Making seed balls is very simple and a great activity enjoyed by young and old.  

Seed Ball Recipe

  • 2 parts soil. Do not use good quality soil, wildflowers have evolved over millennia to adapt and grow best in poor quality soil.
  • 5 parts clay mix, (as London is built on clay it is easy to find!)
  • 1-2 parts water
  • 1-2 parts seeds
  • Large tub to mix ingredients

Directions

  1. Mix the soil, clay and 1 part water thoroughly. There should be no lumps. Slowly add more water until the mixture is the consistency of bread dough
  2. Add seeds. But not too many!
  3. Keep kneading the dough until the seeds are well mixed in.
  4. Add more water if necessary.
  5. Take small bits of the clay mixture and roll into balls about one inch in diameter.
  6. The balls should hold together easily. If they’re crumbly, add more water.

Have a great day!

Also useful

Bowl of water to rinse hands and towel to dry hands with

We always have some vinyl gloves for those who do not want to get their hands dirty.

Tips for Community Seed Ball Making

To source your wildflower seeds the simplest approach is to buy a wildflower mix. To offer more choice and to get the chance to explain the important of  these flowers for pollinators you can buy a variety of seeds and offer them in small bowls for people to choose their mix or single type, a photo of the flower helps for those who do not know flower names. We believe it  is important to only sow native wildflowers and made sure all our supplies were following the Flora Locale & Plantlife’s Code of Practice. They provide a list of suppliers.  

It is important to explain to those making the seed balls that not many seeds are needed, kids tend to way overload and grab a fistful of soil mix making a tennis ball size which is far too big, explain that too many will not grow as they all need space. 

It's a good idea to make a few ahead, to show the finished product and correct size. Often people will try and make their seed balls too large.

We have found it easier to make up a few containers of the soil mix, and have the seeds in a small container to top up when empty. 

We have a table: soil at one end, people take a small bit, roll it in their hands then flatten it, choose and scatter seeds over flattened mix then roll it all together.  

Supply small paper envelopes/bags brown paper which the care instructions can be written, and if you offer a selection of seeds they add the names of the ones they have selected. 

Using your Seed Balls

We generally ask people to plant some in a designated area at the event, and to take some home. 

One project we've seen prepared a low bank and then encouraged people to throw their seed balls at the bank. Other ideas include scattering the seedballs in patterns.

Tell your seed ball makers to just drop the balls in an place where there is no grass to compete and loosen up the surface of the area, a fork works well, if weather is dry sprinkle them with water, keep an eye on them and water every 10 days if no rain happens.

Seed balls are much more successful where the soil has been prepared as if for normal seed sowing or in pots. 

You can read more about different ways to use seed balls on our Wildflowers For Londoners project

Please Respect London’s Existing Natural Communities

#WildflowersForLondoners seed balls are to be used to bring colour, beauty and wildlife to all our streets, balconies, gardens, schools, workplaces and shared spaces that make up London.

They are not to be used in or near where wild plants and flowers are already established. They should not be used within or near a nature reserve, a Royal Park, open countryside, or any protected areas. Derelict-looking "brownfield" sites can host important insects and wildlife which have found sanctuary from development elsewhere. These communities may be unique, and we should leave them alone & celebrate them. If in any doubt, then please find another location.

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