Everything you need to know to grow a beautiful flower garden with the Seed Library. Helianthus Annual Planting: Sow directly outdoors after the last spring frost. Harvest Days: 110 Light: Sun Spacing: 18” Height: 24-144” Depth: ½” Water: 1” of water per week. Germination: 7-21 days. Notes: Wide mix of color and size; may require support. Centaurea Cyanus Annual Planting: For best outcome, sow directly outdoors after the last spring frost. For earliest blooms, begin indoors 6-8 weeks before the last spring frost. Harvest Days: 90 Light: Sun, partial shade Spacing: 9” Height: 24” Depth: ¼” Water: 1” of water per week. Germination: 14-21 days. Notes: Likes cool weather and prefers some shade. Moluccella Laevis Annual Planting: For best outcome, sow directly outdoors 2 weeks before the last spring frost. For earliest blooms, begin indoors 6-8 weeks before the last spring frost. Harvest Days: 112 Light: Sun Spacing: 12” Height: 36” Depth: Surface sow Water: 1” of water per week. Germination: 14-21 days. Notes: Sow outdoors two weeks before last frost; likes cool weather. Gaillardia Perennial Planting: Sow directly outdoors after the last spring frost. For earliest blooms, start indoors 8-10 weeks before the last spring frost. Harvest Days: 90 Light: Sun Spacing: 18” Height: 36” Depth: ¼” Water: After the plant has germinated it can go without being watered regularly. Unless weather conditions are extremely hot and dry, then water once or twice a week. Germination: 14-35 days. Notes: Drought tolerant; slow germination. Borago Officinalis Annual Planting: Start indoors 6-8 weeks before the last spring frost, then sow outdoors 2 weeks after the last spring frost. Harvest Days: 70 Light: Sun Spacing: 12” Height: 18” Depth: ¼” Water: Once relocated outside be sure to water every few days for the first couple of weeks, then just 1” of water per week. Germination: 7-14 days. Notes: Drought and heat tolerant; great for natural pest control. Calendula Officinalis Annual Planting: Sow directly outdoors after the last spring frost. For earliest blooms, begin indoors 6-8 weeks before the last spring frost. Harvest Days: 105 Light: Sun, partial shade Spacing: 18” Height: 18” Depth: Surface sow Water: 1” to 1 ½” of water per week. Germination: 7-14 days. Notes: Great for borders and planters. Eschscholzia Californica Annual Planting: Sow directly outdoors after the last spring frost or begin indoors 2-3 weeks before the last spring frost. Harvest Days: 70 Light: Sun Spacing: 12” Height: 18” Depth: ¼” Water: 1” of water every 1-2 weeks during warm weather. 1” of water every 2-4 weeks during cool weather. Germination: 14-21 days. Notes: Frost tolerant, start outdoors in early spring. Cosmos Bipinnatus Annual Planting: Sow directly outdoors after the last spring frost or begin indoors 4-6 weeks before the last spring frost. Harvest Days: 90 Light: Sun Spacing: 18” Height: 60” Depth: ¼” Water: After the plant has germinated it can go without being watered regularly. Water once or twice a week if the weather is unusually dry. Germination: 7-21 days. Notes: Tolerates poor soil; great cut flower. Leucanthemum Superbum Perennial Planting: Begin indoors 8-10 weeks before the last spring frost. Then sow outdoors after the last spring frost and the temperature has warmed. Harvest Days: 2 years to bloom Light: Sun Spacing: 24” Height: 36” Depth: 1/8” Water: 1” of water per week. Germination: 14-21 days. Notes: Unique Shasta daisy variety; resists deer and rabbits. Callistephus Chinensis Annual Planting: Begin indoors 6-8 weeks before the last spring frost. Then sow outdoors after the last spring frost. Harvest Days: 110 Light: Sun Spacing: 8” Height: 36” Depth: ¼” Water: 1” to 2” of water per week. Germination: 7-10 days. Notes: Great against fence lines; doesn’t tolerate drought. Zinnia Elegans Annual Planting: Sow directly outdoors after the final spring frost. For earliest blooms, begin indoors 4-5 weeks before the last spring frost. Harvest Days: 100 Light: Sun Spacing: 9” Height: 40” Depth: ½” Water: 1” of water twice a week. Germination: 7-10 days. Notes: Easy to grow; drought and deer resistant. Papaver Rhoeas Annual Planting: Sow directly outdoors a month before the last spring frost. For earliest blooms, start indoors 6-8 weeks before the last spring frost. Harvest Days: 90 Light: Sun Spacing: 6” Height: 30” Depth: Surface sow Water: 1” of water per week. Germination: 10-21 days. Notes: Delicate blooms perfect for cut flowers or wildflower areas. Oenothera Biennis Perennial Planting: Sow directly outdoors a month before the first fall frost, or after the last spring frost. Light: Sun, partial shade Spacing: 24” Height: 36” Depth: ¼” Water: 1 ½” of water per week. Germination: 3 days. Notes: Blooms second year; readily spreading groundcover. Mirabilis Jalapa Annual Planting: Sow directly outdoors after the last spring frost. For earliest blooms, begin indoors 6-8 weeks before the last spring frost. Harvest Days: 105 Light: Sun, partial shade Spacing: 36” Height: 