Reset & begin

Use the start of the cycle to review plans, prepare supplies and, where conditions allow, begin another round of sowing.

Build & grow

This stage is traditionally associated with tending seedlings and crops grown mainly for their above-ground growth.

Observe & harvest

Make this a visible checkpoint for crop health, ripeness and the jobs that have been postponed since the cycle began.

Tidy & reduce

Tradition connects this period with root crops, pruning, soil work, cleaning and preparation for the next cycle.

January

Map the coming season and inspect seeds, supplies and greenhouse systems

January is not equally dormant everywhere in Canada, but it is a useful planning month for most gardeners. Inventory seed, select varieties suited to your available space and sketch how beds and greenhouse benches will be used. Sow very early crops only when you can provide the light and warmth needed to keep seedlings compact and healthy.

Turn one lunar checkpoint into a greenhouse inspection: wash glazing as conditions permit, test vents, examine doors and seals, and clear old plant material. In colder regions, an unheated structure may offer shelter without remaining frost-free. Whatever the climate, provide sensible air exchange and avoid leaving overwintering plants continuously wet.

February

Begin selectively as daylight returns

February brings noticeably more daylight, but the amount of usable light still depends on region and site. Gardeners with a bright, warm propagation area can consider peppers, chillies and other long-season plants. Protected lettuce, spinach or hardy greens may also be practical, but one sunny afternoon is not proof that spring has arrived.

Use the latter part of the cycle to check trays, growing media and sanitation. Preparing labels, pots, irrigation tools and bench space now makes a busy spring easier. Let minimum temperatures and the needs of each crop determine the schedule; milder and colder Canadian locations will not move at the same pace.

March

Turn seed-starting plans into a workable spring layout

By March, propagation can expand quickly. The waxing phase can prompt you to review tomatoes, herbs, annual flowers and other seedlings that fit your regional schedule. Plan for what happens after germination: trays require bench space, seedlings need potting on, and stronger sunshine increases ventilation demands.

Reserve the waning phase for bed preparation, compost, clean paths and irrigation checks. A mild coastal pocket may be weeks ahead of a northern or high-elevation garden, and late frost can remain a concern in either case. A well-run greenhouse provides useful protection, but only active temperature monitoring tells you what it can safely hold.

April

Balance stronger light with frost-aware hardening off

April can move from cold to intense sunshine in a matter of hours. Continue suitable sowings and pot on crowded seedlings during the waxing phase, but keep enough space between plants for light and air to reach the foliage. Overcrowded benches create uneven drying and make temperature control harder.

Make ventilation the priority around the full moon and waning phase. Confirm that roof vents and automatic openers move freely before a warm day tests them. Continue hardening plants in stages, bringing frost-sensitive crops forward only when your local nights and short-term forecast make that reasonable.

May

Make room for the busiest part of the greenhouse year

For many Canadian gardeners, May brings major planting decisions, but the appropriate week is local rather than national. Lunar tradition assigns tomatoes, cucumbers, peppers, herbs and other above-ground crops to the waxing phase. Use that association only after checking overnight temperatures and the continuing possibility of frost.

As established plants take over, shift from sowing to support and maintenance. Tie tomatoes, train cucumbers, even out irrigation and inspect ventilation daily. A waning-phase reset can include clearing paths, removing damaged growth and adjusting the layout wherever winter plans have proved impractical.

June

Keep vigorous growth supplied with air and water

June can bring rapid growth and long, bright days. Use a waxing-moon reminder to review succession sowings and fill suitable gaps with young crops. As tomatoes, cucumbers, peppers and other warm-season plants expand, reassess irrigation and airflow rather than assuming the setup that worked in May is still adequate.

Create a repeatable inspection around the full moon: look for unhealthy leaves, tight ties, stagnant air and containers that dry too quickly. Add shading during hot spells when conditions require it. Cleaning and selective pruning may fit the waning phase, but watering must always respond to roots, temperature and evaporation rather than a lunar date.

