Plant Encyclopedia

Everything about care, pruning, watering and winter hardiness of thousands of plants

Want to see this in your garden?

1 minute, no credit card

Start free design

146 plants

Blue chives Allium nutans displaying characteristic blue-violet flowersAmaryllidaceae

Allium nutans: complete guide

Allium nutans

Allium nutans, blue chives. Siberian garden plant with striking unique blue flowers. Ideal for dry sites and edible landscaping projects.

12 min
Italian alkanet with deep blue flowersBoraginaceae

Italian alkanet: complete guide

Anchusa azurea

Italian alkanet (Anchusa azurea) is a striking perennial with deep blue flowers. Learn how to grow this Mediterranean plant successfully in your garden.

12 min
Blue Aphyllanthes plant with blue flowers along slender stemsAsparagaceae

Blue Aphyllanthes: complete guide

Aphyllanthes monspeliensis

Discover Blue Aphyllanthes, rare Mediterranean plant with fine stems and stunning blue flower clusters. Ideal for chalky, dry locations.

12 min
Aquilegia viscosa flower with blue petalsRanunculaceae

Aquilegia viscosa: complete guide

Aquilegia viscosa

Discover Aquilegia viscosa, a rare alpine columbine with exquisite blue flowers from French Cevennes. Growing and care guide.

12 min
Blue woodruff in full bloom on a sunny meadow, with delicate stems and star-shaped blue flowersRubiaceae

Blue woodruff: complete guide

Asperula arvensis

Grow Asperula arvensis successfully: sunlight, soil pH 7.5–8, watering tips, and companion plants. Ideal for dry, sunny gardens in USDA zones 7–9.

12 min
Sky-blue flowers of Aster tongolensisAsteraceae

Aster tongolensis: complete guide

Aster tongolensis

Himalayan aster with sky-blue flowers is a delightful alpine perennial ideal for borders with blooming through late summer.

12 min
Arabian pea with blue flowers and characteristic fragrant foliageFabaceae

Bituminaria bituminosa: complete guide

Bituminaria bituminosa

Discover Arabian pea (Bituminaria bituminosa), a Mediterranean legume with unique fragrance. Full care guide: location, soil, watering and maintenance for sustainable gardens.

12 min
Brimeura amethystina with delicate blue bell-shaped flowers in MayAsparagaceae

Amethyst hyacinth: complete guide

Brimeura amethystina

Full guide to Brimeura amethystina: planting depth, soil, watering, winter hardiness and companion plants for your garden.

12 min
Wild hyacint met blauwe bloemen in bloeiAsparagaceae

Camassia scilloides: complete gids

Camassia scilloides

Ontdek de wild hyacint (Camassia scilloides) met zijn prachtige blauwe bloemen. Verzorgingstips, groeiomstandigheden en plantpartners voor uw voortuin.

12 min
Campanula americana with stately blue flowersCampanulaceae

Campanula americana: complete guide

Campanula americana

Discover the American bellflower, a slender perennial with stately blue flowers. Perfect addition to borders and cutting gardens.

12 min
Blue flowers of Spiked bellflower on rocky alpine slopesCampanulaceae

Spiked bellflower: complete guide

Campanula spicata

Spiked bellflower (Campanula spicata) is a striking alpine plant with blue flowers. Learn cultivation, care, and integration into rock and alpine gardens.

12 min
Narrow-corolla bellflower with delicate blue flowersCampanulaceae

Narrow-corolla Bellflower: complete guide

Campanula stenocodon Boiss. & Reut.

Discover the narrow-corolla bellflower with delicate blue alpine flowers. A perfect alpine specialist for rock gardens and stone plantings.

12 min
Campanula wilkinsiana blue flowers in alpine gardenCampanulaceae

Campanula wilkinsiana: complete guide

Campanula wilkinsiana

Discover Wilkins's harebell, a graceful alpine bellflower with delicate blue blooms. Perfect guide for rock gardens and alpine collections.

12 min
Blue thistle displaying intense cobalt blue flower headsAsteraceae

Blue Thistle: complete guide

Carthamus caeruleus

Striking blue thistle with intense blue flower heads. Explore this Mediterranean beauty ideal for dry gardens and cut flowers worldwide.

12 min
Ceanothus fresnensis shrub covered with dense clusters of small blue flowersRhamnaceae

Fresno mat ceanothus: complete guide

Ceanothus fresnensis

Full guide to Ceanothus fresnensis: a rare California lilac shrub with blue flowers, drought tolerance, and charm for sunny dry gardens.

12 min
Belgium endive in full bloom with vibrant blue flowers in a sunny meadow settingAsteraceae

Belgium endive: complete guide

Cichorium intybus

Everything you need to know about growing Belgium endive: light, soil, watering, pruning and seasonal care. Ideal for cottage and wildlife gardens.

12 min
Cichorium pumilum with delicate blue flowersAsteraceae

Cichorium pumilum: complete guide

Cichorium pumilum

Discover dwarf chicory: Cichorium pumilum. A compact, hardy plant with delicate blue flowers, ideal for Mediterranean gardens, rock gardens, and dry landscapes.

12 min
Collinsia parviflora small blue and white two-lipped flowers on fine stemsPlantaginaceae

Maiden blue-eyed Mary: complete guide

Collinsia parviflora

Complete guide to Collinsia parviflora, the maiden blue-eyed Mary: growing from seed, ideal location, soil, bloom season and companion planting.

12 min
Vivid blue flowers of Virginia dayflower (Commelina virginica) growing in a moist streamside habitatCommelinaceae

Virginia dayflower: complete guide

Commelina virginica

Full guide to Virginia dayflower (Commelina virginica): ideal location, soil, watering, pruning, winter care and companion plants.

12 min
Crocus corsicus displaying delicate blue flowers characteristic of Mediterranean alpine habitatIridaceae

Crocus corsicus: complete guide

Crocus corsicus

Discover Corsican Crocus (Crocus corsicus), a rare blue spring-blooming alpine bulb. Perfect for advanced gardeners seeking unique, delicate treasures for rock gardens.

12 min
Corsican toadflax with blue flowersPlantaginaceae

Corsican Toadflax: complete guide

Cymbalaria hepaticifolia

Discover Corsican toadflax (Cymbalaria hepaticifolia), an elegant rock plant from Corsica. Growing advice and combinations for stone gardens.

12 min
Anderson's larkspur with blue-violet flowers on a dry western hillsideRanunculaceae

Anderson's larkspur: complete guide

Delphinium andersonii

Full guide to Delphinium andersonii: location, soil, watering, winter hardiness and companion planting in dry borders.

12 min
Delphinium consolida with elegant blue flowers along upright stemsRanunculaceae

Delphinium consolida: complete guide

Delphinium consolida

Delphinium consolida (larkspur) brings elegant blue flowers to your garden. Learn how to sow, plant, and care for this classic bloomer.

12 min
Slim larkspur showing slender spikes of blue flowersRanunculaceae

Slim larkspur (Delphinium depauperatum): complete guide

Delphinium depauperatum

Grow slim larkspur for delicate blue mountain flowers. This North American wildflower thrives in dry locations and brings alpine elegance to garden borders.

12 min