How to Make a Seed Bomb

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Introduction: How to Make a Seed Bomb

Do you hate those blank vacant lots on the side of road and city streets? Have you wanted to put a flower garden in one of those lots but have been afraid of being arrested? Do you not have the money to buy all those flower transplants? Is the lot just to hard to get into? And think of how many times you have seen a bare plot with nothing in it or a neglected flower bed that you just wished you could plant on? Well the seed bomb is just right for you. The seed bomb is cheap compared to buying transplants, is natural and organic, easy to make, pocket sized, and you can easily cover a large area with seed bombs in a very short time. The seed bomb is also a great weapon in the guerrilla gardeners arsenal when the guerrilla gardener needs to quickly get the job done.

Step 1: Materials

All materials in this instructable are cheap or free, easy to find, and are natural and organic.


Clay from your area if available or if clay unavailable in your area you can use crayola air dry clay and is found in walmart for about $5.00 (used to protect the seeds from insects, birds, etc. that might eat them)
Water (For forming clay, do not water seed bomb when finished)
Seeds native to your area (Check with your local Nature Conservancy or your state's department of natural resources for which seeds/plants are native to your area)( buy seed mixtures of native flowers and plants. Not only will they grow well, they will not crowd out other plants, disrupt bird and insect populations, or do other environmental damage)
Compost or worm castings
Yogurt container top or any large flat surface


For the dried red clay mix 5 parts clay with 1 part compost and 1 part flower seeds, put some careful drops of water into the mixture(make sure not to make it into a goopy sloppy mess!), Knead with hands into a ball, flatten it out and cut to desired size. Now just make into a small ball and let it dry in the sun. Now you have a red clay seed bomb.


Step 2: Cutting

Cut a very thin piece of the clay

Tip: (The thinner you make it the easier you can press it down and shape it into a ball)

Step 3: Cutting (Continued)

Press down on a large flat surface (making it not paper thin but not as thick as a book)

Cut to about 2 and a half inches wide and 2 inches high

Step 4: Adding the Compost

Sprinkle the finest compost onto the clay and the more compost you put on the better the chance the seeds will germinate)

Step 5: Adding Seeds

Add about 2 seeds to the mixture (depending on the quality you think the seeds are)

Step 6: Adding the Water

BE CAREFUL ON HOW MUCH WATER YOU ADD!

Add just a few drops or it will become a sloppy mess that's almost impossible to take off ! The water will also help the compost stay inside the seed bomb

Step 7: Making Into a Seed Bomb

THIS IS GOING TO BE DIRTY!

Scrape off with your fingers the clay and roll into a ball and make sure you don't let the seeds go out of the seed bomb!

Step 8: Adding More Compost

To have a better chance of your plant in your seed bomb of growing put your seed bomb into a pot of compost and rub the compost in and take it out and rub it in again. You can keep repeating this process till about the 5th rubbing then you have most likely covered the seed bomb with the compost.

Step 9: Your Finished

Now just let your seed bomb air dry and your finished. You can fit about 9 seed bombs or more in one pocket (estimated from size 12 boys blue jeans) and if you multiply that by how many pockets you have in your pants, jacket, and even hat plus the number of people you bring with you then you have a lot of area you can cover with your seed bombs! Now throw your seed bombs of change into any vacant lot, neglected flower bed, or bare lot and don't forget to water your new brand new guerrilla garden!

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    333 Comments

    did we need to water the seed bomb after we throw 'em at the area??

    Easy to make and they work great. I never attracted and critters from these .

    Even though it might add a little bit to the expense of making the
    "bombs" couldn't you use catfish dough ball bait for the interior of the
    "bombs", perhaps the stuff with blood mixed in.

    1 reply

    I think that would attract critters who could eat them - and also it would not be as shelf-stable as the clay. You'd have a lot of happy mice and birds though.

    This is really great. Cool idea mate

    Cool that's just epic

    Ok, I know this is a bit old, but I have a thought. Even though it might add a little bit to the expense of making the "bombs" couldn't you use catfish dough ball bait for the interior of the "bombs", perhaps the stuff with blood mixed in.

    Cool that's just epic

    I saw this at a shop yesterday and was wondering how to make it! great!

    if your "planting" at the right moment, and right away, I soak my seeds ahead of time. Seeds need to soak up moisture and if you soak them over night they will germinate in days.. The seed will grow right out of the small ball, roots will go down and the plant will grow up. What you are doing is hiding the seed from birds and allowing it to germinate.

    You only dry them to keep your pocket clean, a damp ball tossed into the planting bed will sprout sooner. seeds need moisture and warmth, think spring! sunshine and rain

    To "I AM IN THE SHED"
    Amen, and Amen some more! Grammar aside, there is a fine line between giving enough instruction, and being too long-winded. Heaven forbid that the author of an "instructable" expects one of two things; that the reader has a certain level of intelligence and understanding to be able to complete the project, or that they will be able to simply ask the author a simple question to clarify things. Slamming someone never clears up confusion, and often adds to the problem.

    Ok, I know this is a bit old, but I have a thought. Even though it might add a little bit to the expense of making the "bombs" couldn't you use catfish dough ball bait for the interior of the "bombs", perhaps the stuff with blood mixed in. You could just stuff the seeds into the dough balls, then make little raviolis with them and the clay, and then coat the outside of those with compost? Another option would be to roll the dough bait in the seeds and then cover with clay. The dough bait would have moisture as well as a compost like composition ready to go.

    Going by the comments, a lot of people don't understand how these things work. Of course, the instructions don't explain it either. 

    The clay is there to protect seeds from being eaten, especially by birds. Birds won't eat things covered with clay or clay dust. So alternatives like papier mache wouldn't work (and would possibly be more expensive.) 

    The seed bombs shouldn't break open. In fact they should stay relatively intact even after they have been wet by rain a few times. That way the seeds stay protected and moist. When the seeds germinate, they will break through the clay. 

    They seeds don't need water right away. They will stay dormant until rain comes. If the seeds are the right for the area, then they will do fine. Of course, not every single seed will sprout. 

    But the comment about using plants that are native to the area is an important one. Buy seed mixtures of native flowers and plants. Not only will they grow well, they will not crowd out other plants, disrupt bird and insect populations, or do other environmental damage. 

    2 replies

    Your comment sounds alittle more than what appreciation for this project.. more like youre are tryin to justify urself and overly gradify urself in somone elses moment.. you mad at this guys idea that you didnt do it first?

    You’ve got to wonder about the wisdom of growing non-native vegetables as well. That thought never seems to come up, no matter where you look. If we stuck to those plants that grow here, in our own zones or areas, we would never infect an area with invaders. We would also, after awhile, not have to do much planting, as seeds would drop and spread by themselves. I am aware of horticulturists that are developing native plants (native to North America, since that is where I live), such as Apios americana, locust trees, and other food producing natives, to come up with varieties that produce more and better foodstuffs. That is a good idea.

    Panchito