Down To Earth™ Bio-Turf™ 8-3-5 Natural Granular Fertilizer — 4lb / OMRI Listed®

Down To Earth Bio-Turf 8-3-5 Natural Granular Fertilizer — 4lb, OMRI Listed

Down To Earth Bio-Turf 8-3-5 is an entirely natural granular fertilizer formulated to build deep, resilient root systems while driving vigorous above-ground growth. With an 8-3-5 NPK profile, the nitrogen-rich formula delivers strong early season shoot growth and green foliage development, while the elevated potassium content supports stress tolerance during temperature swings, drought periods, and high-production demands. OMRI Listed for use in certified organic production programs.

Bio-Turf's naturally derived slow-release nitrogen fraction feeds soil biology gradually rather than overwhelming the root zone with a salt flush, and it is especially effective as a soil amendment for heavy-feeding vegetable crops like corn, tomatoes, and leafy greens. This 4lb size suits both routine top-dressing and larger bed-preparation applications.

Key Features & Benefits

• 8-3-5 NPK profile: High-nitrogen formula drives strong vegetative growth; elevated potassium improves stress tolerance and supports high-demand production crops.
• Encourages deep root development: Natural nitrogen sources support gradual nutrient release that stimulates extensive root growth, reducing irrigation requirements and improving drought resilience.
• Reduces seasonal stress: Potassium-fortified formula helps plants maintain osmotic balance and metabolic function during temperature fluctuations and water stress events.
• 4lb bag: Sized for smaller gardens, containers, and trial applications.
• Versatile application: Suitable for lawns, vegetable gardens, greenhouse growing beds, and container growing for heavy-feeding crops like corn, tomatoes, and leafy greens.

Who Should Use This

Greenhouse operators, market gardeners, and outdoor vegetable growers who need a reliable natural granular fertilizer that feeds plants consistently through the growing season without the salt loading of synthetic programs benefit from Bio-Turf. It is particularly well suited to soil-based and amended growing media where natural nitrogen release and soil biology improvement are priorities alongside plant nutrition.

About Down To Earth

Down To Earth has manufactured organic and natural fertilizers in Eugene, Oregon, since 1977, building its product line on single-ingredient meals and blends made without synthetics, growth stimulants, or low-quality fillers.

Frequently Asked Questions

Can Bio-Turf be used in container growing?

Yes. Bio-Turf can be incorporated into potting mixes or applied as a top-dress for container-grown vegetables and herbs. Use at the lower end of recommended rates in containers to avoid over-fertilization in the confined root zone.

How often should Bio-Turf be applied?

Application frequency depends on crop type and growing conditions. For most vegetable crops and lawns, monthly applications through the growing season maintain consistent nutrition, following the label rate for the specific crop and application method.

Is Bio-Turf safe for seedlings?

Use caution with seedlings. Apply at reduced rates or wait until plants are established before applying granular fertilizers directly to the root zone, since tender seedling roots are more susceptible to fertilizer burn than established plants.

Can Bio-Turf be used with synthetic fertilizers?

Yes. Bio-Turf can be combined with synthetic fertilizers as part of an integrated nutrition program. Account for the nitrogen, phosphorus, and potassium contribution from Bio-Turf when calculating total nutrient inputs to avoid over-application.