36” Depth: Lightly cover Water: 1” of water per week. Germination: 7-14 days. Notes: Loved by pollinators; flowers open in afternoon. Zinnia Elegans Annual Planting: Sow directly outdoors after the last spring frost, when the soil has warmed. For earliest blooms, begin indoors 4-6 weeks before the last spring frost. Harvest Days: 90 Light: Sun Spacing: 12” Height: 4’ Depth: ½” Water: 1” of water twice a week. Germination: 7-10 days. Notes: Tall, showy flowers great for the back of a flower bed. Alcea Rosea Biennial Planting: Sow directly outdoors after the last spring frost. For earliest blooms, begin indoors 10-12 weeks before the last spring frost. Harvest Days: 119 Light: Sun Spacing: 18” Height: 72” Depth: ¼” Water: 1” of water per week. Germination: 10-14 days. Notes: Massive, showy flowers; may bloom first year. Delphinium Annual Planting: Sow directly outdoors after the last spring frost. For earliest blooms, begin indoors 8-10 weeks before the last spring frost. Harvest Days: 85 Light: Sun Spacing: 12” Height: 48” Depth: ½” Water: 1” of water once or twice a week. Germination: 14-21 days. Notes: All parts of plant are poisonous; loved by pollinators. *Caution* Toxic to people, pets, and livestock. Wear gloves when handling, and plant away from areas pets can access. Tagetes Annual Planting: Sow directly outdoors after the last spring frost. For earliest blooms, begin indoors 6-8 weeks before the last spring frost. Harvest Days: 80 Light: Sun Spacing: 12” Height: 12” Depth: ¼” Water: 1 ½” of water per week. Germination: 7-21 days. Notes: Drought tolerant; deadhead often; great companion or sacrificial plant. Dahlia Pinnata Annual Planting: Sow directly outdoors after the last spring frost, when the soil has warmed. For earliest blooms, begin indoors 4-6 weeks before the last spring frost. Harvest Days: 90 Light: Partial sun Spacing: 12” Height: 18” Depth: 2” Water: 1” of water once or twice a week. Germination: 3-21 days. Notes: Drought tolerant; likes cool weather. Ipomoea Alba Annual Planting: Sow directly outdoors after the last spring frost. For earliest blooms, begin indoors 6-8 weeks before the last spring frost. Harvest Days: 110 Light: Sun Spacing: 24” Height: 20” Depth: ½” Water: 1” of water per week. Germination: 14-21 days. Notes: Night blooming; grow on a fence, railing, or trellis. Callistephus Chinensis Annual Planting: Begin indoors 6-8 weeks before the last spring frost. Harvest Days: 80 Light: Sun Spacing: 12-18” Height: 36” Depth: 1/8” Water: 1” of water per week. Germination: 14-21 days. Notes: Loves cool weather; use for late season color. Cosmos Bipinnatus Annual Planting: Sow directly outdoors after the last spring frost. For earliest blooms, begin indoors 4-6 weeks before the last spring frost. Harvest Days: 65 Light: Sun Spacing: 12” Height: 36” Depth: Lightly cover Water: After the plant has germinated it can go without being watered regularly. Water once or twice a week if the weather is unusually dry. Germination: 14-21 days. Notes: Easy growing; heat and drought tolerant. Xerochrysum Bracteatum Annual Planting: Sow directly outdoors 1-2 weeks before the last spring frost. For earliest blooms, begin indoors 4-6 weeks before the last spring frost. Harvest Days: 84 Light: Sun Spacing: 12” Height: 36” Depth: 1/4" Water: 1” of water per week. Germination: 7-10 days. Notes: Drought tolerant; requires support. Dianthus Barbatus Biennial Planting: Sow directly outdoors after the last spring frost. For earliest blooms, begin indoors 4-5 weeks before the last spring frost. Harvest Days: 110 Light: Sun, partial shade Spacing: 12” Height: 18” Depth: ⅛” Water: 1” of water per week. Germination: 14-21 days. Notes: Popular with pollinators. Tropaeolum Majus Annual Planting: Begin indoors 4-6 weeks before the last spring frost. Relocate outdoors after the last spring frost. Harvest Days: 60 Light: Sun Spacing: 6-8” Height: 3-5’ Depth: 1/4” Water: 1” of water per week. Germination: 10-14 days. Notes: Thrives in poor soil; good choice for hanging baskets. Helianthus Annuus Annual Planting: Sow directly outdoors after the last spring frost. Harvest Days: 110 Light: Sun Spacing: 12” Height: 72” Depth: ½” Water: 1” of water per week. Germination: 7-14 days. Notes: Giant, blood-orange and mahogany blooms; requires support. Viola Tricolor Annual Planting: Begin indoors 6-8 weeks before the last spring frost. May also be sown in late summer for autumn blooms. Harvest Days: 80 Light: Sun, partial shade Spacing: 8” Height: 10” Depth: ⅛” Water: 1” of water once or twice a week. Germination: 7-14 days. Notes: Prefers some shade in hottest months.All Sorts Sunflowers
Bachelor's Buttons
Bells of Ireland
Blanket Flowers
Borage
Calendula
California Poppy
Candy Stripe Cosmos
Crazy Daisy
Crego Asters
Dahlia Zinnias
Double Shirley Poppy
Evening Primrose
Four O'Clocks
Giant Zinnias
Hollyhocks
Larkspur
Marigolds
Mixed Dahlias
Moonflowers
Powder Puff Asters
Sensation Cosmos
Strawflower
Sweet William
Trailing Nasturtiums
Velvet Queen Sunflowers
Violas