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358


HELLEBORUS


selections (white, pink, yellow, or red fl owers), Royal Heritage strain (pink, purple, maroon, or white blooms), and Winter Queen mix (white, pink, maroon, or spotted fl owers). Others are grouped according to form, such as Party Dress group, which has double fl owers. Moderate to regular water. H. ‘Ivory Prince’. Zones


H


2–9, 14–17. Hybrid of complex parentage, with foliage like that of H. niger. Grows 1 ft. high, 11⁄2– 2 ft. wide; red buds open into ivory white fl owers that take on rose and chartreuse tones as they age. Regular water. H. lividus. Zones 5 (with protection), 6–9, 14–24. From Majorca. To 11⁄2 ft. high and twice as wide. Leaves resemble those of H. argutifolius but lack noticeable teeth and have pur- plish undersides and a network of pale veins above. Flowers are pale green washed with pinkish purple. Moderate water. H. niger. CHRISTMAS ROSE.


clockwise from top: Helleborus orientalis; H. × hybridus; H. ‘Ivory Prince’


Two compact varieties with white-marbled leaves are ‘Janet Starnes’ (with a touch of pink in new foliage) and ‘Pacifi c Frost’. ‘Silver Lace’ has blue-gray foli- age overlaid with a silver lace pattern. Moderate water. H. × ballardiae. Zones 3–


7, 14–24. This cross between H. niger and H. lividus grows to 1–11⁄2 ft. high and 2 ft. wide, with 21⁄2-in.-wide outward-facing blooms on deep red stems. ‘Cinnamon Snow’ has dark green leaves and white fl owers with warm rose and cinnamon tones. ‘Pink Frost’ has gray- green leaves with silvery veins; its fl owers combine pale pink and rose. Regular water. H. × ericsmithii. Zones


2–9, 14–24. Hybrid of complex parentage. Grows 1–11⁄2 ft. high and 11⁄2 ft. wide, with dark green, pale-veined leaves and large sprays of pale pink or white fl owers, each up to 4 in. across. Blooms face out, not down. Regular water.


H. foetidus. BEAR’S-FOOT HELLEBORE. Zones 2b–9, 14– 24. From western and central Europe. To 21⁄2 ft. high and wide, the stems clothed with dark green leaves divided into many narrow leafl ets. Clusters of inch-wide fl owers are light green with purplish red edges. ‘Red Silver’ has red stems, narrow leafl ets with a silver sheen, and green fl owers with a red edge. Plants in the Wester Flisk group have stems, fl ower stems, and leafstalks infused with purplish red, with the color extending into leaf bases. All tolerate con- siderable sun in cool, humid areas. Self-sow freely where adapted. Moderate water. H. × hybridus. Zones


2b–10, 14–24. Leaves have no obvious stems. These hybrid plants generally resemble prin- cipal parent, H. orientalis, but fl ower color range has been extended and superior parents selected for seed production. Some are sold under the breed- er’s name, such as Ballard’s Group, which has fl owers in sev- eral colors. Others are sold as color strains, such as Sunshine


Zones 1–7, 14–17. From Europe. Leaves have no obvious stems. Elegant plant to 1 ft. high, 11⁄2 ft. wide. Dark green leaves are divided into several lobes with a few large teeth. White, 2-in. fl ow- ers appear singly or in groups of two or three on a stout stem about the same height as the foliage clump. Blooms turn pink- ish with age. ‘White Magic’ and ‘Potter’s Wheel’ are large- fl owered varie ties. Needs more shade than other hellebores. Also needs alkaline soil; if your


soil is acidic, mulch plants with 1⁄2-in.-deep layer of lime or gran- ite chips. Regular water. H. orientalis. LENTEN


ROSE. Zones 2b–10, 14–24. Greece, Turkey, and the Cauca- sus. Leaves have no obvious stems. Basal leaves have sharply toothed leafl ets; branched fl ow- ering stems to 1 ft. high. Flow- ers are 2–4 in. wide, in colors including white, pink, purplish, cream, and greenish, often spotted with deep purple. Eas- ier to transplant than other hel- lebores. A widely variable plant, but all forms are attractive. Encourage self-sowing and keep the colors you like. Moderate to regular water. H. × sternii. Zones 4–9, 14– 24. Hybrid between H. argutifo- lius and H. lividus, with bluish green foliage netted with white


or cream. Greenish fl owers are suffused with pink. Grows 1– 11⁄2 ft. high and wide. Moderate water. ‘Boughton Beauty’ has silver-gray leaves with pink stems. Plants in Blackthorn Group have boldly veined leaves, purple stems, and purplish fl owers.


CARE


Plant in well-drained soil amended with plenty of organic matter. Plants prefer soil that is somewhat alkaline but will also grow well in neutral to slightly acid conditions (H. niger is an exception; it must have alkaline soil). Feed once or twice a year. Don’t disturb once planted; they resent moving and may take 2 or more years to reestablish (if they survive at all). If well sited, however, they may self-sow, and young seedlings can be trans- planted in early spring. Off- spring may not resemble the parent, but all are attractive.


Helxine soleirolii. See Soleirolia soleirolii


Hemerocallis DAYLILY


Hemerocallidaceae PERENNIALS FROM TUBEROUS ROOTS


ZZONES 1–24; H1, H2; EXCEPT AS NOTED


FP PARTIAL SHADE IN HOTTEST CLIMATES


O REGULAR WATER


Hemerocallis hybrid


Few plants offer fl owers in so many colors with so little care. Tuberous, somewhat fl eshy roots give rise to large clumps of arch- ing, sword-shaped leaves— evergreen, semievergreen, or deciduous, depending on daylily


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