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Applies climate-specific urban design strategies for hot-arid, tropical, temperate, and cold climates. Covers building orientation, shading, wind management, vegetation, heat island mitigation, stormwater, and thermal comfort.
Designs SEEDS regenerative inquiry cycles connecting place-based learning to ecological awareness for early childhood (5-8) or primary (8-12) learners around ecosystems and communities.
Share bugs, ideas, or general feedback.
Plan garden activities using solar, lunar, and biodynamic calendar systems for optimal timing.
The solar calendar provides the hard boundaries — frost dates and day length.
Solar Calendar Anchors:
1. Find your USDA Hardiness Zone:
- Zone determines minimum winter temperature and which perennials survive
- Also correlates with growing season length
- Look up at: planthardiness.ars.usda.gov (US) or local equivalent
2. Determine frost dates:
- Last spring frost (LSF): Date after which frost is unlikely (50% threshold)
- First autumn frost (FAF): Date after which frost becomes likely
- Growing season = FAF minus LSF (in days)
Example (Zone 7b, mid-Atlantic US):
- Last spring frost: April 15
- First autumn frost: October 15
- Growing season: ~180 days
3. Anchor seasonal milestones:
┌───────────────────┬───────────────┬────────────────────────────┐
│ Event │ Approx. Date │ Garden Significance │
├───────────────────┼───────────────┼────────────────────────────┤
│ Winter solstice │ Dec 21 │ Seed ordering, planning │
│ Spring equinox │ Mar 20 │ Start indoor seeds (cool │
│ │ │ crops: 6-8 wk before LSF) │
│ Last spring frost │ Zone-specific │ Direct sow tender crops │
│ Summer solstice │ Jun 21 │ Peak day length, begin │
│ │ │ autumn crop planning │
│ Autumn equinox │ Sep 22 │ Harvest season, cover crop │
│ First autumn frost│ Zone-specific │ Protect or harvest tender │
│ │ │ crops before this date │
└───────────────────┴───────────────┴────────────────────────────┘
Expected: Clear frost dates and growing season length for your specific location.
On failure: If frost dates are unknown, use conservative estimates (add 2 weeks to average LSF for safe direct-sow date). Local garden clubs or agricultural extension offices are the best regional sources.
The moon influences sap flow, germination, and soil biology. Two cycles matter.
Lunar Cycle 1: Synodic (Phase Cycle — 29.5 days)
┌─────────────────────┬────────────────────────────────────────────┐
│ Phase │ Garden Activity │
├─────────────────────┼────────────────────────────────────────────┤
│ New Moon → 1st Qtr │ Plant leafy crops (lettuce, spinach, │
│ (Waxing crescent) │ cabbage). Sap rises — good for above- │
│ │ ground vegetative growth. │
├─────────────────────┼────────────────────────────────────────────┤
│ 1st Qtr → Full Moon │ Plant fruiting crops (tomato, pepper, │
│ (Waxing gibbous) │ beans, squash). Strong light + rising sap │
│ │ = vigorous above-ground growth. │
├─────────────────────┼────────────────────────────────────────────┤
│ Full Moon → 3rd Qtr │ Plant root crops (carrot, beet, potato, │
│ (Waning gibbous) │ onion). Sap descends — energy moves to │
│ │ roots. Good for transplanting. │
├─────────────────────┼────────────────────────────────────────────┤
│ 3rd Qtr → New Moon │ Rest period. No planting. Good for: │
│ (Waning crescent) │ weeding, composting, soil preparation, │
│ │ pruning, harvesting for storage. │
└─────────────────────┴────────────────────────────────────────────┘
Lunar Cycle 2: Sidereal (Ascending/Descending — ~27.3 days)
- Ascending moon (moon moves higher in sky each night):
Sap rises in plants. Good for: grafting, taking cuttings, harvesting
fruit and aerial parts, sowing above-ground crops
- Descending moon (moon moves lower in sky each night):
Sap descends to roots. Good for: planting, transplanting, root
pruning, applying soil preparations, planting root crops
Note: Ascending/descending is NOT the same as waxing/waning.
