With the start of each new year at Seed Savers Exchange come seed orders from gardeners across the country who are eagerly anticipating another spring of growing heirloom and open-pollinated vegetables and flowers. And 2018, I discovered last week, was no different. As I pitched in with order fulfillment, I plucked packet after packet of seeds from sturdy cardboard trays, helping to fill orders from customers from Massachusetts to California and seemingly every state in between. Perhaps inevitably, I also pondered this question:
What seeds will I start indoors this year?
Not even a year ago, that was the furthest thought from my mind. When I started work in communications at Seed Savers Exchange in November 2016, I thought indoor seed starting was the domain of master gardeners and others with a green thumb. In other words, it was not for me, someone who struggled to keep even the hardiest house plants alive.
But then the first Saturday in March rolled around, and I headed out to Heritage Farm (our Decorah headquarters) to snap a few photos of the “Start with a Seed” workshop taught by fellow SSE staffer Heidi Hackman. Immediately my interest was piqued. There Heidi stood beside a large tub of rich, black soil. She talked about seeds and the roles that soil, water, containers, and heat played in their germination. Perhaps most importantly, she emphasized that anyone could start seeds indoors by following a few simple steps. Inspired, I started not only taking photos but also jotting down tips, among them:
Do make sure the timing is right for starting seeds indoors by checking the average last frost date in your area. Seed packets typically offer guidelines about when to start seeds indoors as well as information such as days to germination and maturity.
Don’t get too hung up on the containers in which you will plant your seeds. Many different items will work as containers, including many you might have already in your home—think yogurt cups, egg cartons, and even egg shells. Just make sure that there are holes in the bottom of your containers to allow for water drainage.
Do make sure you have good soil. Add 30-40 percent compost (i.e., nutrients) to your seed-starting soil mix. The mix should be damp (not wet) before you plant your seeds.
Do follow the directions on the seed packet when it comes to planting depth. Planting seeds too deep is a leading cause of low germination rates.
Do cover your containers—plastic wrap will do!—until the seedlings emerge to help ensure a more constant moisture level. Make sure to remove the cover as soon as you see the seedlings.
Don't overwater your seeds.
Do strive for optimal germination temperature (optimal growing temperature plus 10 degrees for most plants) for your soil by placing your containers on heat mats or even on top of your refrigerator. Remove your containers from heat once your seedlings appear.
Do place grow lights (if you use them) close to the soil once seedlings emerge.
Do introduce stressors like wind and direct sun gradually when “hardening off” your seedlings. (Hardening off is the process of moving plants outdoors for a portion of the day to acclimate them to the conditions they will encounter once transplanted.)
Do consult trustworthy online resources like this growing guide from Seed Savers Exchange for more information.
Armed with these tips, I was determined to start plants from seeds for the very first time. What plants? Tomatoes, of course—a tried-and-true beginner’s crop. But what variety of tomatoes? That proved a tougher decision. After the workshop, I stopped in to Seed Savers Exchange’s Lillian Goldman Visitors Center and perused the rack of tomato-seed varieties, each with its own tantalizing history. The ‘Italian Heirloom’ tomato packets immediately caught my eye. Winner of Seed Savers Exchange’s 2012 Tomato Tasting Event, the 'Italian Heirloom' was touted as “extremely productive,” bearing bright red fruit that grows to more than a pound and boasts excellent “full-tomato” flavor. A productive, great-tasting, and award-winning tomato variety? I was sold!
Next up: “Adventures of a first-time seed starter, part two”: What I did right (and wrong) with those ‘Italian Heirloom’ seeds once I brought them home.