In South Carolina, May brings warm temperatures and plenty of sun, so your window box flowers need to handle heat, humidity, and possibly full sun exposure. Brighten your home with charming flower choices for window boxes in this climate and season.
Sun-Loving Flowers (Full to Partial Sun)
1. Petunias – Hardy and colorful, great for trailing over edges.
2. Calibrachoa (Million Bells) – Like mini-petunias, great heat tolerance.
3. Lantana – Very heat- and drought-tolerant, attracts butterflies.
4. Verbena – Blooms abundantly, loves the sun, and resists mildew.
5. Portulaca (Moss Rose) – Succulent-type plant, thrives in hot, sunny areas.
6. Zinnias – Bright and cheerful, perfect for hot weather.
Shade-Tolerant Options (If Your Window Box Gets Partial Shade)
1. Impatiens – Great for shadier spots, lots of color options.
2. Coleus – Grown for its vibrant foliage; thrives in shade to partial sun.
3. Begonias – Especially wax begonias and dragon wing varieties do well.
Good Filler or Trailing Plants
• Sweet Alyssum – Fragrant, low-growing filler.
• Bacopa – Lovely trailing flower for edges.
• Ivy Geraniums – Cascading blooms for a classic look.
Ensure your window boxes consistently have good drainage and water, especially during the hot summer months.