Graffiti GRDN Seeds Black Hollyhock Double — 30 Perennial Flower Seeds for Tall Borders

Overview

Introduce dramatic height and enduring color to your garden with Graffiti GRDN's Black Hollyhock Double. This striking perennial can reach 3 to 6 feet tall, creating a bold backdrop for lower growers and adding architectural presence to borders, fences, and walls. The deep, velvety blooms bring a touch of elegance to cottage-style plots while inviting pollinators to linger in the sunny spots you designate for them.

Why this variety stands out

• Unusually tall hollyhock that reaches 3–6 feet for a standout vertical accent
• Perennial habit with blooms in the second year after planting
• Ideal for cottage gardens, background borders, or along fences and walls
• Attracts pollinators such as bees, butterflies, and hummingbirds
• Planting instructions are printed on the back of the seed package

Growing tips and practical care

Seed-to-surface success starts with smart germination and careful transplanting. For better emergence, soak seeds in warm water for 10–12 hours before planting. If you start indoors, use peat pots to protect roots during transplanting. Plant 2–3 seeds per pot at roughly 1/8 inch deep and maintain about 68°F (20°C) until shoots appear. Once seedlings show, thin to 8–12 inches apart and gradually harden them off before moving outside.

Outdoors, place plants 10–15 inches apart in well-drained soil in a sunny, wind-protected area. Regular watering supports healthy establishment. As the plants mature, you’ll enjoy tall, long-lasting blooms that add drama to the late spring and early summer landscape.

Garden uses and design ideas

• Combine with lower-growing perennials for layered garden interest
• Line fences or walls to create a vertical focal point
• Pair with lighter foliage plants to highlight the dark, velvety blossoms

Notes on quality and support

The seed packet provides clear planting directions on the back, helping you plan spacing, germination, and maintenance. If you have questions or encounter issues, Graffiti GRDN offers support to help you troubleshoot and optimize your results.