Landscape Supply

Blue Cohosh

$16.00 CAD

Sale Sold out

Blue Cohosh is a hardy perennial known for its blue-tinted spring growth and steel-blue berries in fall. Blue Cohosh flowers in spring in shades of blue, and performs best in part shade with moderate watering once established. This perennial matures to roughly 2-3 feet tall and 1.5-2 feet wide. It is ideal for planting in drifts through a border, or as a reliable cut flower, offering dependable colour that returns every year. Easy to establish and simple to maintain, Blue Cohosh rewards basic care with a reliable display season after season. A layer of mulch helps hold moisture and keeps roots cool in summer.

Mature height: 2-3 feet
Mature width: 1.5-2 feet
Bloom: Blue, spring
Light: Part Shade
Water: Moderate — about 2.5 cm of water per week in the growing season
Hardiness: Zone 3-8
Maintenance: Low maintenance
Pruning: Cut back to the ground in late fall or early spring; deadhead spent blooms through the season to encourage rebloom.

Size 1 Quart

Quantity 1 Plant

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🌿 Product Details

Latin Name: Caulophyllum thalictroides
📏 Current Size: <6 inches
🌱 Mature Size: Height: 2-3 feet | Width: 1.5-2 feet
☀️ Light: Part Shade
🧊 Hardiness Zone: 08-Mar
🍃 Foliage Colour: Green
🌸 Bloom Colour: Blue
🗓️ Bloom Period: Spring
🪴 Planting Instructions: Dig a hole slightly wider than the pot, keeping the top of the root ball level with the surrounding soil. Loosen circling roots before planting, backfill with native soil amended with compost, then water thoroughly to settle. Space plants about 1.5-2 feet apart and keep well watered through the first full season while roots establish. Plant in part shade.
💧 Care & Watering: Water moderate: about 2.5 cm of water per week in the growing season. Mulch to conserve moisture and moderate soil temperature, and feed with a balanced slow-release fertilizer in early spring. Cut back to the ground in late fall or early spring; deadhead spent blooms through the season to encourage rebloom.

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