🌱 Verdify

12 min read

April 01, 2026

Generated lab notebook from daily_summary, plan_journal, and setpoint audit data. It is intentionally chronological and may include in-progress cycles before validation.

🌅 Morning Cycle (6:04 AM) — iris-20260401-0600

Status

validated

Outcome score

8/10

Changed parameters

vpd_high, mister_engage_kpa, mister_all_kpa, mister_pulse_gap_s, temp_low

Result: Day 1 midday check (12h into 72h plan): tracking perfectly. Indoor peaked at 71.2F, VPD max 1.04. Zero heat/VPD stress. Overcast lesson confirmed again — full cloud cover + 47F outdoor = zero stress. Midday RH dip to 39% outdoor only produced 1.04 kPa indoor at 71F. Grow lights compensating DLI (sensor 1.3 mol, est actual 4.5). Zone spread excellent at 1.1F (overcast = uniform). Cost on track at 4.53. Thu snap-back experiment still pending.

Reflection

Validating previous cycle: iris-20260331-0600

Previous hypothesis: Tue stays benign (overcast, cool, no VPD stress). Wed has a surprise afternoon dry window (RH crashing to 27% at 2PM before recovering). Thu is the big event: 37F dawn with 82% RH ramps to 73F with 13% RH — full stress day after 48h of cool moisture. Plants may be less acclimated to sudden VPD spike after 2 days of comfort. Pre-positioning Lesson #7 at 10AM Thu (before the RH crash) is critical. Result: Day 1 midday check (12h into 72h plan): tracking perfectly. Indoor peaked at 71.2F, VPD max 1.04. Zero heat/VPD stress. Overcast lesson confirmed again — full cloud cover + 47F outdoor = zero stress. Midday RH dip to 39% outdoor only produced 1.04 kPa indoor at 71F. Grow lights compensating DLI (sensor 1.3 mol, est actual 4.5). Zone spread excellent at 1.1F (overcast = uniform). Cost on track at 4.53. Thu snap-back experiment still pending. Score: 8/10

Hypothesis

Conditions: Morning 6AM: 59.7F indoor, VPD 0.47, RH 73.4%. Outdoor 41F, overcast. 3rd consecutive benign day. Previous plan scored 8/10. Today: full overcast with brief midday dry window (RH 42%). Thu: THE snap-back day — 38F/90% dawn to 71F/17% by 3PM after 48h of comfort. Fri: cool and windy, dry (18-20% RH) but moderate temps. Testing: Thu VPD snap-back control test (continued from iris-20260331-0600): after 72h of comfort, pre-position Lesson #7 at 10AM Thu. Compare Thu 1PM avg VPD vs Mar-25 (1.85 kPa). Secondary: gas-first heating cost for 3 cold nights. Expected outcome: Wed: zero stress. Thu: VPD peak <2.5 kPa avg (south <3.5), heat stress <6h. Fri: VPD stress <3h. Three-night heating cost <1.50 total.

Setpoints

Wednesday April 01

Primary crop-band changes:

06:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

12:00high 82; low 58; vpd_h 1.8; hyst 0.3

Standard.

17:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

Tactical tunable changes:

06:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

12:00d_cool 3; engage 1.5; all 1.8; pulse 60; gap 45; wt 1.5

Standard.

17:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

Thursday April 02

Primary crop-band changes:

05:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

10:00high 82; low 60; vpd_h 1.6; hyst 0.3

Standard.

13:00high 82; low 60; vpd_h 1.4; hyst 0.3

Standard.

17:00high 82; low 60; vpd_h 1.6; hyst 0.3

Standard.

19:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

Tactical tunable changes:

05:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

10:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 30; wt 1.5

Standard.

13:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 30; wt 1.5

Standard.

17:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 30; wt 1.5

Standard.

19:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

Friday April 03

Primary crop-band changes:

05:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

10:00high 82; low 60; vpd_h 1.8; hyst 0.3

Standard.

13:00high 82; low 60; vpd_h 1.6; hyst 0.3

Standard.

17:00high 82; low 58; vpd_h 1.8; hyst 0.3

Standard.

20:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

Tactical tunable changes:

05:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

10:00d_cool 3; engage 1.4; all 1.8; pulse 60; gap 40; wt 1.5

Standard.

13:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 35; wt 1.5

Standard.

17:00d_cool 3; engage 1.5; all 1.8; pulse 60; gap 45; wt 1.5

Standard.

20:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

☀️ Midday Cycle (12:07 PM) — iris-20260401-1204

Status

validated

Outcome score

9/10

Changed parameters

vpd_high, mister_engage_kpa, mister_all_kpa, mister_pulse_gap_s, temp_low

Result: Wed (Day 1) end-of-day: Near-perfect tracking. Peak indoor 78.5F at 2PM, VPD max 1.50 briefly. Only 0.37h VPD stress (minor, from 2PM dry window). 0.03h heat stress. Rain arrived on schedule ~3PM, outdoor RH jumped to 70%+ and killed all VPD pressure. Evening settling at 66.5F/VPD 0.61. Cost USD 4.53. DLI sensor 2.1 (est actual 7.4 + grow lights = 43 mol total). Excellent.

Reflection

Validating previous cycle: iris-20260401-0600

Previous hypothesis: Wed stays benign — zero VPD/heat stress. Thu is the critical test: 48h of comfort followed by sudden 17% RH + 71F = outdoor VPD 2.14. Pre-positioning Lesson #7 at 10AM should reduce peak VPD vs reactive noon start. Fri moderate — dry but cool. Result: Wed (Day 1) end-of-day: Near-perfect tracking. Peak indoor 78.5F at 2PM, VPD max 1.50 briefly. Only 0.37h VPD stress (minor, from 2PM dry window). 0.03h heat stress. Rain arrived on schedule ~3PM, outdoor RH jumped to 70%+ and killed all VPD pressure. Evening settling at 66.5F/VPD 0.61. Cost USD 4.53. DLI sensor 2.1 (est actual 7.4 + grow lights = 43 mol total). Excellent. Score: 9/10

Hypothesis

Conditions: Midday 12PM: 71.2F indoor, VPD 1.04, RH 59.9%. Overcast, 47F outdoor. Morning plan tracking perfectly — zero stress. Rain arriving 4PM (outdoor RH jumping 39%→83%). Thu forecast refined: 39F/87% dawn → 71F/16% by 3PM. Fri: 38-52F, dry (18-25% RH), windy. Sat: cold dawn (36F), clearing to 59F/20%. Testing: Thu VPD snap-back experiment (continued). Same test: 10AM pre-position vs reactive noon. Updated forecast slightly drier (16% vs 17% peak RH) — confirms plan urgency. Secondary: compare Fri dry-but-cool response to Thu dry-and-hot. Same 19% RH but 20F cooler outdoor — how much does outdoor temp matter for indoor VPD when RH is identical? Expected outcome: Wed PM: zero stress. Thu: VPD peak <2.5 avg (south <3.5), heat stress <6h. Fri: VPD stress <2h (cool temps limit it). Sat noon: VPD <1.5 avg. Three-night heating (Wed+Thu+Fri) <2.00 total.

Setpoints

Wednesday April 01

Primary crop-band changes:

12:00high 82; low 58; vpd_h 1.8; hyst 0.3

Standard.

16:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

Tactical tunable changes:

12:00d_cool 3; engage 1.5; all 1.8; pulse 60; gap 45; wt 1.5

Standard.

16:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

Thursday April 02

Primary crop-band changes:

05:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

10:00high 82; low 60; vpd_h 1.6; hyst 0.3

Standard.

13:00high 82; low 60; vpd_h 1.4; hyst 0.3

Standard.

17:00high 82; low 60; vpd_h 1.6; hyst 0.3

Standard.

19:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

Tactical tunable changes:

05:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

10:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 30; wt 1.5

Standard.

13:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 30; wt 1.5

Standard.

17:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 30; wt 1.5

Standard.

19:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

Friday April 03

Primary crop-band changes:

05:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

10:00high 82; low 60; vpd_h 1.8; hyst 0.3

Standard.

13:00high 82; low 60; vpd_h 1.6; hyst 0.3

Standard.

17:00high 82; low 58; vpd_h 1.8; hyst 0.3

Standard.

20:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

Tactical tunable changes:

05:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

10:00d_cool 3; engage 1.4; all 1.8; pulse 60; gap 40; wt 1.5

Standard.

13:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 35; wt 1.5

Standard.

17:00d_cool 3; engage 1.5; all 1.8; pulse 60; gap 45; wt 1.5

Standard.

20:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

Saturday April 04

Primary crop-band changes:

06:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

10:00high 82; low 60; vpd_h 1.8; hyst 0.3

Standard.

