Old Cobblers Farm™ Wicked Growth Roses Fertilizer

Rose Fertilizer – 10-20-15 Formula for Lush Blooms, Strong Roots & Vibrant Growth

Nurture stunning blooms and vigorous growth with Old Cobblers Farm Rose Fertilizer (10-20-15 NPK) — a premium blend crafted to support the unique needs of roses throughout their growing cycle. With boosted phosphorus and potassium, this formula enhances flowering, strengthens stems, and fortifies root systems for fuller bushes and longer-lasting blossoms.

Ideal for hybrid teas, climbing roses, floribundas, shrub roses, and more — whether in garden beds, containers, or along trellises.

Key Benefits:

Stimulates Flowering & Color
10% Nitrogen encourages steady green growth to support lush foliage.
20% Phosphorus powers big, bold blooms and promotes deep root establishment.
15% Potassium boosts petal strength, disease resistance, and flower longevity.

Strengthens Overall Plant Health
Builds resilient plants with improved structure, stronger stems, and enhanced drought tolerance.

Perfect for All Rose Types
Supports both first-year plantings and established roses with season-long vitality.

Feeds Continuously for Weeks
Slow-release formula ensures consistent nutrition for lasting floral performance.

Perfect For:

Hybrid Tea Roses
Floribundas
Climbing Roses
Shrub Roses
Grandifloras
Miniature Roses
Landscape & Groundcover Roses
English and Heirloom Varieties

How to Use:

New Roses: Mix ½–1 cup into planting hole soil before watering in.
Established Roses:

Small/young bushes: ½ cup per plant

Mature/large bushes: 1–2 cups per plant

Apply around the drip line, away from the base, and work lightly into the soil. Water deeply.

Feeding Frequency:
Reapply every 4–6 weeks during the growing season (spring to early fall). Stop feeding 6–8 weeks before first frost in colder climates.

Why Choose Old Cobblers Farm™ Wicked Growth Roses Fertilizer?

Roses require a thoughtful balance of nutrients to perform their best. The 10-20-15 ratio provides just the right amount of nitrogen for lush green leaves, elevated phosphorus for abundant flower production and root strength, and potassium for sturdy stems and long-lasting blossoms. This formula works in harmony with your soil to promote continuous growth and floral displays throughout the season.
 

Product Options

Choose the right size for your rose garden needs: 5 lbs | 10 lbs | 15 lbs | 20 lbs. Perfect for both small home gardens and larger landscape projects.