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Seed Encyclopedia
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Results 1 - 8 of 8
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Flowers/Perennials
HELENIUM species Sneezeweed Zone 3 to 7 he-le’ne-um Perennial Easy Asteraceae, native to North America. Germination: Best sown indoors at alternating temperatures of 68 and 82°. Sow 8-10 weeks before planting out and with no cover as...
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Flowers/Perennials
HELIANTHUS maximilianii Prairie Sunflower Zones 4 to 10 he-le-an’thus mak-si-mil-i-an’e-i Perennial Easy Asteraceae, native to midwestern America. Germination: Sow indoors at 55-72° (will germinate over a wide temperature range) at...
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Flowers/Perennials
HELIOPSIS helianthoides Sunflower Heliopsis Zone 4 to 9 he-le-op’sis he-le-an-thoy’dez Perennial Easy Asteraceae, native to North America. Germination: Sow seeds indoors 6-8 weeks before planting out. Sow at 68-70° and at a depth of...
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Flowers/Perennials
HELLEBORUS niger Christmas Rose Zones 3 to 8 he-leb’ôr-us ni’jer Perennial Difficult Ranunculaceae, native to Europe. Germination: For indoor germination, seeds must undergo cold-moist stratification by placing them in a moistened...
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Flowers/Perennials
HEMEROCALLIS hybrids Daylily Zones 3 to 9 hem-er-o-kal’is Perennial Moderate Liliaceae, native to Europe and Asia. Germination: Best sown indoors at alternating temperatures of 55 and 70° AFTER cold-moist stratification in the...
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Flowers/Perennials
HEUCHERA sanguinea Coral Bells Zones 3 to 8 hu’ker-å san-gwin’e-å Perennial Moderate Saxifragaceae; native to New Mexico and Arizona. Germination: Best sown indoors at 53-59° with no cover. Expect germination in 10-15 days. Seeds...
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Flowers/Perennials
HIBISCUS moscheutos Swamp Rose Mallow Zones 5 to 10 hi-bis’kus mos-kew’tos Perennial Easy Malvaceae; native to the eastern United States. Germination: Best sown indoors at 68-72° at a depth of 4 times the diameter of the seeds....
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Flowers/Perennials
HOSTA ventricosa Blue Plantain Lily Zones 3 to 9 hos’tå ven-tri-ko’så Perennial Moderate Liliaceae; native to Eastern Asia. Germination: Best sown indoors at 68-70° at a depth of 4 times the diameter of the seeds. Expect...
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"Digging up a mature clump of perennials, separating it into segments with new stems and roots and discarding the old core is an effective way to keep plants vigorous, free-flowering and disease-free," Adrian Higgins, The Washington Post Garden Book |