Cronk Big Bud Kit: Complete 5-Part System for Maximum ResultsUpdated 7 days ago
Big Bud Kit: The Complete 5-Part Professional Nutrient System

The Big Bud Kit delivers everything needed for professional results from seed to harvest: the proven Classic 3-Part foundation (Micro, Grow, Bloom) plus CalMag for deficiency prevention and Bud Booster for enhanced flowering performance. Five products working in synergy, bundled at a savings versus buying individually.
Kit Contents
| Product | NPK | Function | When to Use |
|---|---|---|---|
| Micro | 5-0-1 | Calcium, iron, micronutrients | Entire grow cycle |
| Grow | 2-1-6 | Nitrogen and potassium for veg | Seedling through transition |
| Bloom | 0-5-3 | Phosphorus and potassium for flower | Transition through harvest |
| CalMag | 2-0-0 | Calcium, magnesium, iron supplement | Entire grow cycle (especially coco/LED/RO) |
| Bud Booster | 0-1-3 | Concentrated PK for flowering | Weeks 2-6 of flower |
Why the Big Bud Kit Is the Complete Solution
No Missing Components
Building a nutrient program piece by piece creates opportunities for gaps:
- "I'll add CalMag later" → Deficiencies develop before you buy it
- "Bloom booster seems optional" → Flowers don't reach potential
- "I'm not sure what I need" → Trial and error wastes time and money
The Big Bud Kit eliminates these issues—everything is included and tested to work together.
Coordinated Products
All five products are formulated to complement each other:
- CalMag chelation is compatible with Micro's calcium
- Bud Booster's PK ratio enhances Bloom's flower nutrition
- No conflicting ingredients or problematic interactions
- Mixing order is straightforward and documented
Cost Savings
The kit is priced below the cost of purchasing five products individually—you get the complete system at a discount.
Complete Feeding Schedule
Mixing Rates (mL per gallon)
| Stage | CalMag | Micro | Grow | Bloom | Bud Booster |
|---|---|---|---|---|---|
| Seedling | 1 | 1 | 1 | 0.5 | — |
| Early Veg | 1-2 | 2 | 2 | 1 | — |
| Peak Veg | 1-2 | 3 | 3 | 1 | — |
| Transition | 1-2 | 2.5 | 2 | 2 | — |
| Early Flower | 1-2 | 2 | 1 | 2.5 | 1 |
| Peak Flower | 1-2 | 2 | 0.5 | 3 | 1-2 |
| Late Flower | 1 | 1.5 | 0 | 2.5 | 1 |
| Final Week | 0 | 0 | 0 | 0 | 0 |
Mixing Order (Critical)
- Water – Fill container to target volume
- Armadillo Armour – If using silicon additive (not included)
- CalMag – Add and stir to dissolve
- Micro – ALWAYS before Grow and Bloom
- Grow – Add at appropriate rate for stage
- Bloom – Add at appropriate rate for stage
- Bud Booster – During flowering only
- Check and adjust pH – After all nutrients mixed
Using Each Product
CalMag 2-0-0
Purpose: Prevents calcium and magnesium deficiencies
When to use: Every feeding, especially with coco, RO water, or LED lights
Signs you need it: Brown spots (calcium), interveinal yellowing (magnesium)
Pro tip: Use consistently from day one—prevention is easier than correction
Micro 5-0-1
Purpose: Foundation of every feed—calcium, iron, micronutrients
When to use: Every feeding from seedling through harvest
Critical: Always add FIRST among the three base nutrients
Pro tip: Micro provides the micronutrients that enable NPK utilization
Grow 2-1-6
Purpose: Nitrogen and potassium for vegetative growth
When to use: Highest during veg, reduced during flower, eliminated late bloom
Key function: Builds stems, leaves, and structural foundation
Pro tip: Reducing Grow during flower prevents unwanted vegetative growth
Bloom 0-5-3
Purpose: Phosphorus and potassium for flowering
When to use: Present throughout, increased during flowering stages
Key function: Drives flower initiation, development, and maturation
Pro tip: Zero nitrogen means pure bloom nutrition without veg interference
Bud Booster 0-1-3
Purpose: Extra PK for enhanced flower production
When to use: Weeks 2-6 of flowering (not during transition or final week)
Key function: Increases flower density, resin, and yields beyond base nutrition
Pro tip: Supplements rather than replaces Bloom—use both together
Growing System Adjustments
Soil
- Use rates as shown in schedule
- Feed every other watering, or every watering with light feeding
- CalMag may not be needed with hard tap water
Coco Coir
- Feed daily with nutrient solution
- CalMag is essential—coco binds Ca and Mg
- Consider 10-20% runoff to prevent salt buildup
Hydroponics
- Reduce rates by 30-50% (constant availability)
- Monitor EC closely—easier to burn in hydro
- Change reservoir weekly or maintain with top-offs
Optional Upgrades
The Big Bud Kit provides complete nutrition, but advanced growers can add:
- Armadillo Armour – Silicon for stronger stems and pest/disease resistance
- Sticky Bandit – Carbohydrates for enhanced terpene production
- Monkey Juice – Beneficial bacteria for root health and nutrient cycling
Compatibility
Compatible Growing Systems
- All soil types
- Coco coir (all formats)
- Hydroponics (DWC, RDWC, NFT, drip)
- Aeroponics
Compatible Cronk Additives
- Armadillo Armour, Sticky Bandit, Monkey Juice
- All products in the kit work together
NOT Compatible
- PuurOrganics products (different system)
- Other brand base nutrients
Frequently Asked Questions
What's the difference between the Classic 3-Part Kit and Big Bud Kit?
The Big Bud Kit includes everything in the Classic 3-Part (Micro, Grow, Bloom) PLUS CalMag for deficiency prevention and Bud Booster for enhanced flowering. It's the complete package—no additional purchases needed for most grows. The kit is also priced lower than buying all five products separately.
Do I need CalMag if it's already in the kit?
CalMag is included because most growers need it—especially in coco, with RO water, or under LED lights. If you're growing in soil with hard tap water, you may not need it at every feeding, but having it available for prevention and correction is valuable.
When should I start using Bud Booster?
Start Bud Booster when flowers actually begin forming—typically 1-2 weeks into the flowering stage. Don't start during the transition week. Continue through weeks 1-6 of flowering, then reduce or stop in the final 1-2 weeks before harvest.
Can I add more products to the Big Bud Kit?
Yes. The Big Bud Kit provides complete nutrition, but you can enhance results with Armadillo Armour (silicon), Sticky Bandit (carbohydrates), and Monkey Juice (beneficial bacteria). These are optional upgrades for growers wanting maximum quality.
Need Help?
Our grow support team is here to help you get the best results with the Big Bud Kit. Contact us at [email protected] or visit our Grower's Resource Center for detailed feed charts.