Light Needs
Mature Height
Mature Spread
Growing Zones
Southgate Radiance, Rhododendron ‘Tyler Morris’, are more heat tolerant than the more common Rhododendrons. Light purple blooms open from deep lavender buds in spring. Plant as an accent, an informal hedge, or in a mass planting. Works in large planters, too. Attracts hummingbirds and butterflies.
Southgate Radiance Rhododendron Care
Water regularly to establish and regularly as needed. Plant in well-drained, organically rich soil. Mulch to maintain even moisture and to maintain even soil temperatures. Fertilize with an acid fertilizer in early spring. Protect from hot, afternoon sun and strong winds. Prune to shape and to remove spent blooms after flowering in late spring.
Southgate Radiance Rhododendron Spacing
Plant 6-7 feet apart in shrub borders and in mass plantings. For an informal hedge, space 4 ½-5 feet apart.
Compare Southgate® Rhododendrons
See bud and flower color, size, and the best use for each heat-tolerant Southgate® rhododendron.
| Variety | Buds & Flowers | Size | Best For | Why Choose It |
|---|---|---|---|---|
| Deep lavender buds; ruffled pink to light purple flowers with a reddish-purple blotch | 4′ H × 5′ W in 10 years | Cool-toned beds with white or pink spring bloomers | The only lavender-purple in the series | |
| Deep pink buds; pink ruffled flowers | 3′ H × 4′ W | Containers, small beds, and under low windows | Most compact; glossy leaves that curl back slightly | |
| Medium pink buds; white flowers with a maroon blotch | 4′ H × 5′ W in 10 years | Foundation plantings and mixed shrub borders | Pink buds and white flowers on the plant at the same time | |
| Light pink buds; white flowers with purple specks | 4′ H × 5′ W in 10 years | Brightening shady woodland edges | Softest pink buds; a different Taiwanese parent than its siblings | |
| Deep pink buds; crisp white flowers with purple spots | 4′ H × 6′ W in 10 years | Evergreen hedges and mass plantings | Widest, densest plant in the series | |
| Lavender-pink flowers with dark pink undersides and speckles | 4–5′ H × 4–5′ W | A specimen shrub near an entry or patio | Large trusses that look like small bouquets |
Southgate Radiance Rhododendron Plant Facts
Growing Conditions
- Hardiness ZonesGrowing Zones
- USDA Zones 6 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 Shade to Part Sun (3-6 Hours Direct Sun)
- Mature Height
- 4-5 Feet
- Mature Spread
- 4-5 Feet
- Growth Habit
- , Mounded
- Water Needs
- Average
Flowers & Foliage
- Flower Colors
- , Purple, Pink
- Flower Description
- Deep Lavender Buds to Light Purple Flowers
- Bloom Time
- Mid-Spring
- Blooms On
-
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
- Right after flowering
- Foliage Color
- , Green
- Foliage Description
- Green
- Foliage Type
- , Evergreen
- Seasonal Interest
- , Spring Flowering, Winter Interest, 3 Season Interest, 4 Season Interest
Garden Benefits
Plant Overview
- Common Name
- Southgate® Radiance™ Rhododendron
- Also Known As
- Southgate Radiance Rhododendron
- Botanical Name
- Rhododendron 'Tyler Morris'
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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