Even though the outdoor garden is resting, winter is an excellent time to start growing indoors. Seed starting during the colder months keeps gardeners connected to the process and gives plants a healthy head start before spring arrives. With the right seeds and simple supplies, indoor seed starting can be both easy and rewarding.
At Whitney’s Farm Market & Garden Center, winter is all about planning ahead and preparing for a successful growing season.
Why Start Seeds Indoors in Winter
Starting seeds indoors allows plants to establish strong roots before facing outdoor conditions. In colder climates like the Berkshires, this extra time can make a big difference once spring planting begins. Indoor seed starting also gives gardeners access to a wider range of varieties, including slower-growing vegetables and flowers.
It’s also a great way to stay inspired during the quieter months of the gardening year.
Seeds You Can Start Indoors Right Now
Many plants benefit from an early indoor start during winter.
Vegetables
Tomatoes, peppers, eggplant, broccoli, cabbage, and cauliflower are well suited for winter seed starting.
Herbs
Basil, parsley, cilantro, chives, thyme, and oregano are easy to start indoors and can be harvested before moving outside.
Flowers
Pansies, violas, snapdragons, petunias, and alyssum appreciate the extra growing time and often bloom earlier when planted out.
Slow-Growing Plants
Some perennials and specialty plants need additional time to mature and perform best when started indoors.
Seed-Starting Kits and Grow Lights
Seed-starting kits simplify the process by providing trays, cells, and humidity domes that help maintain consistent moisture. A lightweight seed-starting mix is essential, as it drains well and supports healthy root development.
Grow lights are especially helpful during winter when natural daylight is limited. They provide consistent light and prevent seedlings from becoming tall and weak.
Light, Warmth, and Care
Most seeds germinate best in warm conditions, while seedlings need bright light once they emerge. Grow lights should be positioned just a few inches above seedlings and run for about 14 to 16 hours per day. Water gently and keep soil evenly moist, but not soggy.
As seedlings grow, lights can be raised to maintain proper distance and encourage sturdy growth.
Seed Starting FAQs
Do I need grow lights to start seeds indoors?
Grow lights aren’t required, but they provide the most reliable results during winter when daylight is limited.
When should I start seeds indoors?
Most seeds are started 6 to 10 weeks before the average last frost date, depending on the plant.
Why are my seedlings tall and floppy?
This usually means they aren’t getting enough light or the light source is too far away.
Can I use regular potting soil for seed starting?
Seed-starting mix is recommended because it’s lighter and drains better than standard potting soil.
Do seedlings need fertilizer right away?
Most seedlings don’t need fertilizer until they develop their first set of true leaves.
Start Growing Now for a Better Spring
Seed starting indoors is a simple way to stay engaged with gardening through winter while preparing for a strong spring season. With a little planning and the right supplies, you’ll be ready to transplant healthy, confident plants when outdoor conditions improve.
Whitney’s Farm Market & Garden Center is currently closed for the winter season, but we look forward to welcoming you back in the spring with quality plants, helpful supplies, and expert advice to help your garden thrive.
