Light Needs
Mature Height
Mature Spread
Growing Zones
Obsession Nandina is a compact evergreen shrub with rich red new growth and a clean, upright shape. It matures about 3 to 4 feet tall and wide, giving it presence while still fitting easily into borders and foundation beds. New foliage emerges scarlet red, then matures to deep green, with cool weather often strengthening the red tones again. Our landscape designer uses this Nandina domestica 'Seika' when a bed needs year-round foliage color at mid-height.
‘Seika’ means sacred fire in Japanese, a fitting reference to the color of the young leaves. This Southern Living selection has a dense habit and slow to moderate growth, so it stays more refined than older heavenly bamboo types. Obsession Nandina is deer resistant, water-wise once established, and useful in accents, containers, slopes, mass plantings, and low hedges. It is grown mainly for foliage, with flowering and fruiting limited or absent in typical landscape plantings.
Obsession Nandina Care
Plant Obsession Nandina in part sun to shade, with brighter light giving the strongest red foliage. It adapts to sandy, loamy, or clay soil as long as drainage is good. Slightly acidic to neutral soil is preferred, since alkaline conditions can cause chlorosis.
Water deeply after planting, and keep the root zone evenly moist during the first growing season. Established plants tolerate short dry periods, but occasional deep watering during prolonged heat keeps foliage fuller. Fertilize yearly in early spring with a balanced slow-release shrub fertilizer. Mulch 1 to 2 inches deep to conserve soil moisture and protect roots, leaving the stems uncovered.
Obsession Nandina usually holds its shape with little pruning. In late winter or early spring, remove damaged canes or cut a few older stems at the base to refresh the plant. Avoid shearing across the top, since selective cuts preserve the layered foliage texture.
Obsession Nandina Spacing
Space Obsession Nandina 3 to 4 feet apart for a full hedge, slope planting, or massed foliage display. Use the wider spacing for individual accent shrubs or mixed borders. For containers, choose a pot at least 18 inches wide with drainage holes, and water when the upper 2 inches of potting mix are dry.
Build a sunny mixed bed with Obsession Nandina as the red foliage layer behind Indian hawthorn and false cypress for evergreen structure with different textures. Agastache and tickseed can carry seasonal flowers through the open spaces while sharing sun and well-drained soil. In containers, Obsession Nandina can stand as the permanent shrub, with fan flower or marigold used seasonally around the edge for warm-weather color.
Obsession Nandina Plant Facts
Growing Conditions
- Hardiness ZonesGrowing Zones
- USDA Zones 6 to 10 (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 Shade to Full Sun (4+ Hours Direct Sun)
- Mature Height
- 3-4 Feet
- Mature Spread
- 3-4 Feet
- Growth Habit
- , Dwarf
- Water Needs
- Average
Flowers & Foliage
- Flower Colors
- Flower Description
- n/a
- Bloom Time
- Spring (Berries in 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
- , Red, Green
- Foliage Description
- Green to Rich Red
- Foliage Type
- , Evergreen, Variegated
- Seasonal Interest
- , Fall Interest, Winter Interest, 4 Season Interest
Garden Benefits
Plant Overview
- Common Name
- Obsession™ Nandina
- Also Known As
- Obsession Nandina
- Botanical Name
- Nandina domestica 'Seika' PP21891
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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This plant cannot be shipped to the following states: 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.
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