The Story
Plant Bio
Rhododendrons are broadleaf evergreen or deciduous shrubs in the heath family that prefer acidic, highly organic soils with sharp drainage. Their shallow root systems bear open funnel-shaped blooms held in terminal clusters above smooth, leathery leaves.
'Conlep' is a multi-stemmed evergreen azalea that forms an upright, rounded shrub four to six feet tall with narrow glossy foliage. It produces three-inch purple and white striped flowers in multiple flushes across spring, summer, and fall.
Uses & Benefits:
Bred from more than one wild species, so it has no species page of its own.
Essentials
At a Glance
Plant Type
Shrub
Height
72"
Width
72"
Light
Partial Sun
Zones
6, 7, 8, 9, 10
Water
Moderate
Humidity
Moderate to High
Lifespan
Perennial
Native To
Garden origin (North America)
Toxicity
Toxic to humans and pets
Bloom period
Spring – Fall
In flower about 9 months of the year
Planting
How to Grow
- Select a site receiving 4 to 6 hours of morning sunlight with afternoon shade protection.
- Amend sandy or dense soils with rich organic compost to lower pH and retain moisture without waterlogging.
- Dig a shallow hole twice as wide as the root ball and plant so the crown sits slightly raised above the surrounding grade.
- Apply a 2 to 3 inch layer of pine bark or pine needle mulch over the root zone, keeping it away from direct stem contact.
- Water thoroughly at planting and establish a consistent irrigation schedule to keep shallow roots evenly moist.
Pro Tip
Set the top of the root ball one to two inches above soil level when planting to maintain optimal aeration and prevent Phytophthora root rot.
Keep It Thriving
Care Guide
Do
- Maintain consistent soil moisture throughout the hot summer months.
- Use an acid-formulated fertilizer twice per year in spring and mid-summer.
- Protect root structures with a thick organic bark mulch.
Don't
- Do not plant in alkaline or heavy, poorly drained clay soil.
- Do not cultivate the soil around the base, as this severe root damage.
- Do not prune late in the summer, which removes emerging buds for the following season.
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| Pest Check | ||||||||||||
| Prune |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Autumn Twist Azalea questions
What zones can Autumn Twist Azalea grow in?
Autumn Twist Azalea is hardy in USDA Zones 6–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
When does Autumn Twist Azalea bloom?
Autumn Twist Azalea typically blooms in spring through fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Autumn Twist Azalea need full sun?
Autumn Twist Azalea does best in part shade.
More Rhododendron to compare

Catawba Rhododendron
Rhododendron catawbiense

Great Laurel Rhododendron
Rhododendron maximum

Double White Rhododendron
Rhododendron x hybrida 'Double White'

Flame Azalea
Rhododendron calendulaceum

Bone Hardy Azalea
Rhododendron x hybrida 'Bone Hardy Azalea Sampler'

Rhododendron x hybrida Double Pink
Rhododendron x hybrida 'Double Pink'
Keep exploring
Explore the genus
Hardy in your zone?
Grow Autumn Twist Azalea with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.































































































