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Colorful celestial terracotta planter decorated with raised sun, moon, stars, turquoise trim, and gold accents, holding a lush green fern.

A Little Pot of Moonlight: Colorful Celestial Planter DIY

Have you ever looked at a plain terracotta pot and imagined it glowing with moons, stars, and golden celestial details?

In this tutorial, Donna from Mason Creations etc. turns an inexpensive flowerpot into a bright celestial planter filled with dimensional clay accents, a blended night sky, shimmering moons, sparkling stars, and an antiqued gold finish. She also demonstrates how to seal the terracotta so it can safely hold a live plant.

Watch the video below to see Donna create the complete celestial planter, then follow the steps to make your own.

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Materials You Can Shop Here

You can shop the featured finishes and supplies below, then use the tutorial steps to bring the project together.

          Also Needed

          Terracotta planter.

          Step 1: Seal the Terracotta Pot

          Terracotta is naturally porous, so water can travel through it and damage the painted finish. Begin by applying Polyvine Exterior Extreme Varnish to both the inside and outside of the pot.

          Donna applies three coats inside the planter, allowing approximately one hour between coats. She adds one initial coat outside because more protective layers will be applied as the project progresses.

          Allow the final coat to dry thoroughly before adding the decorative pieces.

          Step 2: Create the Molded Clay Trim

          Press DAS air-dry clay firmly into your chosen silicone mold. Scrape away the excess clay with a palette knife and smooth the back with a little water.

          Place the filled mold in the freezer for approximately 20 minutes. The cold clay becomes firm enough to release without stretching or breaking the detailed design.

          Remove the clay from the mold immediately after taking it from the freezer. Let it soften for a few minutes before attaching it to the planter.

          Step 3: Attach the Clay While It Is Flexible

          Apply tacky glue to the back of the molded clay and position it around the upper edge of the pot. Attaching the clay while it is still damp allows it to bend and conform to the curved surface.

          Use a clean, damp brush to remove any glue that squeezes from beneath the clay. Press the edges down gently so the design makes full contact with the pot.

          Painter’s tape can be placed loosely over the trim to prevent it from sliding while it dries. Allow the clay to dry overnight.

          Step 4: Fill Any Gaps

          Air-dry clay may shrink slightly as it dries. Small spaces between adjoining trim pieces can be filled with texture paste.

          Press the paste into each opening with a palette knife, then smooth it with a damp brush. Let the repair dry before continuing.

          Step 5: Add the Sun, Moon, and Stars

          Create additional molded clay pieces featuring celestial shapes such as suns, moons, and stars.

          Glue the pieces to the pot while the clay remains flexible. Because the embellishments project from the surface, allow each section to dry completely before turning the planter to work on another side.

          Step 6: Paint the Ombré Night Sky

          Prepare three shades of blue: a light blue, a dark blue, and an even deeper shade created by mixing a little black into the dark blue.

          Use a separate damp sponge for each color. Begin with the lightest shade at the bottom of the planter, blend the medium blue through the center, and apply the darkest shade around the top.

          Move back and forth between the colors until the transitions appear soft and blended. Continue the darkest blue approximately one inch inside the rim, stopping near the future soil line.

          Step 7: Protect the Painted Background

          Before painting the raised clay pieces, apply a coat of Polyvine Exterior Extreme Varnish around the embellishments.

          This creates a protective barrier over the ombré background. Accidental paint marks can then be wiped away more easily with a damp cloth.

          Allow the varnish to dry for approximately one hour.

          Step 8: Paint the Celestial Details

          Repaint the clay embellishments with white chalk paint to cover any blue paint left from the background.

          Once the white base is dry, add bright colors to each design. Donna paints the sun yellow with touches of orange, gives the moons a soft neutral shade, and uses purple, fuchsia, turquoise, blue, orchid, and pink across the stars.

          Paint the upper molded trim in a coordinating turquoise or blue shade, then allow everything to dry.

          Step 9: Prepare the Surface for Antiquing

          Apply another coat of varnish over the entire decorated pot.

          A satin or glossy surface is important before antiquing because it prevents the glaze from immediately soaking into the paint. This gives you time to remove the excess while leaving color inside the recessed details.

          Let the varnish dry before applying the antique glaze.

          Step 10: Mix and Apply a Custom Antique Glaze

          Combine glazing medium with a few drops of acrylic paint. Add a little water for a thinner consistency and a longer working time.

          Brush the mixture over the molded details and wipe it away immediately with a soft, dry cloth. The glaze will remain in the cracks and crevices, making the raised patterns easier to see.

          Allow the antiquing glaze to dry for several hours.

          Step 11: Add the Starry Sky

          Thin a small amount of white paint with water. Load the mixture onto a fan brush and lightly tap the brush handle to create tiny splatters across the blue background.

          These scattered dots resemble stars in the night sky. Wipe any unwanted splatters from the clay embellishments with a damp cotton swab.

          Step 12: Add Shimmer to the Moons

          Brush pearlescent glaze over the moon embellishments to create a soft, satin-like glow.

          Apply a thin, even layer so the painted color remains visible beneath the shimmer.

          Step 13: Make the Stars Sparkle

          Mix Polyvine Glitter Paint Maker with a small amount of varnish. Donna uses approximately equal parts glitter and varnish.

          Brush the mixture over each molded star. The varnish holds the glitter securely and seals it so loose sparkles do not fall from the finished project.

          Allow the glittered areas to dry for about an hour.

          Step 14: Seal the Finished Planter

          Apply Polyvine Exterior Extreme Varnish in a satin finish over the decorated planter. This protective finish offers strong resistance to water, ultraviolet exposure, chemicals, and everyday wear.

          Seal the matching saucer using the same process. Donna leaves the underside of the saucer unpainted and unsealed so occasional moisture can evaporate.

          Allow the finish to cure fully before adding a live plant. Do not place the planter in a dishwasher or allow it to remain in standing water.

          Step 15: Add the Golden Highlights

          Once the final varnish has dried, lightly rub metallic gold Décor Wax over the raised areas of the clay embellishments.

          Use only a small amount and keep the wax on the highest points rather than pushing it into the recessed details. This creates a soft golden glow while preserving the antiqued shadows.

          Décor Wax does not require an additional sealer, so it should be the final product applied. Let it dry for several hours, then buff it gently to bring out the shine.

          A Celestial Planter Filled with Color and Sparkle

          This project shows how a simple terracotta pot can become a detailed decorative planter using molded clay, blended paint, antiquing glaze, glitter, metallic wax, and a durable protective finish. The layers of blue create the feeling of a night sky, while the colorful stars and golden highlights give the piece a warm, whimsical personality.

          A special thank-you to Donna from Mason Creations etc. for sharing this creative tutorial and demonstrating each technique so clearly.

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          Posted on June 25, 2026
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