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Kniphofia Hybrids
torch lily, red hot poker
Sub-Saharan Africa, primarily South Africa; hybrid cultivars of garden originOverview
A clump-forming perennial reaching 24–60 inches (60–150 cm) tall in bloom and 18–36 inches (45–90 cm) wide, depending on the hybrid. Leaves narrow, strap-like to grass-like, 18–36 inches (45–90 cm) long and 0.5–1 inch (1.2–2.5 cm) wide, arching, mid- to dark green, forming dense basal clumps. Flower spikes erect on stout stems above the foliage, bearing dense cylindrical racemes of pendent tubular florets 1–1.5 inches (2.5–4 cm) long. The classic bicolor effect — orange-red to scarlet buds opening downward to yellow or cream — gives the characteristic torch appearance, though modern hybrids include single-color selections in white, cream, yellow, coral, orange, and red. Bloom season varies by hybrid: early-season types bloom May through June, mid-season July through August, and late-season September through October. Excellent hummingbird plant. Hardy in USDA zones 5–9 depending on the hybrid; drainage in winter is critical to cold hardiness.
Native Range
Kniphofia species are native to sub-Saharan Africa, primarily South Africa, Lesotho, Swaziland, and Ethiopia, growing in moist grasslands, streambanks, and rocky slopes at varying elevations. Hybrid garden cultivars are derived from multiple South African species and do not have a specific native range.Suggested Uses
Used as a bold specimen plant or in mixed borders at 24–36 inch (60–90 cm) spacing. The dramatic flower spikes provide strong vertical accent. Excellent hummingbird and pollinator plant. Combines well with ornamental grasses, crocosmia, rudbeckia, and echinacea in summer and fall borders. Cut flowers last 5–7 days in water.How to Identify
Appearance
Size & Dimensions
Height2' - 5'
Width/Spread1'6" - 3'
Reaches mature size in approximately 2 years
Bloom Information
Bloom season varies significantly by hybrid. Early hybrids flower May through June; mid-season types July through August; late-season types September through October. Extended-bloom selections may flower from June through September with multiple flushes. Individual spikes remain ornamental for 2–4 weeks. Removing spent spikes at the base may encourage secondary spikes on well-established clumps.Detailed Descriptions
Flower Description
Orange-red to scarlet (upper buds) to yellow or cream (lower florets); single-color hybrids in white, yellow, coral, redFoliage Description
Mid- to dark green, narrow strap-like, archingGrowing Conditions
Sun Requirements
Requires 6-12 hours of direct sunlight daily
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight
Care & Maintenance
Care Guide
Plant in full sun in well-drained to dry, sandy or loamy soil. Excellent drainage is essential — wet winter soils cause crown rot and are the primary cause of cold-climate failure even in hardy hybrids. Space plants 24–36 inches (60–90 cm) apart. Water during establishment; once established, tolerates extended dry periods of 2–4 weeks. Do not fertilize heavily; lean soils produce better flowering. In zones 5–6, tie leaves together loosely over the crown in late fall to provide insulation, or mulch heavily. Divide overcrowded clumps every 4–5 years in early spring. Do not cut leaves back hard — the strappy foliage provides crown insulation.Pruning
Cut spent flower spikes to the base after bloom — do not deadhead individual florets. Do not cut foliage back to the ground; the leaves protect the crown over winter. Remove dead or tattered outer leaves in early spring. Divide in early spring by separating offsets from the outer edge of established clumps.Pruning Schedule
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summerearly spring