Your week-by-week guide to stacking flowers and feeding soil — the right way.
Whether you're a tent grower, backyard hobbyist, or running raised beds all summer long, one of the most common questions we get is:
"How do I feed with PCFSA products?"
Below is the full breakdown of how to feed with PCFSA Flower Stack™, Super Worm Castings, and Worm Tea Concentrate — what to use, when to use it, and why it works.
🌸 Flower Stack™ Feeding Schedule (Soil / Soilless, Hand-Watering)
| Grow Week | Phase | PCFSA Flower Stack Application |
|---|---|---|
| 1–3 | Vegetative | Water only (build roots + leaf mass) |
| 4 | Pre-Flower | ½ vial per gallon — jumpstart stacking |
| 5–6 | Early Bloom | 1 vial per gallon — feed every 7 days |
| 7–8 | Mid Bloom | 1 vial per gallon — every 5–7 days |
| 9–10 | Late Bloom | Optional: 1 vial per gallon every 7 days |
| 11+ | Ripening / Flush | Water only — no flushing required! |
✅ Always mix fresh. Do not store mixed solution.
✅ If using in reservoirs, you must aerate and circulate.
💧 Worm Tea Concentrate Feeding Schedule
| Timing | Application Rate | How to Use |
|---|---|---|
| Every 7–10 days | 2–4 oz per gallon | Soil drench, root zone soak, or foliar spray |
| Transplant shock | 4 oz per gallon | Water in immediately after repotting |
| Mid Bloom Boost | 4 oz per gallon (with Flower Stack feed) | Enhances microbial activity during stacking |
| Stress Recovery | 4–6 oz per gallon | Use after weather swings, pest hits, etc. |
✅ Shelf-stable — no refrigeration needed
✅ Shake before use. Use within 24 hrs of mixing with water.
🪱 Super Worm Castings Usage Guide
| Application | How Much to Use | When to Use It |
|---|---|---|
| Top dress (container) | ¼ cup – 1 cup per plant | Every 2–4 weeks |
| Transplant/root zone | 1–2 cups per hole or blended into new mix | At transplant |
| Raised bed prep | 1–2 lbs per 10 sq ft — mix into top 2–4 inches of soil | Before each season |
| Tea brewing (optional) | ½–1 cup per gallon, steep 24 hrs | For DIY worm teas |
✅ Castings are non-burning — safe for seedlings to late bloom
✅ Mix into compost, potting soil, or top dress anytime
🌿 Pro Feeding Tips
-
Use all 3 products together for best results
→ Flower Stack for targeted bloom feeding
→ Castings for soil health & microbe base
→ Worm Tea for biological activity & nutrient uptake -
Water thoroughly after top-dressing with castings
-
Feed Flower Stack on a consistent weekly schedule
-
Worm Tea is great for early bloom AND late recovery
🛒 Product Quick Links
💬 Still Have Questions?
Head to our Contact Page, or shoot us a DM on Facebook or Instagram @OfficialPCFSA.
We’ve got your back — and your bloom.