Ascending = moon's position in the zodiac moving northward.
Check a biodynamic calendar for daily ascending/descending status.
Expected: Understanding of both lunar cycles and their garden applications.
On failure: If lunar calendar feels overwhelming, start with just the synodic cycle (waxing = above-ground, waning = below-ground) and add the sidereal layer in the second season.
The Maria Thun biodynamic calendar assigns each day to one of four plant organs based on the moon's zodiacal position.
Biodynamic Day Types:
┌───────────┬─────────────────┬──────────────────────────────────────┐
│ Day Type │ Zodiac Signs │ Favoured Activities │
├───────────┼─────────────────┼──────────────────────────────────────┤
│ Root │ Taurus, Virgo, │ Sow/transplant root crops (carrot, │
│ │ Capricorn │ beet, potato). Soil cultivation. │
│ │ (Earth signs) │ Compost turning. │
├───────────┼─────────────────┼──────────────────────────────────────┤
│ Leaf │ Cancer, Scorpio,│ Sow/transplant leafy greens. Water │
│ │ Pisces │ plants. Lawn care. Prune for growth. │
│ │ (Water signs) │ │
├───────────┼─────────────────┼──────────────────────────────────────┤
│ Flower │ Gemini, Libra, │ Sow/transplant flowering plants. │
│ │ Aquarius │ Harvest flowers and herbs. Apply │
│ │ (Air signs) │ preparation 501 (horn silica). │
├───────────┼─────────────────┼──────────────────────────────────────┤
│ Fruit │ Aries, Leo, │ Sow/transplant fruiting crops │
│ │ Sagittarius │ (tomato, pepper, bean). Harvest │
│ │ (Fire signs) │ fruit. Collect seed. │
└───────────┴─────────────────┴──────────────────────────────────────┘
Using the Calendar:
1. Obtain the current year's Maria Thun biodynamic calendar
(published annually, available from biodynamic associations)
2. Note which days are root/leaf/flower/fruit
3. Schedule your plantings to align day type with crop type
4. Avoid planting on "unfavourable" days (perigee, node crossings)
5. Combine with synodic phase: e.g., plant carrots on a root day
during waning moon for strongest root growth signal
Practical Reality:
- Perfect alignment (right phase + right day type + good weather + you're free)
happens 2-3 times per month. Don't wait for perfection.
- Match at least ONE calendar layer. Matching two is good. Three is ideal.
- Weather and your schedule always override calendar — a plant in the ground
on the "wrong" day beats a seed in the packet on the "right" day.
Expected: Awareness of biodynamic day types and how to use the annual calendar.
On failure: If biodynamic calendar is unavailable, the lunar phase calendar (Step 2) captures the most important timing signals. Add biodynamic day types when you have access to the annual calendar.
Stagger plantings for continuous harvest rather than one overwhelming glut.
Succession Planting Principles:
1. Same crop, staggered sowing:
- Sow lettuce every 2 weeks from LSF to 8 weeks before FAF
- Sow bush beans every 3 weeks from 2 weeks after LSF to 10 weeks before FAF
- Sow radish every 2 weeks (spring and autumn — skip midsummer heat)
2. Different crops, same bed:
- Spring: peas (harvest June) → Summer: beans (harvest Sept) → Autumn: garlic (harvest next June)
- This is relay planting — each crop follows the previous with minimal gap
3. Example Succession Calendar (Zone 7b):
┌─────────┬────────────────┬───────────────────────────────┐
│ Week │ Sow Indoors │ Direct Sow / Transplant │
├─────────┼────────────────┼───────────────────────────────┤
│ Feb 15 │ Tomato, pepper │ │
│ Mar 1 │ Brassica starts│ Peas, spinach (under cloche) │
│ Mar 15 │ Lettuce #1 │ Radish #1, carrots (early) │
│ Apr 1 │ Lettuce #2 │ Radish #2, beet #1 │
│ Apr 15 │ │ Transplant brassicas out │
│ May 1 │ Lettuce #3 │ Bean #1, squash, cucumber │
│ May 15 │ │ Transplant tomato, pepper │
│ Jun 1 │ │ Bean #2, lettuce #4 (shade) │
│ Jun 15 │ │ Bean #3 │
│ Jul 1 │ Autumn brassica│ Beet #2, carrot (autumn) │
│ Jul 15 │ │ Transplant autumn brassicas │
│ Aug 1 │ │ Lettuce #5 (autumn), radish #3 │
│ Aug 15 │ │ Spinach (autumn), cover crop │
│ Sep 1 │ │ Garlic (plant 4-6 wks pre FAF)│
└─────────┴────────────────┴───────────────────────────────┘
Expected: A week-by-week planting calendar customized to your zone, with succession intervals noted.