July

Harvest often and manage greenhouse heat

July’s recurring task is harvest. Use the lunar cycle to remind yourself to pick ripe tomatoes, cucumbers, herbs and other crops before they become overripe. Regular harvesting can keep productive plants manageable while creating space to consider another small sowing where the remaining season allows.

Heat can build rapidly behind closed glazing. Doors, roof vents and appropriate shading take priority over the calendar whenever temperatures rise. During a waning-phase tidy, remove diseased material, clean empty containers and prepare cleared areas for later lettuce, spinach or other crops suited to your local autumn.

August

Keep summer crops productive while preparing the next season

The source calendar lists new moons on 2 and 31 August using German local dates. Confirm both dates for your Canadian time zone. Use the first cycle to review succession sowing and the later one to decide which spaces will open, what can follow the summer crops and which plants are worth keeping under cover.

Continue steady watering and air movement around tomatoes, peppers and cucumbers. Thin only where needed, remove diseased foliage promptly and clean areas as they become vacant. Autumn light and temperature decline sooner in some Canadian regions than others, so base late sowings on the conditions you actually expect to maintain.

September

Choose carefully what earns the remaining light

September is a month for setting priorities. Use the waxing phase to assess any final quick-growing leafy crops, make the full moon a harvest and health checkpoint, and clear finished plants as the cycle wanes. Warm-season crops can continue only while light and overnight temperatures remain favourable.

Cooler air and shorter days allow moisture to linger. Ventilate when conditions permit, water with longer drying times in mind and avoid leaving foliage wet. Cleaning, soil care and pruning can anchor the waning phase. Keep appropriate space available if hardy greens or herbs are part of your winter plan.

October

Clear summer growth and prepare protected crops for colder weather

October can mean lingering harvests in one part of Canada and established frost or snow in another. The waxing phase is useful only for crops already adapted to low light or for established plants that still have suitable conditions. Starting new heat-loving crops is generally impractical at this point in the natural-light season.

Use the waning phase for a thorough greenhouse reset. Remove spent tomatoes and cucumbers, take plant debris outside the growing area, clean tools and organize empty beds or containers for winter. Good sanitation reduces avoidable pest and disease pressure, while ongoing ventilation helps control humidity in an occupied greenhouse.

November

Protect the quiet season from unnecessary work

November’s limited natural light calls for restraint. Rather than starting crops simply because a lunar date arrives, use the calendar to monitor hardy plants already in place. Cooler conditions slow both growth and water use, so check the root zone and air exchange before watering.

Cleaning, repairs and soil care give the waning phase a practical purpose. On suitable days, inspect gutters, doors, rollers and automatic openers, then remove fallen leaves and other organic debris. A tidy, functioning greenhouse is easier to manage through winter and simpler to restart in spring.

December

Record what worked and design a more practical new season

December is well suited to notes and decisions. Record the varieties that performed well, identify crowded areas and mark any irrigation problems. Around the new moon, turn those observations into a realistic bed and bench plan, ordering seed for the space and growing conditions you can actually provide.

Let the quieter weeks support maintenance rather than unnecessary sowing. After storms or snowfall, inspect the structure and follow its care instructions when dealing with roof or gutter accumulation. The calendar’s lasting value is the habit of observing, recording and preparing—not perfect obedience to every lunar date.

Lettuce, spinach & herbs

Traditional calendars place leafy growth in the waxing phase. Your practical checks should focus on even moisture, usable light, air movement and temperatures that do not push the crop too quickly.

Tomatoes, cucumbers & peppers

For tomatoes, cucumbers, peppers and similar crops, lunar dates can prompt sowing, potting on, training, inspection and harvest. Temperature, root space and overall plant health remain the stronger guides.

Carrots, radishes & beets

Root crops are commonly linked with the waning moon. Loose soil, suitable depth and consistent moisture have a much more direct effect on greenhouse-grown carrots, radishes and beets.

Scent, flowers and beneficial insects

Use flowers and herbs to occupy suitable gaps, support a varied planting scheme and provide successive young plants. Stagger sowings only when light, room and the remaining season support them.