PAPER STREETPerennials®
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Tall cottage-garden annual

Rocket Larkspur ‘Imperial Mix’ / Delphinium

Elegant blue, violet, pink, and white flower spires for vertical cottage-garden drama.

Rocket Larkspur ‘Imperial Mix’ gives a garden the kind of height and movement that makes everything planted around it feel more intentional. Its long flower spires bring a classic cottage-garden silhouette to borders, cutting patches, and mixed annual plantings—and the color range keeps it from feeling too formal.

Rocket Larkspur · Delphinium

CoverageUse the size-specific coverage printed on your Paper Street bag.
SunlightFull sun; shelter tall stems from the strongest wind when practical.
When to PlantDirect sow in fall or very early spring for the strongest cool-season start.
Rocket Larkspur ‘Imperial Mix’ flower spires
Paper Street Perennials product photograph.

What you’re planting

Individual flower seed

  1. Rocket Larkspur ‘Imperial Mix’ (Delphinium consolida)
01

What to Expect

Let the planting develop.

A cool-season annual that makes upright, branching flower stems. Fall- or early-spring-sown plants can develop a more settled display than late warm-weather sowings.

02

How to Plant

Prepare, sow, and press.

Direct sow onto prepared soil, cover lightly, press for good contact, and keep evenly moist through germination. Avoid transplanting when practical; larkspur is happiest when sown where it will grow.

Read the complete planting guide →

Plant with confidence

Use the guide on your bag, then follow the steps for successful establishment.

Planting Guide →