How To Grow Lavender Phenomenal PP# 24193 Plant Complete Growing Guide

How to Grow Lavandula x intermedia 'Phenomenal' PP#24193

Overview
Type: Evergreen perennial herb
Habit: Upright, mounding
Size: 24–36 inches tall, 24–36 inches wide
Bloom: Violet-purple flower spikes with a strong fragrance
Use: Pollinator gardens, herb gardens, borders, containers, cut and dried flowers

Light Requirements
Requires full sun for best growth and flowering.
A minimum of 6–8 hours of direct sunlight daily is recommended.
Insufficient light leads to weak growth and reduced blooming.

Temperature & Climate Fit
One of the more heat- and humidity-tolerant lavender varieties available.
Cold hardy to approximately -10°F.
Still benefits from excellent drainage and airflow in humid southern climates.

Watering
Low water needs once established.
Allow soil to dry between waterings.
Overwatering and constantly damp soil are the primary causes of decline.

Soil
Requires sharply draining soil.
Prefers sandy, rocky, or lean soil conditions.
Avoid heavy clay or overly rich soil unless heavily amended for drainage.

Fertilizing
Very low fertilizer needs.
Excess fertilizer reduces fragrance and creates weak growth.
Typically performs best with little to no supplemental feeding.

Maintenance
Prune lightly after flowering to maintain shape and encourage fullness.
Avoid cutting into old woody stems.
Remove spent blooms to improve appearance and encourage reblooming.

Pests & Problems
Generally resistant to pests and deer.
Root rot is the most common issue in humid or poorly drained conditions.
Fungal issues may occur with overcrowding or excessive moisture.

Landscape Use
Excellent for pollinator gardens, herb gardens, borders, and containers.
Highly attractive to bees and butterflies.
Useful for fresh-cut arrangements, dried flowers, and fragrance gardens.

Native Range
Hybrid derived from Mediterranean lavender species

Sun Exposure
Full sun

Water Requirements
Low; drought-tolerant once established

Pests and Problems
Root rot, fungal decline in poor drainage conditions

Heat and Sun Tolerance: Cold Tolerance
Excellent heat tolerance with proper drainage; strong cold hardiness

Growing Tips
In Gulf Coast climates, raised beds or berm planting greatly improve long-term success.
Avoid mulch directly against the crown to reduce moisture retention.
Space plants generously for airflow in humid environments.
Best performance occurs in lean, fast-draining soil with minimal irrigation once established.

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