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Lunar calendar for growing cannabis 2026 — favorable days for sowing and care

Monthly view for moon phases — May 2026

Time zone: Europe/Kyiv (Europe/Kyiv)

Lunar calendar for cultivating cannabis in 2026 — a clear guide for sowing, transplanting, and care by Moon phases.

Education-first tips without admin settings: transparent sources, agronomy principles, and Kyiv time for consistency.

Showing days for May — toggle filters to match your tasks.

May 2026: quick monthly plan

7 days for sowing 10 days for transplanting 31 days for care Discounts on kits are available

Detailed day plan

19 May, Tue

Moon in Leo — keep canopy shape without stress.

Waning Gibbous 🟡 neutral

Illumination: 66.8%

Cleanup: sanitary pruning and gentle nutrition.

Recommended actions

  • Remove old leaves and tidy the grow area.
  • Plan root feedings with lower nitrogen.
Intensive care days
🌱 Pick products Back to month
1 May

Fri · Waxing Crescent

Moon in Taurus — focus on roots and stability.

Illumination: 7.1%

🟢 good day
Only favorable sowing days Intensive care days

Recommended actions

  • Start seedlings; water lightly to avoid overwatering.
  • Add mild root-supporting nutrients.
2 May

Sat · Waxing Crescent

Moon in Gemini — light ventilation and humidity control.

Illumination: 13.5%

🟢 good day
Only favorable sowing days Intensive care days

Recommended actions

  • Start seedlings; water lightly to avoid overwatering.
  • Add mild root-supporting nutrients.
3 May

Sun · Waxing Crescent

Moon in Leo — keep canopy shape without stress.

Illumination: 21.6%

🟢 good day
Only favorable sowing days Intensive care days

Recommended actions

  • Start seedlings; water lightly to avoid overwatering.
  • Add mild root-supporting nutrients.
4 May

Mon · Waxing Crescent

Moon in Virgo — precise watering and gentle feeds.

Illumination: 30.9%

🟢 good day
Only favorable sowing days Intensive care days

Recommended actions

  • Start seedlings; water lightly to avoid overwatering.
  • Add mild root-supporting nutrients.
5 May

Tue · First Quarter

Moon in Libra — balance light and moisture.

Illumination: 41.1%

🟢 good day
Transplant-focused days Intensive care days

Recommended actions

  • Transplant rooted seedlings into larger pots.
  • Adjust lighting height for balanced growth.
6 May

Wed · First Quarter

Moon in Scorpio — mind tool hygiene and substrate sterility.

Illumination: 51.7%

🟢 good day
Transplant-focused days Intensive care days

Recommended actions

  • Transplant rooted seedlings into larger pots.
  • Adjust lighting height for balanced growth.
7 May

Thu · Waxing Gibbous

Moon in Capricorn — work with soil structure and support.

Illumination: 62.2%

🟢 good day
Intensive care days Transplant-focused days

Recommended actions

  • Increase feeding schedules and shape the canopy.
  • Track humidity and airflow to prevent stress.
8 May

Fri · Waxing Gibbous

Moon in Pisces — cautious watering, avoid overflows.

Illumination: 72.2%

🟢 good day
Intensive care days Transplant-focused days

Recommended actions

  • Increase feeding schedules and shape the canopy.
  • Track humidity and airflow to prevent stress.
9 May

Sat · Waxing Gibbous

Moon in Taurus — focus on roots and stability.

Illumination: 81.1%

🟢 good day
Intensive care days Transplant-focused days

Recommended actions

  • Increase feeding schedules and shape the canopy.
  • Track humidity and airflow to prevent stress.
10 May

Sun · Waxing Gibbous

Moon in Gemini — light ventilation and humidity control.

Illumination: 88.7%

🟢 good day
Intensive care days Transplant-focused days

Recommended actions

  • Increase feeding schedules and shape the canopy.
  • Track humidity and airflow to prevent stress.
11 May

Mon · Waxing Gibbous

Moon in Leo — keep canopy shape without stress.

Illumination: 94.5%

🟢 good day
Intensive care days Transplant-focused days

Recommended actions

  • Increase feeding schedules and shape the canopy.
  • Track humidity and airflow to prevent stress.
12 May

Tue · Waxing Gibbous

Moon in Virgo — precise watering and gentle feeds.

Illumination: 98.3%

🟢 good day
Intensive care days Transplant-focused days

Recommended actions

  • Increase feeding schedules and shape the canopy.
  • Track humidity and airflow to prevent stress.
13 May

Wed · Full Moon

Moon in Libra — balance light and moisture.

Illumination: 99.9%

🔴 rest day
Intensive care days

Recommended actions

  • Avoid heavy interventions; observe overall health.
  • Inspect leaves and manage pests carefully.
14 May

Thu · Full Moon

Moon in Scorpio — mind tool hygiene and substrate sterility.

Illumination: 99.3%

🔴 rest day
Intensive care days

Recommended actions

  • Avoid heavy interventions; observe overall health.
  • Inspect leaves and manage pests carefully.
15 May

Fri · Waning Gibbous

Moon in Capricorn — work with soil structure and support.

Illumination: 96.5%

🟡 neutral
Intensive care days

Recommended actions

  • Remove old leaves and tidy the grow area.
  • Plan root feedings with lower nitrogen.
16 May

Sat · Waning Gibbous

Moon in Pisces — cautious watering, avoid overflows.

