This story originally ran in the Winter 2022 issue as 鈥淪ow Good.鈥 To receive our print magazine, become a member by .