The Asian bleeding-heart grows to 120 cm (47 in) tall by 45 cm (18 in) wide. It is a rhizomatous herbaceous perennial with 3-lobed compound leaves on fleshy green to pink stems. The arching horizontal racemes of up to 20 pendent flowers are borne in spring and early summer. The outer petals are bright fuchsia-pink, while the inner ones are white. The flowers strikingly resemble the conventional heart shape, with a droplet beneath â hence the common name. The plant sometimes behaves as a spring ephemeral, going dormant in summer.
Keep plants well watered throughout the summer, especially in warmer weather. Even then, they may disappear until the fall or next spring. If you recently planted your bleeding hearts, it would be wise to mark the spot, so you do not accidentally dig in the area while your plants are dormant. Western bleeding heart is a little more drought-tolerant than the other species, but it is still best to treat them all as woodland plants and provide a moistâbut not wetâenvironment.
Bleeding heart grows best in light shade, although it will tolerate full sun in moist and cool climates. In most locations plants prefer morning sun and afternoon shade.
Bleeding heart plants are not heavy feeders, so when to fertilize depends on the quality of your soil. If you have rich, organic soil that is amended every year, you will not have to feed at all. Bleeding hearts are woodland plants and do especially well with a top dressing of leaf mold.
Bleeding heart prefers humus-rich, moist soil, with lots of organic matter, but it is not too particular about soil pH. It prefers a slightly acidic soil, but will do fine in neutral soils. Spread a 2- to 3-inch layer of organic matter, such as compost or well-rotted manure, over the existing soil.
No pruning or deadheading is required, since this plant will bloom again later in the season. Be sure to leave the flowers if you want it to go to seed. You can trim back the foliage when it starts to turn ugly. Fringed-leaf varieties will eventually get a little ragged-looking and can be sheared back to their basal growth; they will re-leaf and rebloom.
A bleeding heart plant begins to yellow once the summer heat ramps up. This is perfectly normal, as it is a sign that it is storing away energy for the winter. Its ideal temperature is 55 to 75 degrees Fahrenheit. It has a good tolerance for high humidity.
Although bleeding heart is a woodland plant, growing bleeding heart in a container is definitely possible.
Like a surprisingly large number of plants, bleeding heart is toxic if it is eaten in large enough quantities. Bleeding heart is deciduous plant. It discards leaves at the end of the summer. Bleeding heart develops pink, heart-shaped flowers (petals are white from the inside) with small, white, drop-like hanging part on the bottom side (hence the name "bleeding heart"). Flowers are arranged in horizontal clusters (raceme).
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