Corydalis bulbosa is a species in the genus Corydalis, placed in family Q144723, and is characterised by a spring flowering period. In the UK it flowers from April to June. Cultivation details vary across Corydalis species and cultivars, so check supplier information for precise siting and hardiness. Observe the plant through its April–June flowering to determine whether its habit and flowering suit your garden.

Corydalis bulbosa flowers in the UK from April to June, so check supplier labels for specific cultivation and hardiness guidance.

Corydalis is a genus of about 540 species of annual and perennial herbaceous plants in the family Papaveraceae, native to the temperate Northern Hemisphere and the high mountains of tropical eastern Africa. They are most diverse in China and the Himalayas, with at least 357 species in China.

Corydalis bulbosa

Corydalis bulbosa | Spring-flowering Corydalis

Corydalis chaerophylla is a species of Corydalis in the poppy family (Papaveraceae) that flowers in the UK from April to June. It sits within a genus of roughly 540 herbaceous annual and perennial species distributed across the temperate Northern Hemisphere and high mountains of tropical eastern Africa. Members of the genus are botanically unusual among dicots in having only a single cotyledon. Some Corydalis species are used as food plants by the larvae of particular butterflies and several contain alkaloids, so check supplier notes when sourcing plants.

Corydalis chaerophylla flowers in the UK from April to June and is a member of the Corydalis genus in the poppy family.

Corydalis chaerophylla

Corydalis chaerophylla | Spring flowers Apr–Jun

Corydalis ochroleuca is a perennial from south-eastern Europe with fern-like grey-green leaves and sprays of white flowers with yellow throats. It flowers in the UK from April to June, producing racemes above the foliage. It prefers partial to full shade and suits moist, well-drained soils. The foliage often remains through winter, providing low-level structure in shade.

Pale corydalis (Corydalis ochroleuca) bears white spring flowers with yellow throats and grey-green foliage, ideal for shaded, moist, well-drained spots.

https://en.wikipedia.org/wiki/Pseudofumaria_alba

Pseudofumaria is a genus of herbaceous perennial plants native to Europe, formerly included in the genus Corydalis.

Corydalis ochroleuca

Pale Corydalis (Corydalis ochroleuca) | Groundcover

Corydalis scouleri is a perennial herb native to British Columbia that produces a spring display from April to June. It suits partial shade or shade and favours moist, well-drained, humus-rich soil. Plant it where it can sit quietly in the shade layer, such as beneath shrubs or among woodland bulbs.

Scouler's fumewort (Corydalis scouleri) prefers moist, humus-rich, well-drained soil in partial shade and flowers April to June.

Corydalis scouleri

Scouler's Fumewort (Corydalis scouleri) | Woodland shade

Corydalis thalictrifolia is a herbaceous species placed in the genus Corydalis within the poppy family (Papaveraceae) and flowers in the UK from April to June. The genus contains both annual and perennial herbs and is especially diverse in China and the Himalayas. Corydalis species are ecologically significant as food plants for some butterfly larvae and several members of the genus contain alkaloids that can be toxic.

Corydalis thalictrifolia is a Corydalis species that flowers in the UK from April to June.

Corydalis thalictrifolia

Corydalis thalictrifolia | Flowers April–June

Dicentra eximia is a herbaceous perennial with finely divided, grey-green leaves and clusters of pendant pink flowers. It reaches about 0.4 m high and bears flowers on slender, mostly leafless stems. Flowering occurs from April to June. Plants suit shaded, moist spots where roots stay cool.

Fringed bleeding heart (Dicentra eximia) produces pendant pink flowers in April to June and suits shaded, moist garden sites.

https://en.wikipedia.org/wiki/Dicentra_eximia

Dicentra, known collectively as the bleeding-hearts, is a genus containing eight species of herbaceous flowering perennial plants with unique, "heart"-shaped flowers and finely divided foliage. The species are, primarily, native to North America, although several are found in temperate East Asia.

Dicentra eximia

Fringed Bleeding Heart (Dicentra eximia) | Shade Perennial

Dicentra formosa is a perennial from western North America valued for planting in shade and sheltered spots. It prefers partial shade to full shade and reliably flowers in the UK from April to June. Plant it into moist, well-drained loamy or sandy soils with an acidic to neutral pH. All parts can cause stomach ache if ingested and the foliage may aggravate skin allergies, so wear gloves and other protective equipment when handling.

