How to Grow Gardenview Scarlet

Wikimedia Commons

Gardenview Scarlet

Rhododendron 'Gardenview Scarlet'

shrub

Gardenview Scarlet is a deciduous azalea cultivar known for its vibrant scarlet-red flowers that bloom in mid to late spring. This compact, multi-stemmed shrub grows 4-6 feet tall and wide, making it ideal for landscape borders and woodland gardens. The foliage turns bronze-purple in fall before dropping, providing seasonal interest.

When should you plant Gardenview Scarlet in your zone?

Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.

Get my Gardenview Scarlet timeline →

Example Gardenview Scarlet timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Gardenview Scarlet

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Gardenview Scarlet

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Gardenview Scarlet dates for your own zip code.

Growing Conditions

☀️
Sun: Partial shade, 3-4 hours of filtered morning sun; dappled afternoon shade preferred
💧
Water: Keep soil consistently moist but never waterlogged; water deeply 1-2 times weekly during growing season and drought. Mulch to retain moisture and keep roots cool.
📏
Spacing: 48 inches
📅
Days to maturity: Flowering begins in 2-3 years from young plants; full mature size achieved in 8-10 years
🌱
Planting depth: Plant so top of root ball is level with or slightly above soil surface; do not bury the crown

Soil

Type: Well-draining, acidic loamy soil rich in organic matter
pH: 4.5-6.0
Amendments:
Peat moss Composted bark Aged compost Sulfur (if pH adjustment needed)

Growing Zones

Find your zone →

Thrives in zones 5-7, with acceptable performance in zones 4b-8a

4b 5a 5b 6a 6b 7a 7b 8a

Sign up free to see if Gardenview Scarlet grows in your zone — and get a personalized planting timeline.

Get my Gardenview Scarlet timeline →

Growth Stages

1

Establishment

First season

Young plant establishing root system with minimal growth above ground; foliage sparse and dark green

Water consistently; mulch heavily; avoid fertilizer first year; protect from wind and extreme heat

2

Vegetative Growth

Spring through early summer, years 1-3

Shoot elongation with dark green, narrow deciduous leaves arranged alternately along stems; branches become more dense

Water during dry spells; light pruning to shape; apply balanced fertilizer in spring for acid-loving plants only if needed

3

Flowering

Mid-May to early June, 2-4 weeks

Terminal flower buds open into clusters of scarlet-red, funnel-shaped flowers with distinctive stamen; blooms cover the plant

Do not fertilize heavily during bloom to avoid flower damage; deadhead spent flowers just below the cluster if desired; maintain moisture

4

Post-Bloom Foliar Growth

June through August

New leafy shoots emerge from branch tips; foliage expands and thickens; plant builds carbohydrates for next year's buds

Continue watering; light fertilizer application after bloom may boost next year's flowering; prune only to correct shape

5

Dormancy Preparation

September through November

Leaf color shifts to bronze-purple tones; leaves are shed completely; flower buds set on branch tips for next spring

Reduce watering frequency but do not allow soil to fully dry; do not prune; avoid late-season fertilizer which can promote tender new growth

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Black Walnut (Juglans nigra) Shallow-rooted trees competing for moisture Plants preferring alkaline soil Windy, exposed locations

Common Pests

  • Spray undersides of leaves with insecticidal soap or neem oil in May-June; improve air circulation; remove heavily infested leaves

  • Increase humidity by misting; spray with water to dislodge; use miticide if severe; maintain consistent moisture

  • Ensure good air circulation; avoid overhead watering; apply sulfur-based fungicide if needed; remove affected leaves

  • Ensure excellent drainage; avoid waterlogging; do not plant in poorly drained sites; fungicide drenches as preventive in susceptible areas

Uses

🌿

Spring Flowering Landscape

Ornamental

Gardenview Scarlet's brilliant scarlet blooms provide dramatic color in mid-spring gardens, especially striking in woodland settings and shade borders. Use as a focal point or mass planting in foundation beds. [source]

🦋

Pollinator Support

Wildlife

The abundant nectar-rich flowers attract bees, hummingbirds, and other pollinators during spring blooming season. The dense branching structure provides shelter for nesting birds. [source]

🏠

Cut Flower Arrangements

Household

The long-lasting scarlet flower clusters are excellent for spring bouquets and arrangements, adding vibrant color indoors for 1-2 weeks when cut in early bloom. [source]

🌿

Fall Color Interest

Ornamental

As a deciduous azalea, Gardenview Scarlet develops striking bronze-purple fall foliage before leaf drop, extending landscape interest beyond spring bloom. [source]

Harvest Tips

This is an ornamental shrub grown for flowers, not harvested for food. Cut flower stems for indoor arrangements in early morning; strip lower leaves and use sharp pruners. Spent flower clusters can be removed by hand just below the base (deadheading), which may encourage additional branching.

Fun Facts

  • 🌱 Gardenview Scarlet is a Knap Hill hybrid azalea, bred specifically for hardiness in northern climates where traditional evergreen azaleas struggle.
  • 🌱 Deciduous azaleas like Gardenview Scarlet were introduced to European gardens in the 18th century from the Caucasus and have been refined through centuries of breeding.
  • 🌱 The brilliant scarlet color comes from anthocyanin pigments and deepens with age on the individual flower cluster, creating depth of color that changes throughout the bloom period.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Join 30,000 gardeners planning their gardens with LizPlants.

Get your personalized Gardenview Scarlet planting timeline

Tell us your zip code and we'll calculate exactly when to start Gardenview Scarlet seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.

Get my Gardenview Scarlet timeline →