Indoor Seed Starting Tips for Home Gardening (2024)

What is the best way to start seeds indoors? Well, that depends a bit on the type of seed and your access to gardening supplies. However, you can save money on gardening by starting your plants from seed. Here are some indoor seed starting tips for growing seedlings inside before the weather warms up enough for outdoor planting.

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Indoor Seed Starting Tips for Home Gardening

I have learned over the years that there are some plants that I can grow from seed and others that I just can’t. Starting your home gardening experience from seed has a lot of benefits. I decided to start researching a few indoor seed starting tips to get a head start on planting season.

It is MUCH cheaper to start growing your own food from seed than it is to have to buy your plants as seedlings from the nursery. You also have a much greater variety to choose from, including many heirloom and organic seed types.

When you buy plants from the nursery, the selection is often rather slim. Seed starting is not always easy, though. There are a lot of factors involved that will directly impact your gardening success. If you are considering planting a garden this year and would like to start your plants from seeds, here are a few seed starting tips and affiliate links that you might find helpful.

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Read the back of the seed package

There is a ton of very useful information back there. You will have to know what zone you live in and determine the best planting date for your region. You need to carefully time your indoor planting date so that the seedlings are ready at just the right time.

Rushing to get your seed in the ground will not ensure that your plants grow any faster. I highly encourage you to buy organic seeds but all conventional seed packets will have plenty of good information on them.

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Some seeds do not transplant well

Depending on what seeds you want to plant, you may need to start some of them inside under grow lights and others directly outside. You need to know which ones should be planted where! Tomatoes take a long time to go from seed to fruiting plant and do best when started early in an indoor, climate-controlled setting.

Cucumbers, beans, and peas go quickly from seed to harvest and can usually be planted directly in your garden depending on your zone. Invest in a good gardening book for your specific area to know which seeds to start inside. If you are starting seeds that don’t transplant well, consider biodegradable seed starting pots.

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Use seed sprouting soil

Many baby plants are very susceptible to diseases that can be found in regular old dirt. Use a soil mixture specifically designed for seed starting to ensure that you get the maximum amount of sprouting from your seed package. Sterilize your containers if you are reusing them from last year. You can also use disposable seed starting containers or make your own out of toilet paper tubes. You can buy seed starting mix on Amazon if you can’t find it at your local nursery.

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Sow your seeds carefully

Read the back of the package before your indoor seed starting begins to know how deep to plant the seeds and how far apart to space them out. Dampening the soil just a little bit before seed starting helps quite a lot. Just use your finger to make the hole for each seed if they are large seeds like peas or beans.

If you are starting with tiny seeds like carrots or lettuce you can make a long, narrow trough and just sprinkle them in. Once the plants start to grow, thin them out a bit according to the spacing directions on the package.

Baby your seeds

None of these indoor seed starting tips will help if you just stick them in the dirt and then ignore them. Keep your seeds lightly damp until they start germinating. If you are planting outside make sure you keep your eye on the upcoming temperatures and cover them if the weather will be too cold.

Seed starting directly in the garden can be a bit of a gamble since Mother Nature can be a bit fickle. This is one of the biggest benefits to starting seeds indoors. Check out the seed starting supplies on Amazon. They offer everything from grow lights to heat mats to help your seedlings get the best start in life.

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Fertilize sparingly

You want to wait to fertilize the seeds until after they have gotten their first ‘true’ leaves. Fertilizers can be a bit harsh and burn your plants if you add it too soon. Use a natural fertilizer like fish emulsion that you have diluted half with water.

Fertilize every 1 to 2 weeks until they are well established. When you start seeds inside in small containers, make sure you only use a very small amount of fertilizer.

Harden off your seeds before transplant

If you have started your seeds inside you will want to ‘harden them off’ before transplanting them into the garden. This just means that for a few hours a day for a week before you transplant, put them in a shady spot out in the yard for a few hours. They will get acclimated to sun, wind, and the general environmental conditions of your yard before going through the stress of transplant.

I hope these indoor seed starting tips encourage you to head out and buy yourself a few packets of seeds and start planting your garden! There is nothing more deliciously satisfying than picking food from your own backyard! Have any other indoor seed starting tips to share?

