Crown Jewels® Imperial Boost 0-15-11 1lb

Crown Jewels® Imperial Boost 0-15-11 1lb — OMRI Listed Organic PK Booster

Crown Jewels® Imperial Boost by Royal Gold LLC is a premium dry organic granular PK booster formulated for use during the critical late-bloom and fruiting phase of plant development. With an OMRI Listed® and CDFA Approved certification and a nitrogen-free 0-15-11 NPK ratio, Imperial Boost delivers a powerful surge of phosphorus and potassium precisely when plants need it most — driving dense floral development, promoting sugar and carbohydrate accumulation, and supporting the highest possible quality at harvest in certified organic growing programs.

The nitrogen-free formula is intentional: during the late stages of the bloom cycle, nitrogen can inhibit the final push of ripening and resin development that defines harvest quality. By eliminating nitrogen and concentrating on phosphorus and potassium, Imperial Boost aligns perfectly with the plant's nutritional priorities in the final weeks of flowering.

Key Features & Benefits

• OMRI Listed® & CDFA Approved: Certified for use in certified organic production under both the USDA National Organic Program (via OMRI) and California organic regulations (via CDFA), providing maximum compliance confidence for organic growers.
• Nitrogen-Free 0-15-11 PK Profile: Eliminates nitrogen to avoid late-bloom growth suppression and focuses entirely on delivering elevated phosphorus and potassium during the final and most critical stage of the flowering cycle.
• Phosphorus for Late-Bloom Energy: High phosphorus at 15% supports the energy-intensive final stages of flower and fruit development — driving ATP production, bud filling, and the accumulation of phospholipids and other essential compounds in maturing flowers.
• Potassium for Quality & Ripening: At 11%, potassium drives sugar translocation to developing flowers and fruits, enhances resin and essential oil accumulation, and supports the cellular processes that govern final harvest quality and aromatic expression.
• Organic Granular Convenience: Easy to measure and apply as a top dressing during the late bloom phase. Organic granular release ensures gentle, biologically mediated nutrient delivery without the risk of salt burn associated with high-dose synthetic PK boosters.

Who Should Use This

Crown Jewels® Imperial Boost is the premium late-bloom supplement of choice for certified organic growers and living soil practitioners who want to maximize the quality and yield of their flowering crops without synthetic inputs. Use it during the final 2–4 weeks of the bloom cycle as a targeted PK boost, paired with a gradual reduction in nitrogen-containing fertilizers. Combine with the full Crown Jewels® line — All Purpose, Grow, and Bloom — for a complete organic nutrition program from vegetative growth through final harvest.

Compatibility

Crown Jewels® Imperial Boost is best used in soil, living soil, peat-based, and coco coir growing media. Compatible with the full Crown Jewels® product line and other organic soil amendments. Not designed for use in recirculating hydroponic systems. Can be used in conjunction with organic bloom enhancers and biological inoculants. Avoid combining with high-nitrogen organic fertilizers during the late-bloom phase when the goal is to maximize the PK boost effect.

Frequently Asked Questions

Why is nitrogen excluded from a bloom booster?

During the late flowering phase, plants benefit most from maximized phosphorus and potassium nutrition for flower filling, sugar accumulation, and ripening. Nitrogen during this period can stimulate continued vegetative activity that competes with flowering and may delay or reduce the quality of the final harvest. A nitrogen-free PK booster avoids this by providing only what late-bloom plants actually need.

When should I start using Crown Jewels® Imperial Boost?

Imperial Boost is most effective during the final 2–4 weeks of the bloom cycle, when plants have entered the bud-filling and ripening phase. Apply according to label directions, typically transitioning from your primary bloom fertilizer (Crown Jewels® Bloom) to Imperial Boost as the finish phase begins.

Can I combine Imperial Boost with other Crown Jewels® products?

Yes. Imperial Boost is designed to complement the Crown Jewels® line. During the late bloom phase, many growers phase out Crown Jewels® Grow completely and reduce Crown Jewels® Bloom while introducing Imperial Boost to shift the nutritional profile toward a heavy PK finish.

Is 0-15-11 safe for plants — isn't that a lot of phosphorus?

At recommended application rates in organic growing media, the 0-15-11 NPK ratio is safe and appropriate for late-bloom use. Organic granular phosphorus and potassium sources release at a biologically modulated rate, avoiding the immediate high-concentration delivery that can cause issues with some synthetic PK boosters. Always follow label application rates.

What crops benefit most from Crown Jewels® Imperial Boost?

Any flowering or fruiting crop grown in certified organic soil or soilless growing environments can benefit from Imperial Boost during the late bloom phase. It is particularly well-suited for high-value flowering crops in indoor cultivation environments where maximizing floral density, aromatic complexity, and overall harvest quality is the primary goal.