GARDENWISE 13-13-13 Slow-Release Granular Fertilizer 5 qt — All-Purpose NPK for Lawns, Vegetables & Flowers, Feeds up to 8 Weeks

This all-purpose 13-13-13 granular formula supplies equal parts nitrogen, phosphorus and potassium to support steady green growth, root development and overall plant vigor. The slow-release granules dissolve gradually, reducing the need for frequent applications while helping maintain consistent nutrient levels in garden beds, lawns and potted plants. Suitable for a wide range of outdoor plants including roses, vegetable rows, ornamental flowers, shrubs and shade or sun lawns, this product offers an easy-to-apply option for both beginner gardeners and experienced landscapers.

How will this fertilizer affect my lawn and when should I apply it?

Applied according to label directions, GARDENWISE 13-13-13 supports uniform greening and steady turf growth without a rapid flush. Because nutrients release over time, it’s best used at the start of the active growing season or as a maintenance feeding during warm months. Avoid applying during drought stress or when grass is dormant to prevent waste and runoff.

• Use in spring at green-up or midsummer for maintenance
• Feeds for up to 8 weeks per application
• Even granules distribute nutrients consistently across the lawn
• Compatible with common turf varieties like St. Augustine

Can I use it on vegetables, flowers and potted plants?

Yes—this balanced N-P-K ratio makes it versatile for many garden crops and ornamentals. Phosphorus encourages root development for transplants and fruiting plants, while nitrogen supports leafy growth and potassium helps plants tolerate environmental stress. For containers and small beds, apply at a reduced rate and reapply as recommended to avoid overfeeding.

• Works for tomatoes, peppers, herbs and flowering annuals
• Reduces frequency of feeding for potted plants
• Helps seedlings and transplants develop stronger roots
• Follow container-specific rates to prevent salt buildup

What makes the slow-release formulation beneficial?

Slow-release granules deliver nutrients steadily instead of all at once, which lowers the risk of fertilizer burn and reduces nutrient loss to leaching. This controlled release also means fewer applications—saving time and reducing disturbance to beds and lawns. The granule size promotes good soil contact so plants can access nutrients as they need them.

• Gradual nutrient delivery for consistent uptake
• Fewer feedings—up to eight weeks per application
• Less risk of scorch compared to fast-release fertilizers
• Fine granules improve soil contact and absorption

How should I apply GARDENWISE 13-13-13 for best results?

Use a broadcast spreader for lawns to ensure even coverage and a hand spreader or scoop for beds and containers. Lightly water after application to begin nutrient release and anchor granules into the soil. Always measure according to the recommended rate for the plant type and container size to avoid over-application.

• Broadcast spreader for lawns; hand spread for beds
• Water in lightly after spreading to activate granules
• Follow label rates for different plant types and containers
• Store sealed in a cool dry place to preserve efficacy

Who this product is for: Gardenwise 13-13-13 Slow Release Granular Fertilizer is aimed at homeowners, small-scale vegetable growers, and landscape enthusiasts who want a reliable, low-maintenance feeding solution. It’s a practical choice for anyone managing mixed plantings—lawns, flower beds, shrubs, and potted specimens—who prefers fewer applications and consistent nutrient delivery. Professional landscapers seeking a balanced, multipurpose fertilizing option for general maintenance will also find this formula convenient and effective when used as directed.

Ingredients

Total Nitrogen (N): 13.00% Available Phosphate (PO5): 13.00% Soluble Potash (K2O)13.00%