Western bleeding heart (Dicentra formosa) thrives in shaded, moist, well-drained soils and flowers in the UK from April to June.

https://en.wikipedia.org/wiki/Dicentra_formosa

Dicentra formosa

Western Bleeding Heart (Dicentra formosa) | Shade Garden

Dicentra formosa 'Adrian Bloom' is a herbaceous perennial in the poppy family, noted for its fern-like divided leaves and pendant, heart-shaped flowers. Flower clusters are borne above the foliage and appear in spring. It flowers in the UK from April to June. The plant emerges from a brittle rhizome and forms clumps over time.

Dicentra formosa 'Adrian Bloom' has fern-like divided leaves and pendant, heart-shaped flowers that appear April to June.

Dicentra formosa 'Adrian Bloom'

Dicentra formosa 'Adrian Bloom' | Pacific Bleeding-heart

Dicentra formosa 'Alba' is a perennial with fern-like leaves and pendant white, heart-shaped flowers. It favours shaded, cool sites and blooms from April to June. Originating from the Pacific Northwest of North America, it is rated H5 (hardy). Plant it where its delicate flower clusters can be seen close to eye level.

White Bleeding Heart (Dicentra formosa 'Alba') has fern-like foliage and pendant white flowers from April to June in partial shade.

Dicentra formosa 'Alba'

White Bleeding Heart (Dicentra formosa 'Alba')

Dicentra formosa 'Bountiful' is a perennial Bleeding Heart with finely divided, fern-like foliage and pendant, heart-shaped flowers. The blooms appear in spring from April to June. It prefers sheltered, north- or east-facing positions in partial shade or shade on moist, rich, well‑drained loamy soil with a neutral to slightly acidic pH. Rated H5, it is classed as hardy in the UK and suits woodland and shade borders.

Bleeding Heart Dicentra formosa 'Bountiful' flowers April to June and suits sheltered north- or east-facing shade in moist, rich, well-drained soil.

Dicentra formosa 'Bountiful'

Bleeding Heart (Dicentra formosa 'Bountiful') | Shade

Dicentra formosa 'Langtrees' is a perennial bleeding heart valued in woodland and shade plantings. It favours partial shade to deep shade and performs best in moist, well-drained, humus-rich soil of acidic to neutral pH. The cultivar carries a UK hardiness rating of H5 (hardy). All parts cause stomach ache if ingested and the foliage may aggravate skin allergies, so wear gloves when handling.

Dicentra formosa 'Langtrees' is a shade-loving perennial for woodland and border plantings, flowering April to June.

Dicentra formosa 'Langtrees'

Bleeding Heart 'Langtrees' (Dicentra formosa)

Dicentra formosa 'Paramount' is a perennial in the genus Dicentra, commonly called Bleeding Heart, that flowers from April to June. It prefers partial shade to shade and suits moist, well‑drained rich loamy soil across acidic, neutral or alkaline pH. Rated H5 for the UK (hardy), it favours north or east aspects in sheltered positions. The plant is toxic if ingested, so site it away from places used by children or pets.

Bleeding Heart (Dicentra formosa 'Paramount') flowers April to June and prefers moist, well‑drained loamy soil in sheltered, shaded positions.

Dicentra formosa 'Paramount'

Bleeding Heart (Dicentra formosa 'Paramount') | Perennial

Dicentra formosa 'Silver Smith' is a perennial from the Pacific Northwest of North America that performs well in partial shade and shade. It prefers well-drained, humus-rich soil that remains moist and suits acidic to neutral pH. Flowering occurs April to June and it suits shade gardens, woodland planting and borders.

Dicentra formosa 'Silver Smith' is a shade-tolerant perennial for humus-rich, acidic to neutral soil that flowers April to June.

Dicentra formosa 'Silver Smith'

Pacific Bleeding-heart (Dicentra formosa 'Silver Smith')

Dicentra macrantha is a Dicentra species notable for pendent, fish‑shaped blooms in shades of cream to pale yellow. It is native to northern Burma and southern China and is recorded from woodland and glade habitats. Flowering occurs in the UK from April to June. The plant grows from a long rhizome and produces leafy stems bearing clusters of hanging flowers.

