Black Adder

from Agastache · “This hard-working group of perennials does so much. They bloom for a long time in wonderful colors atop tall, striking plants.” — How to Plant and Grow Agastache

from Agastache · “10-21 daysGermination” — Agastache Growing Guide — Planting, Spacing & Harvest Calendar

from Agastache · “90-120 daysHarvest” — Agastache Growing Guide — Planting, Spacing & Harvest Calendar

from Agastache · “Light Requirements: High” — Agastache | Proven Winners

from Agastache · “Keep soil consistently moist for seeds and seedlings, but mature plants may need only occasional watering” — How to Plant and Grow Agastache

from Agastache · “a pH between 6.0 and 8.0” — How to Plant and Grow Agastache

from Agastache · “space multiple plants 18 to 24 inches apart” — How to Plant and Grow Agastache

from Agastache · “1 to 3 feet” — How to Plant and Grow Agastache

from Agastache · “Division, Leaf Cuttings, Seed, Stem Cuttings” — How to Plant and Grow Agastache

from Agastache · “plant in early spring when the ground has thawed” — How to Plant and Grow Agastache

from Agastache · “deadheading your hummingbird mint will help extend the bloom period” — 9 Best Varieties of Agastache (Hummingbird Mint) for Your Garden

from Agastache · “Cut back after first flush of flowers to encourage repeat blooming.” — Agastache Growing Guide — Planting, Spacing & Harvest Calendar

from Agastache · “among foxgloves, lavender, and roses” — How to Plant and Grow Agastache

from Agastache · “Avoid near No avoid list yet.” — Agastache Growing Guide — Planting, Spacing & Harvest Calendar