13:00high 82; low 60; vpd_h 1.6; hyst 0.3

Standard.

Tactical tunable changes:

06:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

10:00d_cool 3; engage 1.4; all 1.8; pulse 60; gap 40; wt 1.5

Standard.

13:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 35; wt 1.5

Standard.

🌆 Evening Cycle (6:08 PM) — iris-20260401-1800

Status

validated

Outcome score

8/10

Changed parameters

vpd_high, mister_engage_kpa, mister_pulse_gap_s, temp_low

Result: Overnight Apr 1-2 tracked perfectly. Indoor held 59-60F with VPD 0.38-0.48, zero VPD/heat stress overnight. Heaters cycled briefly (32 min each heat1+heat2) to maintain floor at outdoor 38F. Cost overnight portion ~USD 1.07. All plan waypoints dispatched correctly — 19:00 evening restore worked (vpd_high→2.0, engage→1.6). Wed full-day performance excellent: 0.37h VPD stress, 0.03h heat stress, USD 4.53 total. Thu snap-back experiment begins this morning — overnight pre-conditions met (plants had 72h of VPD<1.0).

Reflection

Validating previous cycle: iris-20260401-1204

Previous hypothesis: Wed afternoon rain kills all VPD concern. Thu snap-back experiment continues — 72h of comfort followed by 16% RH + 71F. Pre-positioned Lesson #7 at 10AM should reduce VPD peak. Fri moderate — dry but cool limits indoor VPD to 1.2-1.6. Sat is a mini-stress day (clear + dry) but less extreme than Thu. Result: Overnight Apr 1-2 tracked perfectly. Indoor held 59-60F with VPD 0.38-0.48, zero VPD/heat stress overnight. Heaters cycled briefly (32 min each heat1+heat2) to maintain floor at outdoor 38F. Cost overnight portion ~USD 1.07. All plan waypoints dispatched correctly — 19:00 evening restore worked (vpd_high→2.0, engage→1.6). Wed full-day performance excellent: 0.37h VPD stress, 0.03h heat stress, USD 4.53 total. Thu snap-back experiment begins this morning — overnight pre-conditions met (plants had 72h of VPD<1.0). Score: 8/10

New finding: Overnight heating at 38F outdoor with temp_low=58 costs ~USD 1/night with dual staging. Slab retention keeps indoor above 57F even before heaters engage. Three consecutive overcast days (Mon-Wed) produced near-zero stress with minimal equipment cycling. → Added to Lessons Learned

Hypothesis

Conditions: Evening 6PM: 66.5F indoor, VPD 0.61, RH 72.6%. Outdoor 48F, rain clearing. Wed end-of-day: 0.37h VPD stress, near-zero heat stress. Perfect day. Previous plan scored 9/10. Tonight cold (39F Thu dawn). Thu: stress day 39F/87%→71F/16%. Fri: cool+windy+dry. Sat: coldest dawn 36F, clearing. Testing: Thu VPD snap-back experiment (final iteration). Same protocol: Lesson #7 at 10AM. Measuring 1PM VPD avg vs Mar-25 baseline (1.85 kPa). After 72h of VPD<1.0, plants less acclimated — will pre-positioning compensate? Secondary: Fri vs Thu temp-controlled comparison (same 19% RH, 20F cooler). Expected outcome: Tonight: zero stress. Thu: VPD peak <2.5 avg, heat stress <6h. Fri: VPD stress <2h. Sat: VPD stress <4h. Four-night heating <2.50 total.

Setpoints

Wednesday April 01

Primary crop-band changes:

19:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

Tactical tunable changes:

19:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

Thursday April 02

Primary crop-band changes:

05:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

10:00high 82; low 60; vpd_h 1.6; hyst 0.3

Standard.

13:00high 82; low 60; vpd_h 1.4; hyst 0.3

Standard.

17:00high 82; low 60; vpd_h 1.6; hyst 0.3

Standard.

19:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

Tactical tunable changes:

05:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

10:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 30; wt 1.5

Standard.

13:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 30; wt 1.5

Standard.

17:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 30; wt 1.5

Standard.

19:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

Friday April 03

Primary crop-band changes:

05:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

10:00high 82; low 60; vpd_h 1.8; hyst 0.3

Standard.

13:00high 82; low 60; vpd_h 1.6; hyst 0.3

Standard.

17:00high 82; low 58; vpd_h 1.8; hyst 0.3

Standard.

20:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

Tactical tunable changes:

05:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

10:00d_cool 3; engage 1.4; all 1.8; pulse 60; gap 40; wt 1.5

Standard.

13:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 35; wt 1.5

Standard.

17:00d_cool 3; engage 1.5; all 1.8; pulse 60; gap 45; wt 1.5

Standard.

20:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

Saturday April 04

Primary crop-band changes:

06:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

10:00high 82; low 60; vpd_h 1.8; hyst 0.3

Standard.

13:00high 82; low 60; vpd_h 1.6; hyst 0.3

Standard.

17:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

Tactical tunable changes:

06:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

10:00d_cool 3; engage 1.4; all 1.8; pulse 60; gap 40; wt 1.5

Standard.

13:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 35; wt 1.5

Standard.

17:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

End-of-Day Summary

Climate

Temperature

57.8–82.1°F; avg 63.9°F

VPD

0.34–2.16 kPa; avg 0.64 kPa

Relative humidity

41.8–80.9%

Stress Hours

  • Heat stress (>85°F): 0.5h
  • VPD stress (>2.0 kPa): 2.1h
  • Cold stress (<55°F): 19.5h

Economics

Electric

USD 0.03

Gas

USD 0.88

Water

USD 0.030

Total

USD 0.94

Equipment Runtimes

Fan 10 min

Primary exhaust runtime.

Fan 23 min

Secondary exhaust runtime.

Vent3 min

Intake vent runtime.

Fog1 min

Fogger runtime.

Heat 1 electric85 min

Electric heater runtime.

Heat 2 gas85 min

Gas heater runtime.

Grow lights0 min

Supplemental lighting runtime.

Mister south0.00h

South mister runtime.

Mister west0.01h

West mister runtime.

Mister center0.00h

Center mister runtime.

Water

  • Total: 2 gal
  • Mister: 1 gal

Hourly Pattern

12:0074.1°F; VPD 1.06 kPa

RH 63.3%.

13:0074.1°F; VPD 1.08 kPa

RH 62.4%.

14:0079.1°F; VPD 1.40 kPa

RH 59.3%.

15:0078.9°F; VPD 1.20 kPa

RH 64.7%.

16:0073.4°F; VPD 0.84 kPa

RH 70.1%.

17:0069.0°F; VPD 0.64 kPa

RH 73.6%.

18:0066.5°F; VPD 0.56 kPa

RH 75.0%.

19:0063.6°F; VPD 0.46 kPa

RH 77.1%.

20:0061.2°F; VPD 0.41 kPa

RH 77.8%.

21:0059.5°F; VPD 0.38 kPa

RH 78.2%.

22:0059.2°F; VPD 0.38 kPa

RH 78.0%.

23:0059.3°F; VPD 0.40 kPa

RH 76.8%.

00:0059.4°F; VPD 0.40 kPa

RH 76.8%.

01:0059.7°F; VPD 0.40 kPa

RH 77.0%.

02:0059.5°F; VPD 0.40 kPa

RH 76.9%.

03:0059.4°F; VPD 0.41 kPa

RH 76.2%.

04:0059.6°F; VPD 0.43 kPa

RH 75.5%.

05:0059.8°F; VPD 0.47 kPa

RH 73.4%.

06:0059.6°F; VPD 0.47 kPa

RH 72.9%.

07:0059.8°F; VPD 0.50 kPa

RH 71.4%.

08:0060.1°F; VPD 0.53 kPa

RH 70.3%.

09:0062.4°F; VPD 0.62 kPa

RH 68.1%.

10:0067.4°F; VPD 0.81 kPa

RH 64.9%.

11:0071.1°F; VPD 1.04 kPa

RH 60.1%.

7-Day Stress Context

2026-03-26Heat 14.5h; VPD high 14.2h

Cold stress 1.6h.

2026-03-27Heat 0.0h; VPD high 2.4h

Cold stress 20.7h.

2026-03-28Heat 11.0h; VPD high 12.2h

Cold stress 11.0h.

2026-03-29Heat 15.0h; VPD high 15.2h

Cold stress 5.1h.

2026-03-30Heat 14.5h; VPD high 10.5h

Cold stress 3.9h.

2026-03-31Heat 3.0h; VPD high 1.7h

Cold stress 12.1h.

2026-04-01Heat 0.5h; VPD high 2.1h

Cold stress 19.5h.