The Well-Tended Perennial Garden The Essential Guide to Planting and Pruning Techniques, Third Edition
Heterotheca villosa (syn. Chrysopsis villosa) hairy goldaster compoSitae Yellow daisylike flower heads; gray-green hairy leaves ...
for the year. Do not prune ‘Palace Purple’ for the winter. Deadleaf or shear off any damaged leaves in early spring to make room ...
when they have declined enough. Plants need deadleafing if they get too dry over the summer. Evergreen foliage usually holds wel ...
more tolerant of summer heat and humidity than other species and hybrids of Heuchera—a boon to southern gardeners. related plant ...
damage, which can be so prominent on hibiscus. Plants that normally flower at 4 ft. bloomed at 2 1/2 ft. when cut back by half i ...
necessary in late summer, particularly if plants have gotten dry. Leaving foliage on hostas over the winter can provide addition ...
Hypericum calycinum St. John’s wort hypericaceae Large yellow flowers; evergreen leaves 15–18 in. high; 24 in. wide Full sun or ...
may root as they come in contact with the soil; these can be separated from the parent plant and transplanted. Inula ensifolia s ...
Inula helenium elecampane compoSitae Shaggy yellow flowers on tall stalks; huge oblong basal leaves 3–7 ft. high; 3 ft. wide Ful ...
Iris domestica (syn. Belamcanda chinensis) blackberry lily iridaceae Orange star-shaped flowers; irislike leaves 3–4 ft. high; 2 ...
shear all foliage back to about 4–6 in. above the ground. Pull off any brown leaves that have shriveled and died down at the bas ...
fans are usually evident under the old ones, and these are the sites of late summer to autumn flower production. Divide plants f ...
related plantS Iris sibirica ‘Baby Sister’ is a violet-blue dwarf form reaching 16 in. Good standard-sized Siberian irises inclu ...
native grown for its magnificent bold foliage and its drooping sprays of delicate yellow late-season flowers. Pamper this exquis ...
It’s not a rampant seeder, however, and surplus plants are easily relocated to another part of the garden or to the compost pile ...
Lamium maculatum dead nettle lamiaceae Hooded pink flowers; green foliage with gray-green spot on midrib 8–12 in. high; 18–24 in ...
Lavandula angustifolia English lavender lamiaceae Purple flower spikes; narrow, fragrant silvery leaves 12–24 in. high; 24 in. w ...
Leucanthemum ×superbum Shasta daisy compoSitae White daisy flowers; narrow, toothed leaves 2–4 ft. high; 2–3 ft. wide Full sun B ...
Liatris spicata spike gayfeather compoSitae Spikes of violet, purple, or white flowers; linear leaves 2–4 ft. (6–10 in.) high; 1 ...
Ligularia dentata bigleaf ligularia compoSitae Yellow-orange daisylike flower heads; large, rounded leathery leaves 3–4 ft. (3 f ...
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