Basket & Planter Formula

Best Hanging Basket Fertilizer (10-10-10): Balanced Feeding for Lush, Overflowing Containers All Season Buy on Old Cobblers Farm

Updated April 2026 By the Old Cobblers Farm Team

Old Cobblers Farm™ Wicked Growth Hanging Plants Fertilizer

by Wicked Growth — Littleton, NH

10-10-10
N-P-K Ratio
"The per-basket formula designed for the unique demands of hanging containers. Balanced NPK in a 1–2 tablespoon dose feeds foliage, blooms, and roots in the confined soil volume of hanging baskets and elevated planters."
10-10-10
Balanced NPK
160
Max Baskets / 5 lb bag
1–2 tbsp
Per Basket Dose
4 Sizes
5, 10, 15, 20 lbs
🪴

Per-Basket Dosing

1–2 tablespoons per hanging basket — no measuring cups, no sq ft calculations. Sprinkle on the soil surface and water in. Simple enough for anyone.

⚖️

Balanced for Container Life

Hanging baskets need foliage (N), blooms (P), and root health (K) simultaneously in a tiny soil volume. 10-10-10 feeds all three without overemphasizing any one nutrient.

📦

80–160 Baskets Per Bag

At 1–2 tbsp per basket, one 5 lb bag feeds 80–160 hanging containers per application. One bag can last an entire porch for the whole season.

💧

Dissolves for Liquid Feeding

Can be dissolved in water for liquid drenching — helpful for densely planted baskets where top-dressing is difficult to reach the soil surface.

📅

Every 4–6 Weeks

Frequent watering leaches nutrients from small containers faster than garden beds. Reapply every 4–6 weeks to keep nutrition consistent.

🌸

Supports Continuous Bloom

10% phosphorus maintains flower production in petunias, million bells, fuchsia, and trailing verbena — the heavy-blooming plants that define great hanging baskets.

✅

All Hanging Basket Plants

Petunias, fuchsia, million bells, sweet potato vine, ivy, ferns, begonias, trailing verbena, lobelia — every basket plant benefits from balanced feeding.

🇺🇸

Trusted by 20,000+ Growers

Developed in Littleton, New Hampshire. Sold nationwide on Amazon, Walmart, eBay, and theoldcobblersfarm.com.

NPK Ratio10-10-10
Derived FromUrea (10–20%), Diammonium Phosphate (10–20%), Potassium Chloride / Muriate of Potash (40–50%), Silicon Dioxide (4–53%)
Item FormGranular
Release SpeedModerate-release
Application Rate1–2 tbsp / basket
MethodTop-dress on soil surface or dissolve in water
FrequencyEvery 4–6 weeks during growing season
Sizes5 lb | 10 lb | 15 lb | 20 lb
SupportsPetunias, fuchsia, million bells, sweet potato vine, ivy, ferns, begonias, trailing verbena, lobelia, all hanging basket plants
SetupsHanging baskets, patio planters, window boxes, elevated containers, porch pots
What We Love
✓ Simple per-basket dosing — 1–2 tablespoons, no math
✓ 80–160 baskets per bag — outstanding value
✓ Balanced NPK for foliage, blooms, and roots in small soil volume
✓ Dissolves for liquid feeding in dense baskets
✓ Works for all hanging basket and elevated container plants
Worth Noting
— Balanced ratio — heavy-blooming baskets may benefit from extra P (see 15-30-15)
— Reapply every 4–6 weeks due to leaching in containers
Buy on Old Cobblers Farm →
Available in 5 lb | 10 lb | 15 lb | 20 lb
Feature Old Cobblers Farm™ Wicked Growth Hanging Plants Fertilizer Water Soluble Bloom Booster Smart-Release Plus Premium Water Soluble Plant Food Petunia Feed Bloom! Liquid Concentrate Tiger Bloom Liquid Fertilizer Bloom Plus Liquid Plant Food Pump & Grow Liquid Bloom Annuals & Perennials Granular Hanging Basket Plant Food Spikes
NPK 10-10-10 15-30-15 15-9-12 24-12-17 20-6-22 1-3-2001 2-8-2004 10-54-10 1-2-2001 4-4-2004 10-10-10
Phosphorus 10.0% 30.0% 9.0% 12.0% 6.0% 3.0% 8.0% 54.0% 2.0% 4.0% 10.0%
Potassium 10.0% 15.0% 12.0% 17.0% 22.0% 1.0% 4.0% 10.0% 1.0% 4.0% 10.0%
Form Granular
Sizes 5 lb | 10 lb | 15 lb | 20 lb 1.5 lb, 5.5 lb 1-8 lb 2.5 lb 1.5 lb 8-24 oz 16-32 oz 1.5 lb 16 oz 4 lb 24 pk
Release Speed Moderate-release
The Competition

Water Soluble Bloom Booster

by Miracle-Gro
15-30-15
N-P-K
Sizes1.5 lb, 5.5 lb
Price$10-$25

Smart-Release Plus

by Osmocote
15-9-12
N-P-K
Sizes1-8 lb
Price$12-$35

Premium Water Soluble Plant Food

by Proven Winners
24-12-17
N-P-K
Sizes2.5 lb
Price$22-$25

Petunia Feed

by Jack's Classic
20-6-22
N-P-K
Sizes1.5 lb
Price$20

Bloom! Liquid Concentrate

by Espoma Organic
1-3-2001
N-P-K
Sizes8-24 oz
Price$10-$18

Tiger Bloom Liquid Fertilizer

by FoxFarm
2-8-2004
N-P-K
Sizes16-32 oz
Price$18-$35

Bloom Plus Liquid Plant Food

by Schultz
10-54-10
N-P-K
Sizes1.5 lb
Price$12

Pump & Grow Liquid Bloom

by Dr. Earth
1-2-2001
N-P-K
Sizes16 oz
Price$12-$15

Annuals & Perennials Granular

by Jobe's Organics
4-4-2004
N-P-K
Sizes4 lb
Price$12

Hanging Basket Plant Food Spikes

by Vigoro
10-10-10
N-P-K
Sizes24 pk
Price$6

🪴

Per-Basket Dosing

1–2 tablespoons per hanging basket — no measuring cups, no sq ft calculations. Sprinkle on the soil surface and water in. Simple enough for anyone.

⚖️

Balanced for Container Life

Hanging baskets need foliage (N), blooms (P), and root health (K) simultaneously in a tiny soil volume. 10-10-10 feeds all three without overemphasizing any one nutrient.

📦

80–160 Baskets Per Bag

At 1–2 tbsp per basket, one 5 lb bag feeds 80–160 hanging containers per application. One bag can last an entire porch for the whole season.

💧

Dissolves for Liquid Feeding

Can be dissolved in water for liquid drenching — helpful for densely planted baskets where top-dressing is difficult to reach the soil surface.

Common Questions