Seed Starting Indoors From Start To Finish (2024)

We have all been waiting for this moment, some of us much longer than others! Nonetheless, here at MIgardener, we are very excited to give you our finest seed starting tips. These tips will help you prepare your best crop to date!

Starting from seeds is the most cost-effective way to garden. If this is your first year starting from seed, a few one-time purchases will need to be made on seed starting materials. Reusable starting containers, lights, and shelves may be necessary, depending on the setup you are going for. Purchasing seeds gives you the opportunity for multiple plants per packet, where a starter plant will only give you one season of harvest. Seeds can also be saved for multiple years, and if you buy heirloom varieties, you can harvest new seeds from your plants each season. If you are successful with your seed starting but run out of room in the garden, selling leftover plant starts is a great way to make some money back!

A cost-effective seed starting mix can be found here; it is much handier to make your own seed starting mix than to buy it from a store.

Supplies

Seed starting trays or plug trays are essential for at-home seed starting. Some varieties need more soil to start properly; some cells are too small for these varieties. Delicate varieties cannot handle the transition to a bigger cell or will grow out of smaller ones much faster than others. Varieties like tomatoes, beans, squash, and peppers are recommended for larger plugs. Other varieties are not affected as much by transfers and can succeed in smaller trays. Choosing tray sizing depending on the plant will make for a much bigger garden in the long run. 2.5-4inch pots are normally recommended depending on the size of each plant.

Grow lights will be required if varieties don't get enough natural light. The lumens level will tell you how bright the bulbs will be, and the Kalvin level will tell you where the light falls on the yellow to blue scale. The higher the Kalvin number, the further from the plants they can be. Consider which length and width of grow light will be the best for your setup. In the realm of heat, peppers started indoors may require heating mats. Heating mats are essential for getting pepper seeds to germinate. Once they are germinated, you can remove the heating pad.

Seed Starting Mix

The perfect seed starting medium can be found in stores or made at home. Making your own mix at home will be the most cost-efficient way to start. Upfront, the ingredients may seem more expensive, but they will last longer over time. Peat moss or coco coir, perlite, and vermiculite are the three best ingredients to add to an at-home mix. Sift them together to create the best texture. To learn how to mix your own seed starter, check out this video. We recommend finding a compostable or reusable label like popsicle sticks or wooden coffee stirrers to mark your seeds. Wax pencils or garden permanent markers are the best options to combat fading in the garden.

The Best Time To Start Seeds

On Clyde's Garden planner and the Farmers Almanac, finding your last frost date easy as pie. The last frost date is your guide for how many weeks in advance you should start your seeds indoors. Planting varieties out after the last frost will give you the best results for your garden. There should be instructions for when is the best time to start them or what temperature each plant will need to thrive on the back of your seed packets. Plan your garden early to map out the best plan. Buy a calendar and designate it specifically to your seed starting schedule. Normally onions, peppers, and tomatoes are started first, while other varieties won't last as long. Tip: Most root vegetables should not be started indoors. These varieties do very poorly if transplanted because any disruption of the soil will damage their root structure.

Building Your Seedlings

When the glorious time finally comes to start your seeds, make sure to pre-moisten your seed starting mix. Mist the mix with a water bottle to help the soil retain water over time. Once your starting pods are filled with soil, it's time to plant each seed! Plant each seed twice as deep as it is wide. For example, if your seed is 1cm wide, the plant is 2cm deep in the soil! Because the seeds are so new, it's important to get watering right to avoid damaging them. Bottom watering promoted root growth, decreased the chances of fungus growth on your starters, and won't damage the delicate seedlings. Once your plants grow their first true leaves, it is time to transplant them to a bigger pot or into the garden, depending on your growing schedule. This is the point in the process where you apply the first round of fertilizer. Potting soil or compost is the best growing medium to transplant into.

Final Seed Starting Steps

As your seedlings grow, be sure to maintain consistent moisture for them to germinate. Place grow lights 2-3 inches above your seedlings to avoid leggy growing. Raise the lights as the plants grow higher. The temperature surrounding your seedlings should be between 68-72°F. Ad an oscillating fan to encourage hardy growth and make the hardening off process easier. Introducing your start to the outdoor climate should happen in small time frames that build until your starter is ready to stay outside full time. First, set your starters in the shade and gradually introduce them to sunlight to prevent burning. For more details on hardening off your seedlings, click here. Once your starts are ready to transplant, water them in well.

There is nothing more empowering than starting your produce from seed. Once you understand the process, it's hard to go back. The amount of money saved on produce every season becomes exponentially beneficial, and you can only get better at it! Each seed can produce so much food for you and your family. Additionally, one plant can produce so many seeds for a continuous cycle of bounty! If you found this post helpful, please save it and share it with others in your life.

