🌱 Verdify

5 min read

April 03, 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.

☀️ Midday Cycle (11:09 AM) — iris-20260403-1100

Status

validated

Outcome score

7/10

Changed parameters

vpd_high, mister_engage_kpa, mister_all_kpa, mister_pulse_gap_s, temp_low

Result: Cold-dry hypothesis validated. Friday (49F outdoor, 22% RH): 0h heat stress, 2h VPD high (afternoon only after clouds cleared). Saturday morning (37F overnight, 56-57F indoor until 10AM): VPD stayed <1.05 until 10AM despite dry air — zero wasted misting. By noon south hit 87F/VPD 2.32 as outdoor crossed 54F. 2.73h cold stress overnight Fri (temp_low=55 with 37F outdoor). Morning delayed-deployment approach confirmed: no misting needed below 55F outdoor despite 15-27% RH.

Reflection

Validating previous cycle: iris-20260402-1802

Previous hypothesis: Evening restore will drop VPD rapidly (already 1.19-1.26). Overnight: slab retains heat from massive misting (204 gal), indoor will hold above 60F without heaters until outdoor drops below 45F. Fri: short stress window 10AM-2PM (clear, 16-21% RH, but only 44-53F outdoor = indoor VPD moderate ~1.0-1.2). Clouds at 2PM kill all stress. Sat: the real comparison to Thu — same pre-positioning but plants now acclimated from Thu stress. Sat outdoor VPD 1.4-1.74 vs Thu 2.0-2.27. Result: Cold-dry hypothesis validated. Friday (49F outdoor, 22% RH): 0h heat stress, 2h VPD high (afternoon only after clouds cleared). Saturday morning (37F overnight, 56-57F indoor until 10AM): VPD stayed <1.05 until 10AM despite dry air — zero wasted misting. By noon south hit 87F/VPD 2.32 as outdoor crossed 54F. 2.73h cold stress overnight Fri (temp_low=55 with 37F outdoor). Morning delayed-deployment approach confirmed: no misting needed below 55F outdoor despite 15-27% RH. Score: 7/10

New finding: Temperature-triggered misting deployment works. Standard settings until outdoor >55F saves water in cold mornings. Cold stress from 37F overnight acceptable with temp_low=55 but raising to 58 would eliminate it without meaningful cost increase. → Added to Lessons Learned

Hypothesis

Conditions: Morning 11AM: 68F avg, VPD 1.23, south 81.5F/VPD 2.22. Outdoor 49F, 22% RH, clear. Clouds arrive 1PM (100%). Tonight cold (37F). Sat: frost dawn (36F), then extreme dry (12% RH, outdoor VPD 2.02 at peak). Sun: similar but less extreme (14% RH, 66F). Testing: Sat temperature-triggered misting deployment. Standard settings while outdoor <55F (dawn-9AM), moderate 9AM-noon, aggressive noon-5PM (outdoor >60F + 12% RH). Test if delayed deployment reduces water waste in morning while still capturing afternoon stress. Expected outcome: Sat VPD stress 3-5h (noon-5PM only). Morning VPD stress <0.5h despite 18-27% RH because outdoor <55F. Water <150 gal. Sun VPD stress <4h.

Setpoints

Friday April 03

Primary crop-band changes:

11:00high 82; low 58; vpd_h 1.8; hyst 0.3

Standard.

14:00high 82; low 58; vpd_h 2; hyst 0.3

Standard.

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

Standard.

Tactical tunable changes:

11:00d_cool 3; engage 1.4; all 1.8; pulse 60; gap 40; wt 1.5

Standard.

14:00d_cool 3; engage 1.6; all 2; pulse 60; gap 45; wt 1.5

Standard.

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

Standard.

Saturday April 04

Primary crop-band changes:

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

Standard.

09:00high 82; low 60; vpd_h 1.8; hyst 0.3

Standard.

12:00high 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.

09:00d_cool 3; engage 1.4; all 1.8; pulse 60; gap 40; wt 1.5

Standard.

12:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 30; wt 1.5

Standard.

17:00d_cool 3; engage 1.4; all 1.8; pulse 60; gap 40; wt 1.5

Standard.

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

Standard.

Sunday April 05

Primary crop-band changes:

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

Standard.

09:00high 82; low 60; vpd_h 1.8; hyst 0.3

Standard.

12:00high 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.

09:00d_cool 3; engage 1.4; all 1.8; pulse 60; gap 40; wt 1.5

Standard.

12:00d_cool 3; engage 1.3; all 1.6; pulse 60; gap 35; wt 1.5

Standard.

17:00d_cool 3; engage 1.4; all 1.8; pulse 60; gap 40; wt 1.5

Standard.

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

Standard.

End-of-Day Summary

Climate

Temperature

53.8–83.3°F; avg 64.9°F

VPD

0.33–2.40 kPa; avg 0.99 kPa

Relative humidity

33.6–82.2%

Stress Hours

  • Heat stress (>85°F): 6.2h
  • VPD stress (>2.0 kPa): 13.2h
  • Cold stress (<55°F): 16.5h

Economics

Electric

USD 0.20

Gas

USD 1.82

Water

USD 0.000

Total

USD 2.02

Equipment Runtimes

Fan 1240 min

Primary exhaust runtime.

Fan 2277 min

Secondary exhaust runtime.

Vent337 min

Intake vent runtime.

Fog46 min

Fogger runtime.

Heat 1 electric176 min

Electric heater runtime.

Heat 2 gas176 min

Gas heater runtime.

Grow lights2366 min

Supplemental lighting runtime.

Mister south0.17h

South mister runtime.

Mister west0.11h

West mister runtime.

Mister center0.37h

Center mister runtime.

Water

  • Total: 96 gal
  • Mister: 36 gal

Hourly Pattern

12:0081.4°F; VPD 1.80 kPa

RH 51.2%.

13:0082.0°F; VPD 1.68 kPa

RH 55.3%.

14:0082.8°F; VPD 1.72 kPa

RH 55.4%.

15:0082.8°F; VPD 1.72 kPa

RH 55.3%.

16:0080.8°F; VPD 1.54 kPa

RH 56.9%.

17:0080.7°F; VPD 1.39 kPa

RH 61.3%.

18:0078.4°F; VPD 1.03 kPa

RH 69.0%.

19:0072.4°F; VPD 0.67 kPa

RH 75.6%.

20:0068.7°F; VPD 0.52 kPa

RH 78.2%.

21:0066.1°F; VPD 0.49 kPa

RH 77.8%.

22:0062.7°F; VPD 0.43 kPa

RH 77.8%.

23:0060.0°F; VPD 0.37 kPa

RH 78.9%.

00:0059.4°F; VPD 0.38 kPa

RH 78.4%.

01:0059.3°F; VPD 0.37 kPa

RH 78.4%.

02:0059.2°F; VPD 0.46 kPa

RH 73.3%.

03:0059.8°F; VPD 0.54 kPa

RH 69.3%.

04:0059.4°F; VPD 0.58 kPa

RH 66.6%.

05:0059.3°F; VPD 0.60 kPa

RH 65.0%.

06:0059.5°F; VPD 0.70 kPa

RH 60.1%.

07:0057.4°F; VPD 0.58 kPa

RH 64.1%.

08:0056.6°F; VPD 0.65 kPa

RH 58.3%.

09:0056.9°F; VPD 0.71 kPa

RH 55.5%.

10:0067.1°F; VPD 1.19 kPa

RH 48.7%.

11:0077.6°F; VPD 1.69 kPa

RH 49.9%.

7-Day Stress Context

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.

2026-04-02Heat 10.8h; VPD high 8.9h

Cold stress 11.7h.

2026-04-03Heat 6.2h; VPD high 13.2h

Cold stress 16.5h.