Tom Doyle's All Natural 4 4 4 Premium Fertilizer

Tom Doyle's All Natural 4-4-4 Premium Fertilizer is a balanced, fish-based fertilizer designed to nourish blackberry plants from dormancy through flowering. This organic formula helps replenish soils and promote steady growth. Most soils today are depleted of nutrients, making a quality, natural option essential for healthy blackberry shrubs.

With a 4-4-4 NPK ratio, this fertilizer delivers balanced nutrition for roots, new shoots, and blossoms. The fish-based formula supplies natural micronutrients and supports soil biology, helping plants take up nutrients more efficiently.

Key benefits include:

• Balanced 4-4-4 NPK for steady growth, strong roots, and flowering.
• Fish-based, organic—helps enrich soil biology and nutrient uptake.
• Easy to apply around the base of blackberry plants with minimal risk to foliage.
• Designed for blackberry care—apply when dormancy ends and again at the start of flowering for best results.

Also known as Tom Doyle’s Organic Blackberry Special 4-4-4 Fertilizer, this all-natural option is a practical choice for gardeners seeking natural nourishment that supports fruiting and plant health in a sustainable way.