Dicentra macrantha bears cream to pale yellow, fish-shaped flowers from April to June and is native to northern Burma and southern China.

https://en.wikipedia.org/wiki/Ichtyoselmis

Ichtyoselmis macrantha is the only species in the genus Ichtyoselmis. It is a perennial plant growing from a long rhizome, native to woodland and glades at elevations of 1,500–2,700 metres (4,900–8,900 ft) in northern Burma and southern China.

Dicentra macrantha

Dicentra macrantha | Large-flowered Dicentra

Dicentra spectabilis is a perennial grown for its spring flowering display, flowering from April to June. It reaches about 0.6 m and suits sites with full sun in sandy or loamy soils that remain moist but well-drained. It is rated H7 (fully hardy) in the UK and should be handled with care as it is toxic if ingested.

Bleeding Heart (Dicentra spectabilis) flowers from April to June and suits borders, woodland and shade gardens in fully hardy UK conditions.

https://en.wikipedia.org/wiki/Lamprocapnos

Lamprocapnos spectabilis, commonly known as bleeding heart or Asian bleeding heart, is a species of flowering plant belonging to the fumitory subfamily (Fumarioideae) of the Papaveraceae. It is native to Northeast China and the Korean peninsula; however, it has been introduced by humans into a larger area of Northeast Asia, including parts of Siberia, Russia and Japan.

Dicentra spectabilis

Bleeding Heart (Dicentra spectabilis) | Spring Perennial

Dielytra is a genus of herbaceous flowering perennials containing eight species and characterised by heart-shaped, bisymmetric flowers and finely divided foliage. Individual blooms have four petals with the outer pair often spurred at the base. Leaves typically form a basal rosette while flowers are carried on leafless stalks. The genus is native primarily to North America, with several species in temperate East Asia.

Dielytra (Bleeding-Hearts) is a genus of perennials with heart-shaped flowers and finely divided leaves, suited to cool, shaded, moist garden spots.

Dielytra

Bleeding-Hearts (Dielytra) | Woodland Perennial

Eomecon chionanthum is a perennial valued for use as ground cover in shady, sheltered sites. It prefers partial shade to shade and moist, well-drained, humus-rich soil with a neutral to acidic pH. It is hardy in the UK (H5). All parts are toxic if ingested, so avoid planting where children or pets might eat the foliage.

Snow-poppy (Eomecon chionanthum) is a perennial suited to partial shade and moist, humus-rich neutral to acidic soil in sheltered UK sites.

Eomecon is a monotypic genus of flowering plants in the poppy family containing the single species Eomecon chionantha. Its common names include snow-poppy and dawn-poppy.

Eomecon chionanthum

Snow-poppy (Eomecon chionanthum) | Shade ground cover

Hylomecon japonicum is a shade-tolerant, spring-flowering perennial from Japan used as a ground cover in woodland plantings. It flowers April to May and prefers partial shade to full shade. Plant in moist, well-drained, humus-rich soil with an acidic to neutral pH. It is H5 hardy in the UK.

Japanese wood poppy (Hylomecon japonicum) is a spring-flowering perennial for shady, humus-rich, moist soils in the UK.

Hylomecon is a genus of flowering plants in the family Papaveraceae. Its species are native to China, Korea, Japan and the Russian Far East.

Hylomecon japonicum

Japanese Wood Poppy (Hylomecon japonicum) | Shade Plant

Macleaya cordata, the five-seeded plume-poppy, is a species of flowering plant in the poppy family Papaveraceae, which is used ornamentally. It is native to China and Japan.

https://en.wikipedia.org/wiki/Macleaya_cordata

Macleaya, or plume poppy, is a genus of two or three species of flowering plants in the poppy family Papaveraceae, native to Japan and China. They are large rhizomatous herbaceous perennials with palmately lobed, frilly leaves of olive green or grey colour, 25 cm (10 in) long, and tall stems with airy plumes of petal-less, tubular, off-white or cream flowers.