Want more gardening tips? Check out this post!

Eco Friendly Garden Ideas

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Diane Hoffmaster

Diane is a professional blogger and nationally certified pharmacy technician atGood Pill Pharmacy. She earned her BS in Microbiology at theUniversity of New Hampshire and has worked in cancer research, academics, and biotechnology. Concern over the growing incidence of human disease and the birth of her children led her to begin living a more natural life. She quickly realized that the information she was learning along the way could be beneficial to many others and started blogging and freelance writing to share this knowledge with others. Learn more about her HERE.

Indoor Seed Starting Tips for Home Gardening (2024)

FAQs

What is the easiest way to start seeds indoors? ›

A seed starting tray is the easiest way to start seeds indoors for beginners and expert gardeners. These cells are ideal since they are usually made of a porous material that allows for water absorption and roots, when big enough, to grow right through the walls.

When should I start seeds indoors for garden? ›

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

How warm does it need to be to 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.

Do you need special soil to start seeds indoors? ›

Don't try to save money by using garden soil. It is too dense for the job and contains weed seeds and possibly pathogens. If you grow a lot of seedlings and also do container gardening you might want to invest in a large bag or compressed bale of commercial soilless growing media.

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 you soak seeds before planting indoors? ›

If you're storing and sowing seeds inside, they won't go through a cold winter, which some need to signify it's time to wake up and grow. To ensure high germination rates, wake seeds up, and potentially speed up the process, soak seeds before sowing them to soften and loosen that outer protective layer.

How often do you water starting seeds indoors? ›

Most seedlings require water every day or every other day. First, check the soil moisture using your finger by checking the soil color near the drainage hole. If the soil feels or appears dry or brittle, irrigate thoroughly until water pours out of the bottom of the tray, then stop.

What happens if you start seeds indoors too early? ›

But, starting your seeds too soon is still a problem. How? Seeds sown too early will result in bigger plants which then need to be potted up into bigger containers which quickly take over your seed starting area/house and cost you more money is potting soil, organic fertilizer and pots.

What is the best soil for starting seeds indoors? ›

Commercial seed-starting mixes, usually composed of vermiculite and peat, without any true soil, are recommended for starting seeds. They're sterile, lightweight and free from weed seeds, with a texture and porosity especially suited to the needs of germinating seeds and tiny seedlings.

How to start seeds indoors without grow lights? ›

First, identify and prepare a space where you will place your starts that is close to a window (preferably with southern exposure for best chance of success) Then fill seed starting trays or containers with seed starting mix or put together your soil blocks and place into 1020 trays.

Should you water seeds right after planting? ›

Using a small plastic tub or tray, add in your soilless mix. Then pour in just enough water to saturate it to “wrung-out sponge” wetness. The idea here is that the soil is already moist when you plant your seeds, so you don't have to worry about watering for a few days.

Can I plant seeds directly in potting soil? ›

Although potting soils may be used to start seeds, they tend to have a more coarse texture and may contain field soil, compost or composted manure along with vermiculite, peat moss or perlite. Some seed-starting or potting mixes may contain fertilizer as an additive.

Is Miracle-Gro potting mix good for starting seeds? ›

Help seeds germinate by sowing them in Miracle-Gro® Seed Starting Potting Mix. This is finer than a regular potting mix, so young roots have an easier time of poking through. It mostly contains lightweight peat moss—a texture that allows air to move through while retaining a uniform amount of moisture.

What is the cheapest way to start seeds indoors? ›

It's very possible to create an affordable seed starting setup without fancy equipment! You can successfully sprout seeds in things like egg cartons and yogurt cups. Soil for seed starting can be collected from your garden and baked so that it's sterile, and you can use inexpensive shop lights as grow lights.

Can you use egg cartons to start seeds? ›

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.

Which seeds to start indoors first? ›

Where to Start

Seeds that are typically started indoors include long season crops, like eggplants, okra, tomatoes, broccoli and kale. Some plants do not fare well as transplants or need to be transplanted at the right stage of growth so they aren't stunted by stressors.

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.

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