General Hydroponics FloraNova Bloom Nutrients

Switch to FloraNova Bloom when your plants enter the flowering phase, typically triggered by changing photoperiods (12/12 light cycle) or natural seasonal transitions for outdoor grows. Make the switch as soon as you flip to flowering light or see the first signs of flower initiation. The reduced nitrogen and elevated phosphorus/potassium in FloraNova Bloom supports reproductive growth rather than vegetative expansion. If you are starting new clones or seedlings during this time, consider using General Hydroponics RapidStart Nutrients to promote vigorous root development.

Yes, FloraNova Bloom is designed for use throughout the entire flowering phase from initiation to harvest. The 4-8-7 NPK ratio provides adequate nitrogen to prevent early senescence while delivering the phosphorus and potassium plants need for flower development. For enhanced finishing, you can supplement with products like Liquid KoolBloom during late flowering. Alternatively, General Hydroponics Dry KoolBloom Nutrients is an excellent choice for a potent final ripening boost.

FloraNova Bloom contains 4% calcium and 2% magnesium, which is sufficient for most growing situations. However, if you're growing in coco coir (which binds calcium), using RO or heavily filtered water with near-zero starting minerals, or running heavy-feeding strains, you may benefit from a supplement like General Hydroponics CALiMAGic Nutrients. Monitor your plants for signs of deficiency—tip burn, interveinal chlorosis, or brittle stems—before adding supplements.

The thick consistency is a result of FloraNova's patented high-density suspension technology. This allows higher concentrations of reactive minerals to remain stable in one bottle without precipitating or reacting prematurely. The thickness indicates quality and potency—you're getting more minerals per milliliter than watery competitors. Always shake vigorously before use to redistribute suspended nutrients.

FloraNova Bloom delivers comparable results to two-part systems but with significantly less complexity. Two-part formulas require separate bottles to prevent nutrient reactions, while FloraNova's suspension technology keeps everything stable in one container. You sacrifice some customization ability (fixed NPK ratio) but gain convenience and eliminate mixing errors. For most growers, the performance-to-convenience ratio makes FloraNova Bloom the better choice compared to multi-bottle systems like the FloraGro, FloraBloom, and FloraMicro series.

Yes, you can blend the two formulas during the flowering transition if you want to gradually reduce nitrogen rather than making an abrupt switch. Start with a 75% Grow / 25% Bloom ratio in week 1 of flowering, move to 50/50 in week 2, then 25% Grow / 75% Bloom in week 3 before switching to 100% Bloom. This gradual transition can benefit heavy-feeding strains that need more nitrogen support during early flowering stretch by utilizing FloraNova Grow alongside the bloom formula.

Target EC depends on your crop type and growth stage. For most flowering crops, aim for 1.2-1.8 EC (600-900 PPM on the 500 scale) during early flowering, increasing to 1.6-2.2 EC (800-1100 PPM) during peak flowering. The feed charts provide starting points, but always monitor plant response and adjust accordingly. Heavy feeders may tolerate higher EC, while sensitive strains need lower concentrations.

Flushing practices vary by grower preference. Some growers flush with plain water for the final 1-2 weeks to reduce nutrient content in finished flowers, while others continue feeding at reduced strength until harvest. If you choose to flush, consider using FloraKleen to help mobilize accumulated salts. Monitor trichome development and plant fade rather than adhering to rigid flushing schedules—harvest timing based on maturity produces better results than calendar-based flushing.