Light Needs
Mature Height
Mature Spread
Growing Zones
The Monarch Queen of Hearts Butterfly Bush is unique not in form, but in color. These deep magenta flowers are absolutely stunning. The best part is, this bush is a repeat bloomer and can be encouraged to bloom even more. This unique perennial is a must-add to the garden for seasonal color that’s sure to make visitors notice.
This butterfly bush is a bit wider than it is tall, and certainly makes a good backdrop perennial for other more temporary annuals within a landscape. This perennial is valuable to the gardener, and to wildlife in more ways than one. It blooms from June through September, all the while providing the perfect habitat for butterflies and hummingbirds. To add to its value, this butterfly bush is deer resistant.
Monarch Queen of Hearts Butterfly Bush Care
This perennial is hardy in zones five through nine. The Monarch Queen of Hearts Butterfly Bush prefers full sun, but can get by in partial sun. It’s generally low maintenance in nature, and grows very quickly. Moist, well drained soil would be the best environment to plant in but due to drought tolerance, can be planted in typically dry soil. If an extreme drought is observed, this bush would need supplemental watering to maintain its vitality.
This bush can be pruned down to between 12 to 15 inches in the late winter. Spent blooms can also be removed to encourage more extended blooming.
Monarch Queen of Hearts Butterfly Bush Spacing
This butterfly bush is smaller than others. It reaches about two to three feet high, and should be spread three to four feet apart.
Compare Monarch® Butterfly Bushes
Compare flower color, foliage, mature size, and the features that set each Monarch® Butterfly Bush apart.
| Variety | Flowers | Foliage | Mature Size | Why Choose It |
|---|---|---|---|---|
| Royal purple | Gray-green | 3' H × 3.5' W | Compact, rounded form for smaller sunny spaces | |
| Pale periwinkle blue | Silvery green | 3' H × 5.5' W | Low, broad habit with cool-toned foliage and blooms | |
| Cerise to raspberry pink | Green | 3.5–4' H × 3.5–4' W | Intense pink 10-inch flower spikes on a rounded plant | |
| Lavender to blue-purple | Mint green | 3.5–4' H × 6–6.5' W | Extra-long two-tone flowers on a broad-spreading plant | |
| Magenta-purple | Golden yellow | 3.5–4' H × 4–5' W | Golden foliage adds color before flowering begins | |
| Light appleblossom pink | Dark green | 5' H × 6–6.5' W | Large, floriferous plant with soft pink flower spikes | |
| Magenta-red | Green | 2.5–3' H × 3.5–4' W | Compact form with richly colored flower panicles |
Monarch® Queen of Hearts Butterfly Bush Plant Facts
Growing Conditions
- Hardiness ZonesGrowing Zones
- USDA Zones 5 to 9 (perennial); grown as an annual elsewhere (outdoors year-round); grown indoors elsewhere (outdoors year-round); grown in containers elsewhere (grown as a seasonal crop)
- Sun Exposure
- Part Sun to Full Sun (5+ Hours Direct Sun)
- Mature Height
- 2-3 Feet
- Mature Spread
- 3-4 Feet
- Growth Habit
- , Mounded
- Water Needs
- Average
Flowers & Foliage
- Flower Colors
- , Pink, Red
- Flower Description
- Pink, Red
- Bloom Time
- Summer to Fall
- Blooms On
-
New Wood
?
"Blooms on" tells you which stems produce flowers, which decides when it's safe to prune.
- New Wood: Flowers form on stems that grow this season. Prune in late winter or early spring without losing blooms.
- Old Wood: Flower buds form on last year's stems. Prune right after flowering. Pruning in fall or early spring removes next year's blooms.
- Both New and Old Wood: Blooms on last year's stems and again on new growth, so it flowers even after a hard winter or a mistimed pruning. Prune lightly after the first flush of blooms.
- When to Prune
- Late winter to early spring, before new growth starts
- Foliage Color
- , Green
- Foliage Description
- Green
- Foliage Type
- , Semi-Evergreen, Deciduous
- Seasonal Interest
- , Summer Flowering
Garden Benefits
Plant Overview
- Common Name
- Monarch® Queen of Hearts Butterfly Bush
- Botanical Name
- BUDDLEIA MONARCH 'QUEEN OF HEARTS'
- Brand
- Plants That Work
- Plant Type
- Shrub
Simple Plant Spacing Calculator
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.
Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts
Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons
Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons
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We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
Starting January 1, 2026 all bushes, perennials & trees purchased come with an extended 1-year warranty for added confidence. If your plant dies due to a health issue within a year, we’ll make it right.
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.
Plant Addicts ships to the lower 48 states within the U.S. Unfortunately, we do not currently ship to Alaska, Hawaii, or internationally.
This plant cannot be shipped to the following states: ID, OR, AK, HI. These restrictions apply only to this specific plant due to agricultural regulations or other limitations. Other plants may still be available for shipping to these states.
If you have any questions about shipping restrictions, feel free to reach out to our team!