Dahlia ‘Penhill Dark Monarch’
Description
One of the most striking large-flowered varieties we grow, the smoky-plum blooms of this moody giant are loved by all who visit our garden. Plants produce an abundance of huge, ruffled flowers on long stems.
Details
Form: informal decorative
Bloom size: 10 to 12 in
Site: full sun
Days to maturity: 80 to 100 days
Plant spacing: 12 to 18 in
Pinch: when 12 in tall
Bloom size: 10 to 12 in
Site: full sun
Days to maturity: 80 to 100 days
Plant spacing: 12 to 18 in
Pinch: when 12 in tall
Harvesting/Vase Life
Dahlias don’t unfurl much once they’ve been harvested so it’s important to not pick them too early. Harvest when blooms are three-quarters of the way open, but not overly ripe. Check the back of each flower head, looking for firm and lush petals versus papery or slightly dehydrated ones. Place into water with hydrator, or sear stem ends by placing into 160°F to 180°F (just off boiling) water and allow to cool for one hour. Expect a vase life of 5 days.
Details
Description
One of the most striking large-flowered varieties we grow, the smoky-plum blooms of this moody giant are loved by all who visit our garden. Plants produce an abundance of huge, ruffled flowers on long stems.
Details
Form: informal decorative
Bloom size: 10 to 12 in
Site: full sun
Days to maturity: 80 to 100 days
Plant spacing: 12 to 18 in
Pinch: when 12 in tall
Bloom size: 10 to 12 in
Site: full sun
Days to maturity: 80 to 100 days
Plant spacing: 12 to 18 in
Pinch: when 12 in tall
Harvesting/Vase Life
Dahlias don’t unfurl much once they’ve been harvested so it’s important to not pick them too early. Harvest when blooms are three-quarters of the way open, but not overly ripe. Check the back of each flower head, looking for firm and lush petals versus papery or slightly dehydrated ones. Place into water with hydrator, or sear stem ends by placing into 160°F to 180°F (just off boiling) water and allow to cool for one hour. Expect a vase life of 5 days.
Sources
How to Grow
Sources
How to Grow
Winter Mini Course: Seed-Starting 101
Learn how to start flowers from seed in this three-part video series
In our upcoming Winter Mini Course, you’ll learn everything you need to know to successfully start flowers from seed, including all of the necessary supplies, step-by-step instructions, special tips and tricks, and how to create a simple indoor seed-starting area.