On failure: If the schedule feels overwhelming, pick your 3 most important crops and plan successions for those only. Add more crops in the second season once the rhythm is established.
Beyond planting, the garden has cyclical maintenance tasks.
Seasonal Task Framework:
┌───────────┬──────────────────────────────────────────────────────┐
│ Season │ Tasks │
├───────────┼──────────────────────────────────────────────────────┤
│ Winter │ - Order seeds (January) │
│ (Dec-Feb) │ - Plan beds and crop rotation on paper │
│ │ - Maintain tools (see maintain-hand-tools) │
│ │ - Apply prep 500 if ground is workable (late Feb) │
│ │ - Start earliest indoor seeds (Feb, 8-10 wk pre LSF)│
├───────────┼──────────────────────────────────────────────────────┤
│ Spring │ - Soil assessment and amendment (see prepare-soil) │
│ (Mar-May) │ - Direct sow cool crops after soil reaches 7°C │
│ │ - Transplant warm crops after LSF │
│ │ - Mulch beds after soil warms │
│ │ - First compost turn of the year │
├───────────┼──────────────────────────────────────────────────────┤
│ Summer │ - Succession sow every 2-3 weeks │
│ (Jun-Aug) │ - Water deeply, less frequently (morning preferred) │
│ │ - Harvest regularly to encourage production │
│ │ - Start autumn crop seeds indoors (July) │
│ │ - Apply prep 501 on fruit days (biodynamic) │
├───────────┼──────────────────────────────────────────────────────┤
│ Autumn │ - Main harvest and preservation │
│ (Sep-Nov) │ - Plant garlic (4-6 weeks before FAF) │
│ │ - Sow cover crops on empty beds │
│ │ - Apply prep 500 (late October) │
│ │ - Compost final additions, insulate pile for winter │
│ │ - End-of-season reflection (meditate checkpoint) │
└───────────┴──────────────────────────────────────────────────────┘
Expected: A seasonal framework that complements the weekly planting schedule.
On failure: If tasks are consistently missed, the schedule may be too ambitious. Reduce the number of beds or crops until the rhythm feels sustainable.
At the close of the growing season (after first frost), sit with the garden journal.
End-of-Season Reflection (20-30 minutes):
1. Find a quiet spot in or overlooking the garden
2. Bring your garden journal and this year's calendar
3. Review without judgment:
- What grew well? (Note varieties and planting dates)
- What struggled? (Was it timing, soil, weather, or neglect?)
- Which calendar alignments felt meaningful?
- What surprised you?
4. Note three things to carry forward:
- One success to repeat
- One failure to investigate
- One new thing to try
5. Close the journal. Sit quietly for 5 minutes.
The garden is resting now. You should rest too.
Planning begins after solstice — not before.
This reflection becomes the first page of next year's plan.
Expected: A reflective summary that grounds next year's planning in this year's reality.
On failure: If reflection feels like self-criticism, reframe: the garden is the teacher. Every "failure" is data. The only real failure is not observing.
read-garden — Observation skills that inform calendar adjustments mid-seasonprepare-soil — Soil amendment timing depends on the seasonal calendarcultivate-bonsai — Bonsai seasonal care follows the same solar/lunar frameworkmeditate — End-of-season reflection checkpoint (full protocol)maintain-hand-tools — Winter tool care is a scheduled seasonal task