It’s mid-February and I’ve started planning out this season’s seeding and planting schedule, this time with a little help from ChatGPT.
Over the last few years, I’ve managed to collect enough seeds so that managing them and knowing what I have is becoming enough of a challenge that I need an organizational plan. On a recent Joe gardener podcast, Joe Lamp’l shared an interview where he talked about a seed management spreadsheet and organization system and that got me thinking about taking it a step further by using ai to analyze it and develop a growing plan specific to my small backyard garden.
Using my seed inventory spreadsheet, I asked ChatGPT to develop a growing schedule starting with indoor seed sowing and progressing from spring to fall. I currently have four 4×8 raised beds and have been practicing crop rotation and composting for a few years now, and also have a couple of planter boxes that each hold four 5-gallon containers. From that data, combined with additional information about some of the specific varieties that I’d like to grow, my current seed starting setup, some environmental factors (i.e. zone 8a, a last frost date of 4/15, bed orientation, composting and winterizing activities, the fact that one of my beds gets partial sun, etc.), ChatGPT developed a seasonal bed-by-bed plan which I’ll share below.
I’m super interested to test this out to see how an AI-assisted plan will impact growth and yields over this coming season!
Indoor Seed Starting Schedule
| February 1–10 | Peppers (container-dominant, slow growers): • Jalapeño • Chocolate Beauty • Big Red |
| February 20–28 | Tomatoes (bed + container): • Cherokee Purple • Brandywine • Pineapple • San Marzano • Purple Bumble Bee (container) • Harvest Moon (container) |
| March 10–15 | Basil & Kale • Basil: 6–8 plants • Kale: 2–3 plants only |
My indoor setup includes two 10×20 seed starting trays with 3″ pots. This year I purchased a couple heat mats to go under both trays along with a set of LED grow lights to replace my fluorescent shop lights I’ve used for the past few years.
Direct Sowing Calendar
| March 10–25 | Cold tolerant crops – These should tolerate light frost and cool soil just fine: • Peas (Beds #2 & #3, arbor-facing edges) • Spinach • Lettuce • Arugula |
| March 20–April 5 | Roots: • Carrots • Beets • Swiss chard |
| May 5–15 | Warm-Soil Direct Sows: • Bush beans • Cucumbers (arbor) • Summer squash (Bed #3, one plant) |
| May 25–June 5 | • Okra |
Transplanting Calendar
| April 10–20 | Kale (Bed #4) |
| April 25–May 5 | Tomatoes (Bed #1 + containers) • Night temps consistently above ~48–50°F • Soil no longer cold to the touch • Plant deep (bury stem) • Mulch immediately |
| May 5–15 | Basil (Hold 1–2 starts back for June succession) |
| May 10–20 | Peppers (containers) |
Bed Layout
Bed #1 – Tomato Bed
This bed is intentionally simple and stable all season.
Early Season
- Nothing planted directly in the bed
- Soil rests under compost + mulch until transplanting time in late April
Late Spring
Transplant window: April 25 – May 5
In-ground tomatoes (single center row, 24″ spacing):
- Cherokee Purple
- Brandywine
- Pineapple
- San Marzano
Edges (optional, not crowded):
- Basil along outer edges only (12–15″ spacing)
Notes
- No follow-on crops here
- This bed stays tomatoes + basil until teardown
Late Summer
Late summer transition: August 15 – August 30
- Gradually remove tomato plants as production declines
- Leave roots in place; cut at soil line
- Top with 1–2″ compost
Fall Plantings
Direct Sow: September 1 – September 15
- Arugula
- Spinach
- Leaf lettuce mixes
- Mustard greens (Red Giant, Mizuna, Tatsoi)
Lettuce & arugula: re-sow every 14 days, stopping after April 30th.
Direct Sow: October 1 – October 15
- Garlic (hardneck or softneck)
- Shallots
- Green onions
Tomatoes are heavy feeders. The fall greens will love the residual fertility. Garlic benefits from loose, compost-rich soil. Greens grow until frost, pause, then resume in late winter. Garlic overwinters and harvests late spring
Bed #2 – Arbor Bed A
This is your vertical producer bed.
