How to Grow Autumn Mum 'Dark Red Crimson Glory Garnet Glow'
Wikimedia Commons
Autumn Mum 'Dark Red Crimson Glory Garnet Glow'
Chrysanthemum × morifolium 'Dark Red Crimson Glory Garnet Glow'
flowerA striking cultivar of garden mum with deep crimson-red to garnet-colored double blooms that typically appear in fall. This variety is bred for vibrant color intensity and reliable autumn flowering, making it a popular choice for seasonal gardens and cut flower arrangements. The compact, bushy plants produce abundant blooms over an extended period.
When should you plant Autumn Mum 'Dark Red Crimson Glory Garnet Glow' in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example Autumn Mum 'Dark Red Crimson Glory Garnet Glow' timeline · Pittsburgh, PA (Zone 6b)
-
Plant Autumn Mum 'Dark Red Crimson Glory Garnet Glow'
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
First Autumn Mum 'Dark Red Crimson Glory Garnet Glow' blooms
Around Jun 26≈ 70 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Autumn Mum 'Dark Red Crimson Glory Garnet Glow' dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Zones 4-9; can overwinter in zones 3b with mulch protection
Sign up free to see if Autumn Mum 'Dark Red Crimson Glory Garnet Glow' grows in your zone — and get a personalized planting timeline.
Get my Autumn Mum 'Dark Red Crimson Glory Garnet Glow' timeline →Growth Stages
Establishment
2-3 weeksYoung transplants with emerging shoots and leaf development; plant appears compact and leafy
Water regularly to establish root system. Pinch growing tips when 6 inches tall to encourage branching. Fertilize every 2 weeks with balanced formula.
Vegetative Growth
6-8 weeks (June-July)Plant develops multiple stems and dense foliage; no buds visible yet. Bushy, rounded shape forms.
Continue pinching tips until late summer (early August) to promote compact, branched form. Maintain consistent moisture. Feed every 2 weeks.
Bud Formation
2-3 weeks (late August-early September)Small flower buds appear at branch tips as day length shortens; buds are tightly clustered and green
Stop pinching. Reduce nitrogen fertilizer; switch to phosphorus-rich bloom booster. Maintain steady watering. Watch for pests.
Blooming
4-6 weeks (September-October)Buds open to reveal full, deep crimson-red double flowers with multiple layers of petals. Plant becomes a mass of color.
Continue watering at soil level. Deadhead spent flowers to extend bloom. Support branches if needed with gentle staking. Reduce fertilizer frequency.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Remove and destroy infested buds; spray with neem oil or insecticidal soap weekly starting in bud stage; avoid wetting foliage
-
Increase humidity by misting undersides of leaves; spray with insecticidal soap or miticide; prune heavily infested foliage
-
Spray with strong water stream; apply insecticidal soap or neem oil; introduce ladybugs
-
Yellow sticky traps; spray with neem oil or insecticidal soap; improve air circulation
-
Remove affected leaves; spray with spinosad or neem oil; encourage predatory parasitic wasps
Uses
Edible Flower Garnish
CulinaryChrysanthemum petals are edible and mildly peppery, traditionally used in Asian cuisine and as a delicate garnish for salads, desserts, and cocktails. [source]
Traditional Tea & Wellness
MedicinalChrysanthemum flowers have been used in Traditional Chinese Medicine for centuries to make calming tea that may reduce heat in the body and support eye health. [source]
Cut Flower & Arrangement
HouseholdDeep crimson mums are prized for floral arrangements, bouquets, and fall seasonal displays, lasting significantly longer than many cut flowers when properly conditioned. [source]
Dried Flowers & Crafts
CraftMum petals and blooms dry beautifully and retain their deep color, making them ideal for pressed flower projects, wreaths, potpourri, and dried arrangements. [source]
Pollinator Support
WildlifeAutumn mums provide essential late-season nectar and pollen for butterflies, bees, and other pollinators during fall migration and before winter dormancy. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
For cut flowers, harvest in early morning after dew dries, cutting stems at least 6-8 inches long with 3-4 sets of leaves. Mums last 2-3 weeks in a vase with fresh water changed every 2-3 days. For garden display, simply deadhead spent flowers to encourage continued blooming throughout the season.
Fun Facts
- 🌱 Chrysanthemums are the second most popular cut flower worldwide after roses, and hold special cultural significance in Japan where they symbolize loyalty and truth.
- 🌱 The 'Dark Red Crimson Glory Garnet Glow' cultivar is bred to have an exceptionally late bloom time, often flowering as late as November in zone 6-7, providing color when most gardens have faded.
- 🌱 Mums contain natural pyrethrin compounds that repel insects, which is why they're sometimes used in companion planting and have been traditionally used to make natural insecticides.
Gardening Terms
New to gardening? Learn about terms used in this guide:
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Autumn Mum 'Dark Red Crimson Glory Garnet Glow' planting timeline
Tell us your zip code and we'll calculate exactly when to start Autumn Mum 'Dark Red Crimson Glory Garnet Glow' seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.
Get my Autumn Mum 'Dark Red Crimson Glory Garnet Glow' timeline →