Cronk Bonnie & Clyde Kit: Complete Guide to Autoflower NutritionUpdated 7 days ago
Bonnie & Clyde Kit: Simplified Autoflower Nutrition

The Bonnie & Clyde Kit is a specialized two-part nutrient system formulated exclusively for autoflowering plants. Bonnie (6-5-4) provides complete vegetative nutrition during the critical 3-4 week growth window, while Clyde (3-6-5) delivers optimized flowering nutrition for the rapid 5-7 week bloom phase. Simplified feeding without 3-part complexity.
Kit Contents
| Product | NPK | Stage | Timing |
|---|---|---|---|
| Bonnie | 6-5-4 | Vegetative | Weeks 1-4 from seed |
| Clyde | 3-6-5 | Flowering | Weeks 5-10 from seed |
Why Autoflowers Need Different Nutrition
The Autoflower Challenge
Autoflowers present unique nutritional challenges:
- Compressed timeline: 8-12 weeks total, vs. 4-6 months for photoperiods
- No recovery time: Mistakes cannot be corrected—there's no time
- Rapid transitions: Veg to flower happens in days, not weeks
- Smaller plants: Less root mass, lower nutrient storage capacity
- Fixed genetics: Flowering starts automatically regardless of conditions
Why 3-Part Systems Don't Fit
Traditional 3-part systems require gradual ratio adjustments over weeks. Autoflowers don't have weeks to spare:
- By the time you've optimized veg ratios, flowering has started
- Gradual bloom transitions become rushed and imprecise
- Small plants are sensitive to concentration errors during adjustments
- The complexity adds risk without benefit
The Bonnie & Clyde Solution
Stage-specific complete formulas eliminate ratio complexity:
- Bonnie: Everything autoflowers need during veg—just one product
- Clyde: Everything autoflowers need during flower—just one product
- Clean switch: Use one, then the other—no mixing, no transitions
- Micronutrients included: Both formulas contain complete micronutrient profiles
Feeding Schedule
Complete Autoflower Schedule (mL per gallon)
| Week | CalMag | Bonnie | Clyde | Bud Booster | Notes |
|---|---|---|---|---|---|
| 1 (Seedling) | 1 | 2 | — | — | Light feeding, roots establishing |
| 2 | 1-2 | 3-4 | — | — | Increase as plant grows |
| 3 | 1-2 | 4-5.75 | — | — | Peak veg, watch for pre-flowers |
| 4 (Transition) | 1-2 | — | 9-10 | — | Switch when pre-flowers appear |
| 5 | 1-2 | — | 10-12 | 1 | Flowers forming, add Bud Booster |
| 6 | 1-2 | — | 12-14 | 1-2 | Peak flower development |
| 7 | 1-2 | — | 14-15 | 1-2 | Maximum feeding |
| 8 | 1 | — | 12-14 | 1 | Begin reducing |
| 9 | 1 | — | 10-12 | — | Tapering for finish |
| 10 | — | — | 0-5 | — | Final week, flush or minimal |
Important Notes
- CalMag is required – Use at every feeding throughout the grow
- Bud Booster optional – Not included in base kit, but recommended for bigger yields
- Timing varies – Schedule is typical; adjust based on your plant's development
When to Switch from Bonnie to Clyde
Look for Pre-Flowers
Switch from Bonnie to Clyde when you see the first pre-flowers:
- White pistils (hairs) emerging at branch nodes
- Small flower clusters beginning to form
- Usually happens week 3-4 from seed
Don't Wait Too Long
With autoflowers, early bloom nutrition matters:
- Flower sites form rapidly once triggered
- Plants need bloom nutrition immediately
- Waiting even a few days costs potential yield
- When in doubt, switch earlier rather than later
Clean Switch, No Mixing
Never mix Bonnie and Clyde together. The clean switch from one complete formula to another matches how autoflowers naturally transition—rapidly and completely.
Why CalMag Is Required
Autoflowers Are Especially Vulnerable
- Fast growth consumes calcium and magnesium rapidly
- No recovery time if deficiencies develop
- Once stunted, autoflower yields are permanently reduced
- Prevention is the only strategy that works
High-Risk Situations
- Coco coir: Binds Ca/Mg—CalMag essential
- LED lighting: Increases Ca/Mg demand significantly
- RO water: No mineral content—CalMag required
- Heavy-yielding genetics: More demand on nutrition
Upgrade Option
The Prema Kit includes Bonnie & Clyde PLUS CalMag and Bud Booster—the complete autoflower package.
Mixing Instructions
Mixing Order
- Water – Fill container to target volume
- Armadillo Armour – If using silicon (optional)
- CalMag – Required at every feeding
- Bonnie OR Clyde – Never both together
- Bud Booster – During flowering only (optional)
- Other additives – Sticky Bandit, Monkey Juice, etc.
- Check and adjust pH – After all nutrients mixed
Target pH
- Soil: 6.0-6.5
- Coco: 5.8-6.2
- Hydro: 5.5-6.0
Compatibility
Compatible Additives
- CalMag 2-0-0 (required)
- Bud Booster 0-1-3 (recommended)
- Armadillo Armour (silicon)
- Sticky Bandit (carbohydrates)
- Monkey Juice (beneficial bacteria)
NOT Compatible
- PuurOrganics products (different system)
- Classic 3-Part base nutrients (don't mix systems)
Frequently Asked Questions
Why use Bonnie & Clyde instead of Classic 3-Part for autoflowers?
Autoflowers have compressed lifecycles (8-12 weeks total) that make gradual 3-part ratio adjustments impractical. Bonnie & Clyde simplifies feeding with stage-specific complete formulas: use Bonnie during veg, switch to Clyde when flowers appear. No ratio calculations, no gradual transitions—just straightforward autoflower nutrition.
Should I mix Bonnie and Clyde together?
No. Never mix Bonnie and Clyde together—they are designed for distinct growth stages. Use Bonnie during vegetative growth (weeks 1-3), then switch completely to Clyde when pre-flowers appear.
Why is CalMag required with Bonnie & Clyde?
Autoflowers are especially prone to calcium and magnesium deficiencies because they grow fast with no time to recover from nutritional problems. CalMag at every feeding prevents deficiencies that would permanently stunt autoflower yields.
When exactly should I switch from Bonnie to Clyde?
Switch when you see pre-flowers—the first pistils (white hairs) appearing at branch nodes. This typically happens around week 3-4 from seed. Don't wait for full flower formation.
Need Help?
Our grow support team is here to help you get the best results with Bonnie & Clyde. Contact us at [email protected] or visit our Grower's Resource Center for detailed autoflower feed charts.