Illumination: 91.5%

🟡 neutral
Intensive care days

Recommended actions

  • Remove old leaves and tidy the grow area.
  • Plan root feedings with lower nitrogen.
17 May

Sun · Waning Gibbous

Moon in Taurus — focus on roots and stability.

Illumination: 84.7%

🟡 neutral
Intensive care days

Recommended actions

  • Remove old leaves and tidy the grow area.
  • Plan root feedings with lower nitrogen.
18 May

Mon · Waning Gibbous

Moon in Gemini — light ventilation and humidity control.

Illumination: 76.3%

🟡 neutral
Intensive care days

Recommended actions

  • Remove old leaves and tidy the grow area.
  • Plan root feedings with lower nitrogen.
19 May

Tue · Waning Gibbous

Moon in Leo — keep canopy shape without stress.

Detailed day plan

Illumination: 66.8%

🟡 neutral
Intensive care days

Recommended actions

  • Remove old leaves and tidy the grow area.
  • Plan root feedings with lower nitrogen.
20 May

Wed · Last Quarter

Moon in Virgo — precise watering and gentle feeds.

Illumination: 56.4%

🟢 good day
Transplant-focused days Intensive care days

Recommended actions

  • Harvest when timing is right.
  • Clean tools and prepare the next substrate batch.
21 May

Thu · Last Quarter

Moon in Libra — balance light and moisture.

Illumination: 45.8%

🟢 good day
Transplant-focused days Intensive care days

Recommended actions

  • Harvest when timing is right.
  • Clean tools and prepare the next substrate batch.
22 May

Fri · Waning Crescent

Moon in Scorpio — mind tool hygiene and substrate sterility.

Illumination: 35.4%

🟡 neutral
Intensive care days

Recommended actions

  • Let plants rest with minimal handling.
  • Check substrate moisture and correct watering.
23 May

Sat · Waning Crescent

Moon in Capricorn — work with soil structure and support.

Illumination: 25.6%

🟡 neutral
Intensive care days

Recommended actions

  • Let plants rest with minimal handling.
  • Check substrate moisture and correct watering.
24 May

Sun · Waning Crescent

Moon in Pisces — cautious watering, avoid overflows.

Illumination: 17%

🟡 neutral
Intensive care days

Recommended actions

  • Let plants rest with minimal handling.
  • Check substrate moisture and correct watering.
25 May

Mon · Waning Crescent

Moon in Taurus — focus on roots and stability.

Illumination: 9.8%

🟡 neutral
Intensive care days

Recommended actions

  • Let plants rest with minimal handling.
  • Check substrate moisture and correct watering.
26 May

Tue · Waning Crescent

Moon in Gemini — light ventilation and humidity control.

Illumination: 4.4%

🟡 neutral
Intensive care days

Recommended actions

  • Let plants rest with minimal handling.
  • Check substrate moisture and correct watering.
27 May

Wed · Waning Crescent

Moon in Leo — keep canopy shape without stress.

Illumination: 1.1%

🟡 neutral
Intensive care days

Recommended actions

  • Let plants rest with minimal handling.
  • Check substrate moisture and correct watering.
28 May

Thu · New Moon

Moon in Virgo — precise watering and gentle feeds.

Illumination: 0%

🔴 rest day
Intensive care days

Recommended actions

  • Review seed stock and plan sowing for the month.
  • Write down harvest targets and prepare substrates.
29 May

Fri · Waxing Crescent

Moon in Libra — balance light and moisture.

Illumination: 1.2%

🟢 good day
Only favorable sowing days Intensive care days

Recommended actions

  • Start seedlings; water lightly to avoid overwatering.
  • Add mild root-supporting nutrients.
30 May

Sat · Waxing Crescent

Moon in Scorpio — mind tool hygiene and substrate sterility.

Illumination: 4.5%

🟢 good day
Only favorable sowing days Intensive care days

Recommended actions

  • Start seedlings; water lightly to avoid overwatering.
  • Add mild root-supporting nutrients.
31 May

Sun · Waxing Crescent

Moon in Capricorn — work with soil structure and support.

Illumination: 9.9%

🟢 good day
Only favorable sowing days Intensive care days

Recommended actions

  • Start seedlings; water lightly to avoid overwatering.
  • Add mild root-supporting nutrients.

Data sources and principles

  • Moon phases are calculated from the synodic cycle (29.53058867 days) aligned with public ephemerides.
  • Time zone locked to Europe/Kyiv for consistent dates.
  • Recommendations follow common agronomy practices: moisture-light balance and root load management.

Educational content only, intended for regions where cultivation is lawful.

Author and expertise

Orest Lunnik

Agronomist with 12 years on photoperiod crops

Focused on organic growing, lunar cycle planning, and adapting calendars for indoor environments.

Article on Moon phases for gardeners Guide to seasonal care for cultivated plants

Answers & questions

Pick a month and a filter: sowing, transplanting, or care. Open a day to see its Moon phase, illumination, and short actions.

No, it is a guide. It helps plan workload and avoid stress, but consider environment, genetics, and agronomy.

Calculated from the synodic month (~29.53 days) using public ephemerides and Europe/Kyiv time.

Sap movement and disk illumination shift across the month: waxing phases support vegetative push, waning phases favor recovery and cleanup.