Light Needs
Mature Height
Mature Spread
Growing Zones
With a neat mound habit, Bloomerang Showmound™ Lilac (Syringa x pubescens ‘SMNSPWF’) lights up gardens with frothy white flower clusters from late spring into early fall. Each cluster carries a sweet aroma that announces each bloom cycle. Reaching just 1.5 to 3 feet tall and 2 to 3 feet wide, it stays compact enough for patio corners yet impresses in larger borders, too. In our experience, its continuous blooms and tidy shape make it a rewarding choice for any sun-drenched planting scheme.
This dwarf shrub is known for disease-resistant foliage that holds up against summer rains, along with excellent cold hardiness down to USDA zone 3. Its re-blooming cycle lets you enjoy fragrant flowers after a brief rest following the first spring display, continuing their showy presence into late summer and early autumn. Deer typically avoid its leaves, and pollinators often pay friendly visits. Plant it in mass groupings, line a walkway with its crisp white color, or use it to create a charming low hedge.
Bloomerang Showmound™ Lilac Care
Give this lilac a spot in full sun for at least six hours each day and provide well-draining soil, preferably with a neutral to slightly alkaline pH. Water regularly during the initial growing season, then adjust to a moderate schedule once it’s established. Light fertilizing in early spring and again after the first bloom period can fuel its second flush of flowers. Keep an eye out for soggy ground since excess moisture can hinder healthy root development.
Once the first bloom display fades, you may trim off spent flower heads to promote more blooms in the second cycle, although trimming delays the rebloom. Avoid pruning too late in the season, since it can interfere with the next spring’s bud set. Container-grown plants require good-quality potting mix and consistent moisture, especially in warmer regions. Consider adding mulch around the base of landscape plants in colder areas to protect young roots through winter.
Bloomerang Showmound™ Lilac Spacing
Allow approximately 2 to 3 feet between plants when forming rows or mass plantings, giving each lilac room to maintain its dense silhouette. If you plan to use containers, choose one at least 14 inches wide to accommodate proper root growth.
Compare Bloomerang® Lilacs
Compare flower color, mature size, and the features that set each Bloomerang® lilac apart.
| Variety | Flower Color | Mature Size | Best For | Why Choose It |
|---|---|---|---|---|
| White | 1.5–3' H × 2–3' W | Containers, edging & small spaces | Smallest selection with fragrant white reblooming flowers | |
| Pink | 2.5–3' H × 2.5–3' W | Containers, low hedges & foundations | Compact choice with fragrant pure pink flowers | |
| Purple | 2.5–3' H × 2.5–3' W | Small beds, edging & containers | Dwarf purple-flowered option for gardens short on space | |
| Pink to pink-purple | 3–4' H × 3–4' W | Foundations, borders & containers | Compact upright habit with strong summer and fall rebloom | |
| Purplish pink | 3–5' H × 2–3' W | Narrow spaces, borders & cutting gardens | Narrower habit with flowers that blend purple and pink | |
| Purple-lavender | 4–5' H × 4–5' W | Hedges, foundations & specimens | Classic midsize Bloomerang® with a rounded habit and purple blooms | |
| Deep purple | 4–6' H × 4–6' W | Hedges, screens & larger borders | Largest selection with rich purple flowers and more screening presence |
Bloomerang Showmound Lilac Plant Facts
Growing Conditions
- Hardiness ZonesGrowing Zones
- USDA Zones 3 to 7 (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
- Full Sun (6+ Hours Direct Sun)
- Mature Height
- 1-3 Feet
- Mature Spread
- 2-3 Feet
- Growth Habit
- , Upright
- Water Needs
- Average
Flowers & Foliage
- Flower Colors
- , White
- Flower Description
- Frothy white flower clusters
- Bloom Time
- Spring to Fall
- Blooms On
-
Both New and Old 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
- Lightly, right after the first flush of flowers
- Foliage Color
- , Green
- Foliage Description
- Green
- Foliage Type
- , Deciduous
- Seasonal Interest
- , Spring Flowering, Summer Flowering
Garden Benefits
Plant Overview
- Common Name
- Bloomerang Showmound Lilac
- Also Known As
- Reblooming lilac
- Botanical Name
- Syringa pubescens 'SMNSPWF'
- Brand
- Proven Winners
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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