December is marked as a quiet month in the gardening calendar. The situation remains the same in 2021. The lunar calendar predicts no risks for seedlings. The recommended nutrient levels, moisture, and soil pH are monitored. No major agricultural interventions are planned for December 2021. Green spaces are excessively depleted. The gardener's lunar calendar for December 2021 emphasizes preventative and maintenance care.
Moon position in December
Astrologers and botanists compile a list of favorable and unfavorable days based on an analysis of two factors. The first is the active phase of the celestial body. Full and new moons are days when gardening is not recommended. Any fertilizers and water applied are used to form the unproductive portion of the seedlings. A large harvest is not expected. There is a high risk of losing some of the plantings due to weakening immunity. Pricking out and planting are prohibited.
The second factor considered is related to the moon's position in a specific zodiac sign or "house." "Air" symbols accelerate fruit formation, while "water" symbols strengthen the root system. Favorable days according to the lunar calendar in December 2021 are chosen during the waxing moon. The celestial body directs its energy to support the upper parts of green spaces.
| Phase | What are they doing? | Note |
|
New Moon – Nutrients are retained near the root |
Favorable time for planting |
Compared to midwinter |
|
Growing – stimulates the active rise of juices from the root along the stem |
The luminary supports flowering seedlings |
Peak of green space development |
|
Full moon – maximum rate of moisture absorption from the environment |
Time to add nutrients and water |
Seedlings actively absorb nutrients from the soil |
|
Waning – the movement of juices gradually decreases, nutrients go to the root crops |
They carry out agricultural activities, such as transplanting and picking |
Minimal sensitivity to external influences |
The described 4 phases of the celestial body conditionally correspond to the 4 seasons of the year.
The influence of the zodiac signs on lunar activity
Each group of zodiac signs influences seedlings in a specific way. For example, those in the "earth" houses, which include Capricorn, Taurus, and Virgo, enhance root activity. Repotting, fertilizing, and other cultivation practices near the bottom of the seedlings are successful. The time of the "water" signs, which includes Pisces, Cancer, and Scorpio, has a positive effect on stem formation.
Flowers respond positively to agricultural practices when work begins on days when the sun is in an air sign. This includes Gemini, Libra, and Aquarius. For fruit-bearing crops, choose fire signs. Aries, Sagittarius, and Leo accelerate the formation of juicy fruits.
Action plan for the waxing and waning moon
Seedling management will be coordinated with the recommendations of astronomers and botanists. The first step is to review the list of favorable and unfavorable days for December 2021.
| Auspicious dates | Neutral dates | Unfavorable dates |
| 1-2, 6-7 | 8-9 | 3 |
| 10-11 | 12-13 | 4 |
| 14-16 | 17-18 | 5 |
| 27-30 | 20-26, 31 | 19 |
Neutral dates are periods of time when the moon in December has no positive or negative effect on seedlings. The second step is to coordinate the list of agricultural procedures with the moon's active phase. There are waxing and waning phases. Each affects the upper and lower parts of the seedlings, respectively.
The following types of work are carried out in the garden:
- removing snow from branches;
- cleaning the greenhouse roof;
- crown binding;
- cuttings;
- pruning.
The above-mentioned agricultural procedures are carried out with due regard for the health of the greenery. If the crop is weakened, another date is chosen. The waning moon phase in December falls on December 1st-3rd and December 20th-31st. This is the time for sowing prepared seeds, digging, fertilizing, and transplanting. Rodents and disease control are carried out during the waning moon.
What to do on neutral days
All indoor ornamental plants, not to mention their medicinal counterparts, are sensitive to all treatments. The risk of partial harvest loss can be reduced as follows. Agricultural treatments are scheduled for so-called neutral days. There is no significant positive or negative lunar activity.
A similar time period is chosen for storing part of the harvested crop for long-term storage. Seed purchases are planned for neutral days. Even a beginner will find it easier if there is no significant solar activity. Pay attention to the seed specifications listed on the packaging.
Common mistakes when choosing dates
Even professionals encounter problems when dividing gardening operations between the phases of the celestial body's activity. On the one hand, the waxing moon is the time for working on the above-ground zone, while the waning moon is the time for working on the underground part. On the other hand, several specific operations are distinguished:
- sorting of seed material;
- preventive treatment of seedlings;
- elimination of pests and diseases;
- planting in protected ground.
Astronomers and botanists agree. Surgeries that cannot be definitively attributed to a particular lunar phase are postponed to neutral dates.
Working with indoor flowers
Ornamental indoor and medicinal plants are a separate category. They are placed indoors in stable weather conditions. Lunar activity is not the only factor dictating the procedure. The timing of indoor plantings is determined by the following recommendations:
- Perennial plantings feel comfortable during the waxing moon, while annuals prefer the waning moon;
- preventive and therapeutic treatment is carried out only on days of increasing activity;
- Transplantation and pruning are carried out only on “neutral” dates.
Astronomers call December a rather challenging month for houseplants. They enter a period of "hibernation," making them difficult to handle. Botanists advise minimizing any indoor manipulation if it can be temporarily avoided.
December is a quiet month. The lunar phases don't promise any upheavals, but that's no reason not to coordinate your actions with the lunar calendar. The timing of sowing seeds indoors, cultivating crops, harvesting, and so on is determined by the lunar phases. The amount of gardening work, not to mention the selection of dates, is determined by the physical and chemical characteristics of the soil, the readiness of the seedlings, and the results of a visual inspection of the plantings.

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