Botanic Garden >> Gardening > >> Question and Answer >> Seeding and Propagation

When to Direct-Sow Flower Seeds in Rhode Island

Sowing Schedule for Zone 6a (RI)

Last frost ~May 10. Soil temps guide germination.

Plant	Sow Outdoors	Notes
Black-eyed Susan (Rudbeckia)	After last frost	Perennial; blooms year 2
Cleome	After last frost	Warm soil needed
Morning Glory	After last frost, soil 60°F+	Soak seeds 24 hrs
Hollyhock	Early spring (light frost OK)	Biennial; blooms year 2
Moonflower Vine	After last frost, soil 65°F+	Soak 24 hrs; blooms late summer
Purple Coneflower	Early spring (cool temps OK)	Perennial; blooms year 2

Tips

Prepare weed-free bed; sow at recommended depth.
Keep moist until germination.
Thin to proper spacing.
Perennials rarely bloom first year from seed.

Seeding and Propagation: Gardenia Propagation: Why Cuttings Beat Seeds; Starting Hummingbird Vine (Trumpet Vine or Cypress Vine) from Seed: ID & Stratification; Troubleshooting Trumpet Vine Seed Failure: Bad Seed vs. Technique; Hummingbird Vine Seeds: Two Species, Different Pods; Sowing Salal (Gaultheria shallon) Seeds in Western Washington; Why Greenhouse Peppers Outpace Home-Started Ones; When to Collect and Stratify Japanese Maple Seeds; Cyclamen Seed Sowing Timing; Propagating Ampelopsis aconitifolia (Vine): Seed Stratification Is Key; Spring Overseeding in Northern Connecticut: Crabgrass Conflict

Garden Articles

Growing Grapes from Seed in Tropical Cameroon

Growing Trumpet Vine from Seed in a Container to Control Spread

Propagating Wild Grape Vines from Seed: Stratification and Caution

When to Harvest and Plant Foxtail Palm Seeds

Mystery Vine: Large Leaves, Yellow Flowers, and Gourd-Like Fruit

Creeping Cucumber (Melothria pendula): Edible Vine with Cucumber-Flavored Fruit

Moon Vine Toxicity: Seeds Can Cause Illness, But Handling Is Safe

Plants

When and How to Transplant Crowded Lettuce and Broccoli Seedlings

Top Sources for Bonsai Seeds: Misho, Evergreen & Dallas Bonsai Reviewed

How to Grow Heliotrope from Seed: Fragrant Vintage Flowers

Ready, Set, Sow! Answers to Seed Starting FAQs

Fall Vegetable Planting Calendar: Turnips, Mustard, Beets, Radishes

When to Direct-Sow Heirloom Tomato Seeds Outdoors

Harvesting and Storing Moon Vine Seeds for Next Season

Copyright © www.100flowers.win Botanic Garden All Rights Reserved