How to Grow a Plaster Herb Garden

Introduction

I love to grow herbs and plants in my home, but I hate having to repot them. When you repot an herb plant, it takes a long time for the plant to regrow its roots, which can make your home feel less welcoming. Instead of replanting each year and wasting precious space in my kitchen cabinets with an empty pot, I decided to try something new: making plaster herb gardens! These homemade planters are easy to make and fun for kids too! In this post we will show you how we made ours (and how you can do the same), so that you can enjoy fresh herbs all year round without having to repot them whenever their roots get too big.

Get your materials together.

  • Gather your materials.

You’ll need:

  • A bag of plaster of paris (you can find this at a hardware store)
  • Water to mix with the plaster, about 1:1 ratio by volume
  • Herbs (plastic cups are great for this so you don’t have to water them every day or use soil and risk getting the herbs dirty). Some good choices for herb plants include mint, rosemary, and thyme. You can also use dried herbs from your spice rack if you prefer!

Pick one of the four molds to complete first.

You’ll want to pick one of the four molds to complete first. The easiest mold will be the one that you like the most, but it’s also important that it’s not too difficult. If you’re just starting out with plaster garden making, I recommend going with a simple design such as this Eucalyptus leaf mold or this little cactus. It will give you an idea of how to use hot glue and create texture in your garden and help make sure you don’t get discouraged by any mistakes or challenges along the way!

Place a plate or tray underneath the mold to catch excess plaster.

You can use a plate or tray to catch excess plaster. You can also use a small bowl, plastic cup, plastic bag or piece of cardboard. If you have any spare paper plates lying around the house then those work well too!

Determine how much plaster you need for your mold, and mix it with water in a plastic cup.

To determine how much plaster you need for your mold, and to mix it with water in a plastic cup:

  • You will need a plastic cup. It should be large enough so that the plaster can be mixed in it without spilling or splashing out. For example, if you want to make two molds of plants that are 2 inches tall and 1 inch wide, then use a measuring cup that holds 2 cups (or 2 quarts) of liquid.
  • You will also need water; however if you want to add color to your plant growing kit later on, then consider using colored water instead of plain tap water. To do this simply add food coloring or other dye products into the water before mixing with the plaster powder (as directed below). This is optional but recommended because it adds variety when growing multiple types of plants at once!

Pour the fresh plaster into your mold, and then tap the mold repeatedly until the plaster settles.

Now you’ll want to pour the fresh plaster into your mold and tap it repeatedly until the plaster settles. (Be sure not to let any of that plaster get into your eyes!)

You can use a plastic cup, brush, and popsicle stick to apply the plaster to your mold. If you have leftover plaster after you fill up the entire surface of your mold with layers of fresh wet plaster, scrape off any extra using a popsicle stick or other small wooden tool.

Let the excess plaster drip out of the mold back into the cup, so that you have enough space left to plant herbs inside.

Now you can pour the excess plaster back into your cup, so that there is still enough room to plant herbs inside.

Place the cup under your mold and then pour plaster into it until it is full with an even layer of plaster.

Once all of the herbs have been planted, remove them from their cups and place them in their respective holes (they will fall apart if you try to move them).

Use a feather to smooth out any air bubbles in the plaster.

  • Use a feather to smooth out any air bubbles in the plaster.
  • Use a popsicle stick to scrape off any extra plaster that has leaked through the drain holes.
  • Let the plaster set for 24 hours before you remove it from its mold.

After 15 minutes, take a popsicle stick and use it to scrape off any extra plaster that has leaked through the drain holes.

With your popsicle stick, gently scrape away any excess plaster that has leaked through the drain holes. The more careful you are here, the better it will look when it’s finished.

Once you have scraped off as much of the excess material as possible, take a damp paper towel and use it to wipe down both sides of your mold. This will remove any dust or debris from around the edges that might interfere with adhering plants to their new homes!

Let the plaster set for 24 hours before you remove it from its mold. Repeat this process with all four molds, until all four planters are complete.

Now that you have the molds and planters, it’s time to make sure they’re ready for planting. Let the plaster set for 24 hours before you remove them from their molds. After this initial drying period, repeat this process with all four molds until all four planters are complete and ready to be filled with soil and herbs!

It’s fun and easy to make your own planters!

  • Plaster is a great material for making planters.
  • It’s easy to make and easy to use.
  • Plaster is durable and attractive.
  • Plaster is inexpensive and easy to find.
  • Plaster is easy to mold, shape, cut, and paint.

Conclusion

So what are you waiting for? Get out there and start making your own plaster garden!

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