Plant tomato seeds: Find easy and fun methods for both US and UK with this simple guide!

by Leanne Edwards

With the economy rising and prices too, it’s no wonder you’ve thought to look online for alternative options on how to save yourself some money. Not to worry, I’ve got your back! Look no further, the following information will assist you in having your own home-grown garden whether it’s indoors or outside! Interested in how to plant tomato seeds, are you? Well, let’s give it a try, shall we!

How to grow tomato plant from seeds?

plant tomato seeds from scratch savde money

So you’ve decided to try to grow and enjoy your own fresh fruits, and you’ve chosen to start with tomatoes, but it’s just not working out? Are you sure you are doing the right thing? Let me guide you through on how to get your tomatoes on the move! These next steps are going to help you on your juicy red fruit journey! Here’s what to do and what you will need to gather:

You are going to need:

  • What containers to sow your seeds in? Soil pots or plastic cell containers (you can go for the plastic or biodegradable type).
  • Healthy, fertile potting soil – make sure to check on the packet that you have the right sort
  • Chosen tomato seeds-Garden centres and online have a large variety.
  • Spray bottle for water.
  • Plant markers if you will be planting more than one type of tomato.
  • Thermometer- The best temperature for growth is from 65 °F to 85 °F (18 °C – 29 °C) for germination.
  • Optional-(If planting indoors, there are heat mats and grow lights available)

growth stages plant tomato seed


I’m feeling confident! How to tell if tomato seeds are viable?

The easiest way to find out if you are going to have successful seedlings before planting is this:
Take your chosen seeds, fill a container or glass with water and put the seeds in. Leave them there for around 10 minutes. If they sink, plant them. If they float, get them out of here!

windowsill tomato plant seeds growth
Bear in mind, your seeds are going to need to live in a warm but humid place. This will allow them to sprout. There are, of course, options for in case you don’t have a garden, and you’re growing them indoors.

tomato seeds in pots starting growth
Here’s what to do:

  • Step one: Fill a pot with soil
  • Step two: Water the pot lightly
  • Step three: how to plant tomato seeds in a pot? Gently position 2 to 3 tomato seeds on top of the soil.
  • Step four: Place your seed trays in a sunny spot, such as a window ledge or veranda, when planting tomato seeds indoors. If you are lucky enough to have a garden, you may have a green-house.

Important information you don’t want to miss out on!

When to plant tomato seeds in the UK:

Inside: late February to mid-March
Outside: late March to early April

When to plant tomato seeds in the US:

Inside: late February to mid-March
Outside: late March to early April

All tucked in and ready to grow!

first little tomato growth plant seeds
Just as a mother hen keeps her egg warm and safe -you need to do the exact same thing with your seeds! The easiest way to know how to tell if a tomato plant is under watered is to touch the soil and check the leaves. If they are looking slightly wilted, your little ones are thirsty. Remember: Tomato plants require 1-1.5 inches of water per week, house grown ones need a little spritz of the spray bottle twice daily to keep them healthy. If, for some reason, they do start to wilt – just give them a drink. They’ll spring right back up.

Time to fly the nest, well, pot…

tomato plant seeds ready for garden
I bet you are wondering how to plant tomato seeds outdoors Now, If your growths are now about 3 to 4 inches /10 cm tall, you can successfully transfer them into your garden. Something to lookout for either outside or indoors is limpness. What I mean is, if you see that they are falling sideways or drooping down, this can easily be fixed. What you will need are some sturdy poles, or even sticks work. These need to be tied to your plants carefully so that you don’t snap the stem in the meanwhile.

tomato seeds plant green and red salad
At around 10–12 weeks, you can expect to see your beautiful creations all red and plump! This is the time to harvest your crop and get that salad bowl out. If you aren’t careful and leave them too long, you’ll end up with tomato juice instead. The reason you need to pick them when they are ripe is because if left too long, they may split and go bad. You definitely don’t want all your hard work going down the drain.


Well, hopefully this article helps you become a real “green fingers” and that will save your household quite a bit of cash in the meantime. Enjoy making scrumptious salads or even delicious homemade tomato sauce from fresh tomatoes!

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