Resilient, vibrant, and perfect for warm weather, these flowers thrive under the sun
By: Mónica Corredera, Carolina Urquiola
JUNE 19, 2025 4:22 PM EDT
Hot weather is here, and while some plants struggle in rising temperatures, others bloom beautifully in the sun. With heatwaves becoming more frequent and intense, it’s essential to adapt your garden with plants that flourish in warm climates, especially if you're looking to enjoy bold colors all summer long. But what makes a plant perfect for hot weather?
Start by choosing varieties that thrive in full sun and require less water. Ideally, opt for species that bloom for long periods, those that not only withstand extreme temperatures but also resist drought. Some, like calendulas, even repel pests, an extra bonus for any garden.
Soil is another key factor. Well-drained soil is crucial to avoid waterlogging. Rocky or sandy soils are best, as they dry quickly and prevent excess moisture. And don’t forget: while some plants like roses prefer slightly acidic, well-drained soil, others such as lavender and rosemary thrive in dry, alkaline conditions.
To ensure abundant blooming, enrich the soil with organic matter—this keeps your plants happy and healthy. Now, let’s dive into 10 perfect plant options for the hot season and how to help them thrive.
A Seasonal Classic Geraniums (Pelargonium spp.) are a summer favorite, often found on balconies and garden beds. They’re sun-loving, heat-resistant, and easy to maintain. Give them at least 6 hours of sunlight a day, water regularly but moderately, and fertilize during the growing season for best results.
Rustic Elegance Loved for its fragrance and wild charm, lavender (Lavandula officinalis) is a Mediterranean native that thrives in heat and full sun. Once established, it needs very little water. Bonus: lavender attracts pollinators like bees, which boost your garden’s overall health.
Pure Flower Power If vibrant color is your goal, gazanias (Gazania x hybrida) are a must. Native to Africa, these sun-loving flowers come in bright shades of yellow, orange, red, pink, and white. They need at least 6 hours of sunlight and well-drained soil to avoid root rot.
A Climbing Star For a touch of tropical drama, bougainvillea (Bougainvillea spp.) delivers lush, vivid blooms and thrives in high temperatures. This hardy climbing plant needs minimal watering once established. Train it on a trellis or wall and enjoy its low-maintenance beauty.
Simple & Stunning Petunias (Petunia x hybrida) are a go-to summer bloom for gardens and terraces. With flowers in purple, pink, red, yellow, and white, they add cheerful color all season. They love the sun (5–6 hours daily) and need regular watering to thrive.
Timeless Favorites Roses come in countless varieties and are surprisingly tolerant of warm weather. They offer continuous blooms throughout summer, provided they receive regular watering and protection from pests and fungal infections, especially if planted in partial shade.
Bold & Beautiful Native to Mexico, dahlias (Dahlia spp.) are known for their large, show-stopping blooms. They flourish from mid-spring to fall and prefer plenty of light—though partial shade during the hottest part of the day is ideal. Water at the roots, not on the blooms.
Tropical Flair Whether planted in the ground or in a pot, hibiscus brings an exotic burst of color. Like dahlias, it prefers bright but indirect sunlight and needs consistent moisture and nutrient-rich soil. Protect it from cold in winter months.
The Bug-Repelling Beauty Marigolds (Tagetes erecta) are both eye-catching and practical. With their bold orange or yellow blooms, they brighten any space, and their strong scent helps repel bugs. Plant them in full sun and water regularly to keep them flourishing.
Colorful and Carefree Often called “Spanish Flag,” lantana dazzles with its red, yellow, and orange blooms. Native to the tropics, it loves hot, dry conditions and needs very little care, just full sun and occasional watering. It's also great for attracting bees and butterflies. However, keep in mind it's toxic if ingested, so be cautious with pets and small children.
10 vibrant choices. 10 ways to make your garden shine this summer, without all the extra work. The secret? Well-drained soil, just the right amount of water, and choosing plants that are made for the sun.