Macleaya cordata

Macleaya microcarpa is a species of flowering plant in the poppy family, Papaveraceae. It is a vigorous, substantial herbaceous perennial growing to 2 m (7 ft) tall by 1 m (3 ft) or more wide, with grey-green felted leaves and loose panicles of buff flowers in midsummer.

https://en.wikipedia.org/wiki/Macleaya_microcarpa

Macleaya microcarpa 'Coral Plume'

Papaver lateritium is a perennial poppy from the Armenian Highlands that flowers from May to August. It prefers a sunny position and a well-drained soil kept at moderate moisture. The plant is associated with the common name Armenian poppy. In the UK it suits sunny, free-draining spots where soil does not remain waterlogged.

Orange poppy (Papaver lateritium) blooms May to August and prefers full sun in well-drained, moderately moist soil.

https://en.wikipedia.org/wiki/Papaver_lateritium

Papaver is a genus of 70–100 species of frost-tolerant annuals, biennials, and perennials native to temperate and cold regions of Eurasia, Africa and North America. It is the type genus of the poppy family, Papaveraceae.

Papaver lateritium

Orange Poppy (Papaver lateritium) | Armenian poppy

Papaver orientale, the Oriental poppy, is a perennial flowering plant native to the Caucasus, northeastern Turkey, and northern Iran.

https://en.wikipedia.org/wiki/Papaver_orientale

Papaver orientale

Papaver orientale 'Indian Chief'

Papaver orientale 'Marcus Perry' is a perennial Oriental poppy that reaches about 1.0 m and flowers from May to August. It favours a full sun position and does best in sandy or loamy soils that are well-drained or at least moist but well-drained. The cultivar is fully hardy in the UK (H7) and also fits USDA zones 3–9. Its native range is the Caucasus, northeastern Turkey and northern Iran.

Papaver orientale 'Marcus Perry' flowers from May to August and reaches about 1.0 m, preferring full sun and well-drained sandy or loamy soil.

Papaver orientale 'Marcus Perry'

Oriental Poppy (Papaver orientale 'Marcus Perry') | 1m

Papaver orientale 'May Queen' (double) is a perennial poppy that bears double flowerheads on erect stems to about 1.0 m. It favours a sunny, open position in sandy or loamy soils that are moist but well-drained. Flowering runs from May to August, making it a summer-flowering perennial. The plant is toxic if ingested, so take care where children or pets might have access.

Papaver orientale 'May Queen' (double), the Oriental poppy, flowers May to August in full sun on well-drained sandy or loamy soil.

Papaver orientale 'May Queen' (double)

Papaver orientale 'May Queen' (double) | Oriental poppy

Papaver orientale 'Mrs Perry' is a perennial cultivar of Oriental poppy that grows to around 1.0 m. It flowers in the UK from May to August. Give it full sun in sandy or loamy soil that is well drained or moist but well drained. It originates from the Caucasus, northeastern Turkey and northern Iran and is fully hardy in the UK (H7).

Papaver orientale 'Mrs Perry' is a perennial Oriental poppy that flowers from May to August and reaches about 1.0 m.

Papaver orientale 'Mrs Perry'

Oriental Poppy (Papaver orientale 'Mrs Perry') | May–Aug

Papaver orientale 'Mrs Stobart' is an Oriental poppy cultivar grown as a herbaceous perennial for borders and cut flowers. It reaches around 1.0 m and flowers from May to August. Plant in a sunny, full-sun position on sandy or loamy, well-drained soil that remains moist but drains freely.

Papaver orientale 'Mrs Stobart' is an Oriental poppy that flowers May to August and suits sunny, well-drained sandy or loamy soils.

Papaver orientale 'Mrs Stobart'

Papaver orientale 'Mrs Stobart' | Borders & Cut Flowers

Papaver orientale 'Nana Flore Pleno'

Papaver orientale 'Olympia' is a perennial oriental poppy that typically reaches about 1.0 m and produces flowers in summer. It favours full sun and establishes in sandy or loamy soils that are well-drained or moist but well-drained. Rated H7 (fully hardy) and suitable for USDA zones 3–9, it is best sited in open, sunny positions.

Oriental Poppy 'Olympia' (Papaver orientale 'Olympia') is a 1.0 m perennial that flowers from May to August and suits full sun in sandy or loamy.

