11 White Perennial Flowers that Bloom All Summer Long

Gardenia

White perennial flowers can add a sense of calm and serenity to your garden. Consider growing the following flowers if you would like a garden that blooms all summer long.

Candytuft
Grow this flowering plant in a sunny spot that has well-drained soil. Candytufts will struggle in muddy, clay soil. They can help attract butterflies and other pollinators to your garden.
USDA Hardiness Zone: 5 – 9

Iceberg Rose
An easy-to-grow flowering plant that prefers full-sun (minimum of six hours of direct sunlight) and well-drained soil conditions. The Iceberg Rose is a cross of Robin Hood and Virgo roses.
USDA Hardiness Zone: 4 – 9

Annabelle Hydrangea
An attractive shrub that typically blooms from late spring to summer. The Annabelle Hydrangea thrives in partial shade, well-drained soil conditions. It may tolerate full sun conditions if grown with consistent moisture.
USDA Hardiness Zone: 4 – 9

Japanese Anemone
White perennial flowers that bloom from late summer to fall. They can add a vibrant color to your garden as early-blooming perennials start to fade. Japanese Anemone prefers evenly moist, well-drained soil. It can grow in full and part sun conditions.
USDA Hardiness Zone: 4 – 8

Calla Lily
This elegant-looking flowering plant has bulbs that may produce more than ten flowers season after season. Calla Lily thrives in partial shade conditions. They can attract bees, hummingbirds, and other pollinators to the yard.
USDA Hardiness Zone: 8 – 10

Cupflower
Also known as Nierembergia, cupflowers are heat-loving perennials that have excellent disease and drought tolerance. They need full sun and well-drained soil conditions to grow.
USDA Hardiness Zone: 8 – 11

Shasta Daisy
These daisy flowers bloom from spring till early fall. They love full sun, well-drained soil conditions. Their long stems make them great for cutting.
USDA Hardiness Zone: 4 – 9

White Showy Ladyslipper Orchid
This rare white-flowered orchid prefers a partially open site and can be grown on neutral or slightly acidic soil. It isn’t recommended for beginners due to the amount of care required. The orchids will bloom in late June or early July.
USDA Hardiness Zone: 2 – 7

Flowering Splurge
This flowering plant grows up to a height of 3 feet and blossoms with beautiful flowers that have five white petals with a touch of green near the middle. It can be grown in full and partial sun conditions, and well-drained soil.
USDA Hardiness Zone: 3 – 9

Phlox David
This species of phlox grows best in medium-moisture, organic soil and full sun conditions. Phlox David should be grown in well-ventilated spaces as a lack of air circulation could lead to powdery mildew problems.
USDA Hardiness Zone: 3 – 8

Agapanthus, White Heaven
This flowering plant has tall slender stems with flower heads that could reach seven to nine inches in diameter. The trumpet-shaped petals could help attract hummingbirds and other pollinators to the garden. They are drought-resistant and low-maintenance plants.
USDA Hardiness Zone: 7 – 10