Microgreens grown on paper towels are a great way to put healthy homegrown sprouts and herbs on your table year round.
Here today we will show you several different methods to grow Microgreens on paper towels.
Growing Microgreens on paper towels is a great way to produce greens year round with a minimum amount of difficulty and effort.
Most people have at least heard of growing Microgreens at home. And on of the reasons is of course that it is really easy to get started.
But there is one major downside to using a paper towel compared to for example soil.
Whereas soil retains moisture well, paper towels will dry out unless you water or spray sometimes as often as 2-3 times a day.
It may not seem like a big deal. But it is easy to forget and end up with a poor harvest.
Here today I will give you step-by-step instructions on how to build the following systems mostly using a few things you will find at home.
Click the links below to go straight to the step-by-step guides.
- Basic Microgreens on paper towels system
- Self-watering Microgreens on paper towels system (2 examples)
But before we get building, what is the big deal about growing Microgreens at home?
- What are Microgreens?
- Growing Microgreens using the paper towel method
What are Microgreens?
Microgreens are essentially sprouts of herbs and vegetables that are harvested before they can mature and develop into fully grown plants.
Microgreens are also called “baby greens” and are harvested by cutting the young sprouts with stem and all around the first true leaf stage.
You plant the seeds and wait for true leaves to sprout. Harvesting Microgreens usually occurs as the sprouts reach 3-10 cm (1-4 inches).
Some varieties of Microgreens like wheatgrass, kale, and coriander (cilantro) will grow back whereas most do not and need to be replanted after harvest.
Is growing Microgreens expensive?
Not really as your only real cost is the expense of seeds. It could of course get expensive if you chose to buy small packages at retail.
But it makes a lot more sense to buy in bulk or even harvest your seeds. And for most Microgreens you will find that seeds are plentiful and do not have to cost much.
Most gardeners already know to harvest their own seeds from many herbs and vegetables. There are also many seed exchange platforms where gardeners share and exchange.
But even if you do buy seeds in expensive small packages, you have to remember that microgreens deliver the possibility of homegrown microgreens on your table year-round.
And, yes, that is a big deal if you live in a part of the world where natural light is scarce for 4-6 months per year.
Microgreens allow you to produce homegrown greens when conditions outdoors are too dark, cold or wet to grow any above ground herbs or vegetables.
Growing Microgreens is fun, fast, and easy
Most Microgreens will germinate in a couple of days and be ready to eat in as little as 1-2 weeks.
And it is truly fascinating to follow the germination process up close.
As Microgreens start growing quickly it is better to use many small containers rather than 1 big tray.
Succession plant your Microgreens and you will always have fresh plants for salads, smoothies, stir fries or sandwiches.
The name of the game is fresh plants and you should adopt the mindset of “garden to table” where you snip them before they turn green. As the whole plant or sprout is edible, you can tear the Microgreens without worrying about hurting the fragile roots.
Microgreens can be dried or stored fresh in the fridge for up to a week but as they grow fast there really is no need. Instead, grow Microgreens by starting a couple of smaller grow beds with a day or two in between planting. You will soon find plenty of fresh green plants “on tap”.
And believe me, it is a lot cheaper to grow Microgreens than to buy them at the local grocery store where Microgreens can be quite expensive to buy.
Grow Microgreens, as they are good for you and taste great
Microgreens have been coined a Superfood and are listed as a “health-promoting strategy to meet dietary reference intake requirements for essential elements beneficial to human health.” by Science Direct.
And on top of being good for your health, Microgreens taste great and can be grown year-round – and even indoors when needed.
My 5 favorite Microgreens to grow
I grow Microgreens for table greens to eat. And I do have my favorites among the many available varieties.
These are my favorites in alphabetical order.
- Basil (fast grower and lots of flavor)
- Coriander/Cilantro (a bit slower to grow, but I do love the intense flavor)
- Pea (fast grower, sweet taste, great texture, and prolific grower)
- Sunflower (nutty taste and crunchy texture, choose the black sunflower seeds)
- Wheatgrass (fast grower, health benefits, I need to mix with other juices to drink)
We grow lettuce in our Ebb and flow hydroponics grow system. Otherwise we would have added lettuce to my list. Broccoli is another favorite that almost made the list.
Growing Microgreens using the paper towel method
You can grow Microgreens using soil, coconut coir, grow mats, and many other mediums. And the soil is probably still the most widely used as it is what we “always use” for any type of gardening.
But when it comes to growing Microgreens I still find that paper towels are the best choice – unless you are planning to grow commercially to make money from Microgreens.
Here I will give you 3 examples of techniques to use to grow Microgreens using paper towels.
1. Your basic Microgreens on paper towels method
- A grow bed (any food safe tray including a porcelain plate will do)
- Paper towels (thicker is better but you can always double)
- Water (tap water is fine)
- Spray bottle
1. Find a suitable tray to use as grow bed:
Use a shallow grow bed, as the young plants you grow never will develop deeper roots. Also, a shallow garden bed will ensure that the Microgreens have good access to light and good air circulation. I have successfully used porcelain plates as well as oven dishes.
