One point to remember is that you should choose seeds that are native to your area. First, they will grow better with little or no care. Second, they will be appropriate for the birds and insects in your area. Introducing new plant species can be hazardous to the ecosystem in the long run, so make sure you check online or with your local parks service to make sure the plants you choose won't do any harm. Many times, park systems even have native plant seeds available for free or a nominal fee.
1. Either cover your work surface and the floor with lots of newspaper, or work outdoors. Wear old clothes and be ready to get a little dirty. Don't worry - it'll ALL wash off!
2. Mix the seeds with the compost. Gently stir in the powdered clay. Be careful not to mix the powdered clay to quickly because, while it's just clay, you don't want to breathe it in. (The clay isn't toxic, but your lungs don't need all that dirt in there!)
3. Add the water so the mixture is just moist enough to form into balls about 1" in diameter, or the size of a walnut.
**Don't use too much water. You run the risk of soaking the seeds too much and either starting them growing or rotting them. Using too little water, on the other hand, can lead to the balls crumbling apart. Try to get a consistency like play dough.
4. Set the balls about 1/2" apart on newspaper-lined baking sheets to dry. Depending on the humidity, it should take about 24 to 48 hours. You want to make sure they're completely dry all the way through before storing or giving.
If you're storing the seeds for your own garden, put them in a paper bag in a dry, cool, dark place. If you plan to give them away, there are tons of ways to make the gift look great. Here are a few ideas:
The possibilities are endless! Don't forget to include a list of the seeds included in the bombs and instructions.
**If you do not have access to the clay powder, try using air-dry clay. Here is what you will do if you use this option.
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
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.
Here is a website where you can watch step-by-step through photos, seed bombs being made.