Roses — Spray B (Ca-B at bud-opening transition)
Zone: Roses — front of house · Stage: bud-crack-to-pre-bloom (NOT once petals show color)
Ca for petal cell-wall integrity + B for bud-to-flower transition. Runs 3–4 days after Spray A. CA TANK (separate from any sulfates).
Products (4)
| # | Product | mL/L | Role |
|---|---|---|---|
| 1 | Base-Line | 2.0 | fulvic gel — Ca-tank safe; chelator |
| 2 | Topraq-B | 0.6 | B — ~30 ppm, conservative; Ca-tank safe; ~12 drops |
| 3 | Topraq-Ca | 3.0 | Ca — ~360 ppm; THE Ca tank, no sulfates ever |
| 4 | Bacto-Line | 1.5 | Bacillus shield — LAST in tank; apply within 4h of mix |
Intentionally excluded
alga-line — Optional — could add 1–2 mL/L for biostimulant boost; Ca-tank safe.any_sulfate — Ca + sulfate → precipitation (hard rule from inventory).fast-line — Optional in Ca tank — Cem omitted for now (Ca-tank pH already in target via citric).topraq-cu — On opening buds → petal burn; also kills Bacto-Line.Total product ~7.1 mL/L. Cem house recipe — empirically validated 2026-05-14 evening at cracking-bud stage. Bacto added in Ca tank without issue. Also applied to all 5 jasmines from leftover tank same evening (app-2026-05-14-jasmines-001) — opportunistic, not stage-prescribed for jasmines.