Another good alternative can be the plastic containers you get from the grocery store when you buy fruits or vegetables. Just wash them thoroughly before use.
Where I live, it is hard to grow grapes. And I have found that the plastic cups I get when I buy grapes are ideal.
Any grow bed will do as long as it:
- has an edge to hold in excess water
- is not deeper than 3 cm (1 inch)
- is made from a food-safe material
2. Place a paper towel in the bottom of grow bed
Use your hand-eye coordination to tear off a piece of paper towel that is about the size of the bottom of your grow bed.
Double up the layers as needed. You want the layers of paper towel to be thick enough to cover your hand completely if held up against the light. The paper towel needs this degree of thickness to retain the correct moisture level even under warm conditions.
You want the paper towel to cover the entire bottom of the container. Any excess paper is folded underneath to create a smooth surface.
3. Soak paper towels
Use a spray bottle to soak the paper towel until it is saturated.
4. Sprinkle seeds over the paper towel
You can be generous when you sprinkle the seeds over the paper towel.
Usually, when you plant, you want to allow enough space for each seed to grow and develop into a young plant. But with Microgreens you do not have to worry about each seedling getting enough space, nutrients or water from the soil. After all, you are growing Microgreens and will harvest the plant long before this stage of development.
Press the seeds gently to ensure there is contact with the paper towel to help your seeds root properly. Seeds that are not in contact with the paper towel may struggle to germinate.
I usually sprinkle the seeds like in the photo below. I prefer to have several trays or grow beds with Microgreens on the go at the same time. You could say that I succession-seed a new batch of Microgreens to always have enough to harvest at any one time - but rarely so much that we need to store to eat later.
5. Keep moist until harvest
Now you wait for the germination process to start and the sprouting of first leaves.
Sprouting is faster in warm condition why it can help top cover the grow bed with a plastic bag.
Your only job at this stage is to make sure that the paper towel does not dry out.
Place smaller grow beds in the kitchen. If you have no room in the kitchen choose a room with natural light if possible.
If you grow during the darker times of the year you will have richer harvests if you provide extra lighting. A grow light is of course ideal but use what you have.
Why not just place the container in a room where you always have the light on during day time. It does not have to be more complicated.
Make sure that the room is not too hot. Regular room temperature works great.
What are the Pros and Cons with the basis setup
The advantages are of course that it is easy to start and does not cost a lot. It is also a lot of fun to follow the Microgreens as they germinate and grow into seedlings to harvest.
The main disadvantage is however that you will have to add water to the grow bed quite frequently. And when I say frequently I mean up to 2-3 times a day under warm conditions.
And this is also why I always advocate the self-watering system using regular milk cartons or plastic fruit cups from the store.
2. Self-watering Microgreens on paper towels system
With the self-watering system we still use paper towels as our grow bed. But we also use the paper towel to transport water to our grow bed from our reservoir.
And it is easy to build. I will show you two ways to build a self watering system.
- A milk cartoon or a plastic fruit cup
- Scissors or a sharp knife
- Paper towels (thicker is better but you can always double the layers)
- Water (tap water is fine)
We take for granted that you are all adults and know to be careful when using scissors or knives. Milk cartons and plastic containers can be tricky to work with so please take it slow and be careful.
Self watering Microgreens system using a milk cartoon
- Rinse an empty milk carton
2. Cut off one side following the pattern indicated by the line in the photo below
3. Cut two lines in the cut off side – see below.
4. Tear off a length of paper towel and thread it through the cuts
5. Fill the remaining reservoir with water (⅔)
6. Place cut off side on top of the reservoir and place excess paper towel inside the reservoir. As you can see from the photo the excess paper inside the milk carton will absorb water and keep the grow bed moist.
7. Place fresh sheets of paper towel on the cut off side on top of the already inserted paper towel. This fresh sheet will be your grow bed.
8. Spray paper towel with water
9. Sprinkle your seeds
10. Grow bed will keep moist but do check back every day or so to top up water level in reservoir as needed
Self watering Microgreens system using plastic cup
Using a plastic cup follows the same principle as using a milk carton.
The main difference is that you will use the lid of the plastic cup as the grow bed.
1. Wash the empty plastic cup and lid thoroughly
2. Cut two lines in the lid about 3 cm (one inch) inside the edges
3. Tear off a couple of sheets of paper towel and thread it through the cuts
4. Fill the container with water (⅔)
5. Place the lid inside the cup and let the excess paper towel sit inside the reservoir/cup in the water
6. Put fresh paper towel on top of the grow bed/lid
7. Spray the paper towel and sprinkle your seeds
8. Moisten the seeds lightly
Pros and Cons with the self watering system
The main advantage of the self watering system is of course in the name. You do not have to water up to 2-3 times per day to keep the seeds and seedlings healthy and thriving.
There are no real disadvantages apart from the fact that it is a little bit more work to get started.
If you use the plastic cup setup you will be able to use the same container many more times.
The milk carton will however break down over time and should always be placed on a surface that can hold water in case of leakage.
Sources: https://www.sciencedirect.com/science/article/abs/pii/S0889157516300448 https://edis.ifas.ufl.edu/publication/HS1164