– Kaitlynn fromMIgardener

Did you enjoy this post? MIgardener is passionate about sharing free gardening tips and information! If you are looking for inspiration in the garden, make sure to check out ourPinterest page.Check us out atMIgardener.comor onyoutube,Instagram, andFacebook.

Seed Starting Indoors From Start To Finish (2024)

FAQs

How many seeds to plant when starting indoors? ›

Add one seed to each pot or cell. Use the crease of the seed packet or place seeds in a creased piece of paper to help direct the seeds where you want them to go. Sometimes not every seed will germinate. To increase your chances of success, add 2-3 seeds to each pot and thin out the extras once everything has sprouted.

Should you water seeds right after planting? ›

Moisture Matters – After planting, water seeds with a gentle mist or shower. Avoid using a strong splash or spray, which can dislodge seeds. It is vital to keep soil consistently moist. In a sunny spot, this may mean watering twice a day.

How often should I water seeds indoors? ›

Watering. Check on your seedlings at least once or twice a day to see if they need misting. You want the surface of your soil to stay lightly damp because if your seeds dry out they won't germinate but if they stay too wet, they could rot. When at least 1/2 to 2/3 of the seeds sprout, you can remove the cover.

Do I need a light to start seeds indoors? ›

A seedling that is planted indoors just a couple of weeks before being transplanted outdoors can catch up outside, but a seedling that spends months indoors needs all of the light it can get to produce strong stems and to get a good head start on the growing season.

Do seeds need sunlight to germinate? ›

Sunlight supports the germination process by warming the soil. Although uncommon, some seeds need direct contact with sunlight to germinate. Once leaves have sprouted, sunlight is the primary energy source for plant growth through the process of photosynthesis. A seed has everything it needs to begin a new life.

What happens if you plant too many seeds together? ›

Crowded seedlings are a common problem that can prevent plants from reaching their full potential. If you don't plant your seeds far enough apart, they'll have to compete for the same sun, water, air and nutrients in the soil.

What happens if you start seeds indoors too early? ›

If you start too early, you might end up with leggy, overgrown plants that need babying until the frost disappears and the soil warms. Start too late, and you'll be drooling over your neighbor's BLTs while forlornly waiting for your plants' blooms to turn into fruit.

What month is best to start seeds indoors? ›

Mid-March is the best time to start many vegetables and annual flowers indoors for transplanting outside once the threat of frost has passed.

Should I cover my seeds to germinate? ›

To speed germination, cover the pots with plastic wrap or a humidity dome that fits over the seed-starting tray. This helps keep the seeds moist before they germinate. Once seeds have germinated and you see leaves, remove the cover to allow air to circulate.

Can you put seeds straight into soil? ›

Start Direct Sowing. Many popular vegetable seeds can be sown directly in your outdoor garden – including salad greens, carrots, cucumbers, radishes and beets! Before you begin, watch this quick-start video on how to direct sow seeds: Not all seeds require starting indoors.

Should I water seeds at night or morning? ›

early morning is the optimum time. the plants will respond extremely favorably. and the plants will grow beautifully. remember am water pm go to bed.

Can you start seeds in egg cartons? ›

You can use egg cartons as a seed-starting tray! Depending on the type of carton you have, you can even cut apart the individual sections and plant them, as the carton will biodegrade. Be sure to poke small holes for drainage, and put the cartons on a tray or in a shallow pan to catch any residual water.

What to do after seeds sprout indoors? ›

Keep your seedlings in a warm area and make sure to check them everyday to see if they need water. Water gently when the soil is dry to the touch. Now that your seedlings have reached out from their inner seed casing and poked up and out of the dark soil they will naturally be looking for light.

What is the best fertilizer for seedlings? ›

It is best to opt for a balanced fertilizer or one with a higher ratio of nitrogen and phosphorus. You can use either liquid or granular fertilizers to feed seedlings, but never apply fertilizer at a rate higher than recommended on the container.

Can I germinate seeds in my house? ›

You can germinate vegetable or flower seeds indoors in early spring using a few basic tools. This gives plants more time to mature before you transplant them outdoors, which can be critical to their survival in colder climates.

When should I start seeds in my house? ›

When to start seeds indoors. start indoors. General rule of thumb for most varieties is to start seeds six weeks before the last frost. Know your growing zone.

How long does it take for seeds to sprout indoors? ›

Some are quick to germinate, taking 1-2 weeks at most, such as chillies, beans, sunflowers and pumpkins. Some seeds take more like 2-4 weeks, such as mango and parsley. Others, depending on how warm/cold it is, take closer to 2 months, for example avocado.

What temperature do you start seeds indoors? ›

The closer the temperature is to the optimum, the quicker germination will occur. Most seeds germinate when the soil temperature is between 68° and 86°F. Once germination occurs, the optimum growing temperature for the seedling is about 10°F cooler than the optimum germination temperature.

References

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