Inspired by the GRAFT Garden at National Waterfront Museum? Seed bombs are a great way to spread flowers and brighten up your garden. They are quick, simple and lots of fun to make.

You will need:

• Air-drying (potter’s) clay
• Compost
• Seeds
• Water
• Egg carton or other container

Instructions:

1. First you need some clay. You can make the bombs any size you like, but smaller ones work best. A piece of clay roughly one inch in diameter works well.

2. Add equal amounts of soil and seeds to the clay. You’re aiming for a ratio of around 5 parts clay to 1-2 parts soil and 1-2 parts seed.

3. Use your fingers to squash everything together so that the seeds and soil are distributed throughout the clay. If the mixture is crumbly then add a few drops of water.

4. Roll clay into ball (or whatever shape you like) and you have yourself a seed bomb!

5. Find somewhere to store them. Old egg boxes make great containers.

6. The next step is to allow the seed bombs to dry. You need to do this for at least 24 hours, either next to a window or in a dry outdoors area such as a garden shed.

7. Now you need to decide where to throw your seed bomb! For best results, find somewhere in your garden that gets a lot of sun. It works best if the bombs land on disturbed soil.

8. If you’d prefer you can plant them in plant pots (one bomb per pot) or in a window box (up to four per box). There is no need to bury them under soil, just sit them on the surface.

9. Don’t forget to water your plants! You should start to see seedlings after roughly two weeks