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

Seed Starting Indoors From Start To Finish? ›

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

How do you start seedlings indoors for beginners? ›

How to Start Vegetable Seeds Indoors
  1. Moisten your potting mix.
  2. Fill your seed trays or containers with potting mix. ...
  3. Using a small dibber or pencil, poke holes in the soil of each cell or container. ...
  4. Label your trays.
  5. Bottom water your seed trays/containers. ...
  6. Set seed trays aside to germinate.
Apr 24, 2020

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.

How many seeds do I need to start indoors? ›

Don't Take on Too Much

While you learn how seed starting works, indoor sow no more than a couple dozen plants in three or four varieties. It's not complicated or difficult once you understand the process, but it's best to start small so you don't get overwhelmed at first.

Should I start all my seeds indoors? ›

In warmer regions, starting seeds indoors can allow you to get in an extra round of crops (especially cool-season crops) before summer heat stifles growth. If you don't start seeds indoors, you will need to buy young plants called “transplants” or “starts” at the garden store or nursery.

Can I use egg cartons to start seeds? ›

Seeds can grow in just about anything that holds soil and allows for proper drainage. Using cardboard egg cartons is a great option because they are biodegradable, and you likely have a carton already in your fridge. Plus, starting your seeds in cardboard egg cartons is easy!

How long should seedlings be indoors? ›

Aim to start seeds indoors 4-8 weeks before the suggested outdoor planting dates. For larger plants, like watermelon, squash, and pumpkin, you might transplant in as little as four weeks. Similarly, if you are starting plants in small containers, four weeks may be all it takes for them to fill the cell.

Is February too early to start seeds indoors? ›

Even if the last thing you're thinking about in January or February is the garden, it's actually a great time to start seeds indoors for frost-hardy leafy greens and for slow-to-get-started herbs.

Do you start seeds in sun or shade? ›

Most seeds will not germinate without sunlight and will perform best with 12 to 16 hours each day. Indoors, place seed containers in a sunny, south-facing window and give the container a quarter turn each day to prevent the seedlings from overreaching toward the light and developing weak, elongated stems.

Does 1 seed equal 1 plant? ›

In general, two to three seeds should be planted per hole. Seeds do not have 100% germination rates, so not every seed planted will sprout. Overseeding holes, cells, or pots will help ensure that the number of plants you desire will grow (or more. Don't exceed three seeds per hole.

Do you plant all the seeds in a packet? ›

If only a few plants are needed, it is not necessary to plant all the seeds in a packet. Surplus seed often can be saved for a later planting date. Keeping seed dry and cool or at least at room temperature in a closed container is best.

Do I need a heat mat to start seeds? ›

While your lettuce seeds may germinate just fine in an unheated room or shed where the temperatures range from 40-65℉ in the Spring, other gardening staples will not. Tomatoes, for example, rarely germinate below 75 degrees. To start these properly you will need to warm the soil using seedling heat mats.

Do you water seeds after planting indoors? ›

You won't have to water after they are planted, preventing seed movement. Create a mini greenhouse by covering the seed tray with a plastic tray or plastic wrap. This will keep the moisture and warmth inside, and you shouldn't have to water again till after the seeds have germinated.

Should you soak seeds before planting indoors? ›

By soaking the seed, it enables the new growth from the inside to push through the hard shell and grow. The seeds that could benefit from a good soaking include: corn, pumpkin, beans, chard, beets, and peas. The seeds you shouldn't soak include: carrots, lettuce, radish, celery, turnips, and spinach.

How many seeds should you plant per hole? ›

A pencil is a handy tool to make a hole and determine the correct depth. You can measure the point of the pencil ahead of time to denote a quarter or half inch. Place your seeds in the hole and bury them. Usually, you want to plant two or three seeds per hole because not every seed will germinate.

Do I need grow lights to start seedlings indoors? ›

The natural light from a window is seldom enough for good, strong seedling growth. They will usually stretch and lean towards the light and will not produce sturdy plants. Sowing seeds indoors under fluorescent lights is the easiest way for the home gardener to control growing conditions and grow healthy transplants.

What is the best medium for seed starting? ›

Combine compost, topsoil, a bit of coarse sand, and something like vermiculite, perlite, or coco coir until you have a mix with a consistency that holds together when wet. For seed starting, you'll avoid using as much sand as you would when making soil for your garden.

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