Creating a constellation-themed outdoor plant box is a magical way to bring the cosmos to your garden. To achieve this celestial vibe, focus on plants with star-shaped flowers or silvery foliage that mimics the night sky. Here are the best plants to include:

1. Star Jasmine (Trachelospermum jasminoides) – Its delicate white star-shaped blooms and sweet fragrance evoke a starry night.

2. Moonflower (Ipomoea alba) – These large, white blooms open at dusk, perfect for a night-blooming constellation theme.

3. Silver Dust (Jacobaea maritima) – Its silvery leaves resemble distant stars and add a shimmering effect.

4. Starflower (Borago officinalis) – Bright blue star-shaped flowers that attract pollinators and enhance the celestial look.

5. Lamb’s Ear (Stachys byzantina) – Soft, velvety silver leaves that mimic the Milky Way’s glow.

Pair these with small solar-powered fairy lights to mimic twinkling stars, and your outdoor plant box will feel like a slice of the cosmos. Happy gardening!