Early Season
Direct sow: March 10–25
- Peas along the long edge facing the arbor
- Dense sow, 2–3″ spacing
- Lettuce / spinach / arugula in the middle zone
- Alyssum (wait until March 15th)
- Plant alyssum along the outer edge (away from arbor)
- Spacing: 6–8 inches
- Let it spill slightly over the bed edge
Transition
Early to late crop transition: Late April
- Cut peas at soil level (do not pull)
- Remove spent greens
Late Spring & Summer
Planting window: May 5–15
Warm-season crops:
- Cucumbers (1–2 plants max) along arbor-facing edge; trained inward onto the arbor
- Bush beans in middle / outer zone
Late addition:
- Okra (2–3 plants max)
- Far outer corner, away from arbor
- Plant May 25 – June 5
Notes
- This bed intentionally carries more vertical mass
- Keep outer edge relatively open for airflow
Late Summer Transition
Transition window: August 1 – 15
- Remove cucumbers, leave roots
- Remove okra by early September
- Open the canopy completely
Fall Plantings
Direct Sow: August 20 – September 10
- Fall peas (snow peas or snap peas)
- Trained lightly toward the arbor posts (not dense canopy)
Direct Sow: September 10 – 25
- Asian greens:
- Bok choy
- Tokyo bekana
- Tatsoi
- Spinach
Optional October late add
- Cilantro (thrives in fall)
Winter behavior: Greens overwinter and rebound in February. Peas may die back with frost
Bed #3 – Arbor Bed B
This bed is the ground dominant side and balances the arbor system by staying mostly horizontal.
Early Season
Direct sow: March 10–25
- Peas along arbor-facing edge (lighter density than Bed #2)
- Alyssum (wait until March 15th)
- Plant in two small clusters near the front corners.
- Keep it out of the squash center zone
Transition
Early to late crop transition: Late April
- Cut peas at soil level
- Leave arbor edge mostly open afterward
Late Spring & Summer
Planting window: May 5–15
Main crops:
- ONE summer squash (Golden Glory)
- Ground-grown
- Planted ~24″ off the arbor, centered left-to-right
- Bush beans filling remaining open space
Notes
- Squash spreads outward, not upward
- This bed provides airflow relief for the arbor corridor
Late Summer Transition
August
- Remove squash once production drops
- Compost & rake smooth
Fall Plantings
Direct sow: August 20–September 5
- Carrots
- Beets
- Turnips
- Radishes
September 10 – 25
- Broccoli (compact varieties)
- Cabbage
- Kohlrabi
- Cauliflower (optional; choose early varieties)
October
- Spinach between brassicas
Winter behavior
- Roots sweeten after frost
- Brassicas tolerate hard frosts with no protection
Bed #4
This bed receives partial sun and will be primarily for roots, greens and herbs. It will carry the most succession, but the least stress.
Early Season
Direct sow: March 20 – April 5
- Carrots
- Beets
- Swiss chard
Layout:
- Roots in blocks or rows
- Chard spaced ~12″
Mid-Spring
Transplant (April 10 – April 20):
- Kale (2–3 plants)
Late Spring & Summer
Hold / thin as needed
- Carrots & beets harvested progressively
- Chard continues
- Kale slows but persists
Edges (permanent):
- Thyme
- Oregano
- Sage
- Dill (allow to flower)
Notes
- No heavy feeders
- Partial sun is an advantage here, not a limitation
Late Summer Transition
August
- Thin or finish summer roots
- Leave chard and herbs
Fall Plantings
September
- Swiss chard (continues)
- Kale (new transplants if needed)
- Collards
- Mustard greens
October
- Spinach
- Claytonia (miner’s lettuce)
- Mâche (corn salad)
Edges
- Perennial herbs stay
- Add parsley if desired
Winter behavior
- This bed can harvest all winter long
- Spinach + mâche are stars in cold snaps
Quick Bed Summary:
| Bed #1 | |
|---|---|
| Early Season | No planting |
| Late Spring (April 25 – May 5) | • Cherokee Purple • Brandywine • Pineapple • San Marzano • Basil only on outer edges |
| Late Summer (August 15 – August 30) | Gradually remove tomato plants as production declines Leave roots in place; cut at soil line Top with 1–2″ compost |
| Fall (September 1 – September 15) | Arugula Spinach Leaf lettuce mixes Mustard greens (Red Giant, Mizuna, Tatsoi) |
| