How do you build a garden watering schedule using rainfall data? Check your Stratus Precision Rain Gauge after every rain event, subtract the reading from your weekly water target for each crop, and deliver the deficit through the Tomato Crater moat or drip system. Adjust weekly based on temperature, growth stage, and actual rainfall — never water on a fixed schedule that ignores what nature already provided. Made in USA.
Tom's Quick Answer: Monday morning: check Stratus, note the weekly rainfall so far. Water to make up the deficit. Check again mid-week if it rains. Adjust. That's the whole system. It takes 5 minutes a week and produces better results than any fixed schedule.
Tom's Real-World Advice
Fixed watering schedules are the enemy of a healthy garden. Monday-Wednesday-Friday regardless of rainfall is how you overwater in a wet week and underwater in a dry one. The plants don't know what day it is. They know how much moisture is in the root zone.
A rainfall-based schedule sounds complicated but it's actually simpler than a fixed schedule once you get the habit. Check the gauge, do the math, water accordingly. The Stratus gauge makes the math easy — the reading is the reading. No interpretation required.
Tom's Weekly Watering Routine
Monday Morning — Weekly Reset
- Check Stratus gauge — record any weekend rainfall
- Set weekly water target based on growth stage (see table below)
- Calculate deficit: target minus rainfall to date
- Water Tomato Crater moats to deliver the week's first supplemental dose
- Add MitoGrow to watering can if it's a MitoGrow week (every 3rd–4th watering)
Wednesday — Mid-Week Check
- Check Stratus if it rained since Monday
- Recalculate deficit with updated rainfall total
- Water if deficit requires it — skip if rainfall has covered the week's target
- Check plants for wilting, disease, or pest pressure
Friday — End of Week Assessment
- Final Stratus check for the week
- Water if needed to reach weekly target
- Record weekly total in garden notebook
- Note any plant health observations for the week
Weekly Water Targets by Crop and Stage
| Crop | Early Season | Flowering/Fruit Set | Ripening |
|---|---|---|---|
| Tomatoes | 1–1.5 inches | 1.5–2 inches | 1 inch |
| Peppers | 1–1.5 inches | 1.5 inches | 1 inch |
| Cucumbers | 1 inch | 1–1.5 inches | 1 inch |
| Squash/Zucchini | 1–1.5 inches | 1.5–2 inches | 1 inch |
| Melons | 1–2 inches | 2 inches | 0.5–1 inch (reduce at ripening) |
| Strawberries | 1–1.5 inches | 1–1.5 inches | 1 inch |
| Eggplant | 1–1.5 inches | 1.5 inches | 1 inch |
How to Adjust for Summer Heat
During heat waves (sustained temps above 90°F), increase all targets by 0.5 inches per week. Evaporation from the soil surface increases significantly in extreme heat, and plants transpire more water through their leaves. The Stratus gauge tells you what fell — but it doesn't account for increased evaporation. Add the heat adjustment manually.
Tom's heat wave rule: if the forecast shows 3+ days above 90°F, add 0.5 inches to the weekly target for all crops and water every morning instead of every other day.
Sample Week: How Tom Uses Stratus Data
Scenario: Mid-July, tomatoes in fruit set stage (target: 1.5–2 inches/week), heat wave forecast.
- Monday: Stratus reads 0.0 inches since last Friday. Adjusted target with heat: 2 inches. Water 0.5 inches equivalent into each Tomato Crater moat.
- Tuesday: No rain. Water 0.5 inches into moats.
- Wednesday: Thunderstorm overnight. Stratus reads 0.85 inches. Running total: 1.85 inches. Deficit: 0.15 inches. Skip watering — close enough, check Thursday.
- Thursday: No rain. Water 0.25 inches into moats. Weekly total: 2.1 inches. Target met.
- Friday: Stratus reads 0.0 additional. Week complete at 2.1 inches. Record and reset for next week.
FAQs
How do I build a garden watering schedule?
Base it on rainfall data, not fixed days. Check your Stratus gauge after every rain event, subtract the reading from your weekly water target, and deliver the deficit through Tomato Crater or drip irrigation. Adjust weekly based on temperature and growth stage.
How much should I water my garden in summer?
Most vegetables need 1–2 inches per week in summer, increasing during heat waves. Use a Stratus gauge to track rainfall and supplement only what nature doesn't provide. Overwatering is as harmful as underwatering.
Should I water my garden on a fixed schedule?
No. Fixed schedules ignore rainfall and lead to overwatering in wet weeks and underwatering in dry ones. A rainfall-based schedule using Stratus data produces better results with less water.
How do I adjust watering during a heat wave?
Add 0.5 inches to your weekly water target during sustained heat above 90°F. Water every morning instead of every other day. Deliver through Tomato Crater moats only — never spray foliage in heat.
What is the best time of day to water a vegetable garden?
Early morning, before 10am. Morning watering gives roots all day to absorb moisture before peak heat, and any incidental foliage moisture dries quickly in morning sun. Never water in the afternoon heat or evening — afternoon water evaporates before reaching roots, and evening moisture on foliage promotes fungal disease overnight.
More Stratus Resources: Stratus Rain Gauge Hub | Shop Stratus Rain Gauge | Shop Tomato Crater | Learn From Tom