Papaver orientale 'Olympia'

Oriental Poppy 'Olympia' (Papaver orientale 'Olympia')

Papaver orientale 'Perry's White'

Papaver orientale 'Peter Pan' is a perennial poppy reaching about 1.0 m and noted for flowering in the UK from May to August. It favours full sun and performs best in sandy or loamy soils that are well-drained yet can remain gently moist. Use it where tall herbaceous stems are wanted, for example in mixed borders or for cutting. Take care: all parts are toxic if ingested.

Peter Pan Oriental Poppy (Papaver orientale 'Peter Pan') is a perennial to 1.0 m that flowers May to August and suits full sun on well-drained sandy or.

Papaver orientale 'Peter Pan'

Peter Pan Oriental Poppy (Papaver orientale 'Peter Pan')

Papaver orientale 'Salmon Glow' (double) is a perennial Oriental poppy cultivar with fully double flowers. It forms a herbaceous clump to about 1.0 m and favours a sunny aspect in sandy or loamy, well-drained soil. Flowering occurs from May to August. The foliage dies back after the flowering season and the plant is toxic if ingested.

Papaver orientale 'Salmon Glow' (double) is an Oriental poppy with double flowers to about 1.0 m, flowering May to August and suited to sunny.

Papaver orientale 'Salmon Glow' (double)

Papaver orientale 'Salmon Glow' (double) | Oriental Poppy

Papaver orientale 'Stormtorch' ('Sturmfackel') is a perennial Oriental poppy that flowers from May to August. It produces a rosette of finely dissected, hairy leaves before the flowering season. The plant reaches about 1.0 m and favours full sun on sandy or loamy, well-drained ground. It is fully hardy in the UK (H7) and also suits USDA zones 3–9.

Oriental poppy 'Stormtorch' (Papaver orientale 'Stormtorch' ('Sturmfackel')) flowers May to August and prefers full sun on well-drained sandy or loamy.

Papaver orientale 'Stormtorch' ('Sturmfackel')

Papaver orientale 'Stormtorch' ('Sturmfackel') | Perennial

Papaver spicatum is a species of poppy in the genus Papaver, member of the poppy family Papaveraceae. As with other Papaver species, its buds shed their two sepals as they open and the flowers typically have four to six petals. It produces a rounded capsule fruit which later releases numerous tiny seeds. In the UK it flowers from May to August.

Papaver spicatum is a poppy that flowers May to August and forms seed-bearing capsules that release tiny seeds.

Papaver spicatum

Papaver spicatum | Poppy, flowers May–August

Romneya trichocalyx, the bristly Matilija poppy or hairy Matilija poppy, is a species of flowering plant in the poppy family. This poppy is native to San Diego, Ventura, and Santa Barbara counties in California, as well as Baja California, Mexico, where it grows in dry canyons in chaparral and coastal sage scrub plant communities.

https://en.wikipedia.org/wiki/Romneya_trichocalyx

Romneya is a genus of flowering plants belonging to the poppy family (Papaveraceae). There are two species in the genus Romneya, which was named after the Irish astronomer John Thomas Romney Robinson; the first discovered species R.

Romneya trichocalyx

Romneya × hybrida 'White Cloud' is a perennial Matilija poppy valued for its summer flowering. Native to California, USA, it prefers full sun and well-drained soils and tolerates dry to medium moisture. Place it in a fully exposed site where its June to August blooms and mild fragrance can be appreciated.

White Cloud Matilija Poppy (Romneya × hybrida 'White Cloud') is a perennial Californian poppy that flowers June to August and prefers full sun with.

Romneya × hybrida 'White Cloud'

White Cloud Matilija Poppy (Romneya × hybrida 'White Cloud')

Romneya × hybrida of gardens is a perennial shrub in the genus Romneya grown for its summer-flowering habit and a mild, sweet fragrance. It does best in full sun on well-drained sandy or loamy soil with a neutral to slightly alkaline pH. Plant on a south-facing aspect where soil remains dry to medium rather than waterlogged. It is hardy to H5 and suits ornamental borders and xeriscape schemes.

Matilija poppy is a perennial shrub (Romneya) that flowers from June to August and prefers full sun with well-drained, sandy or loamy soil.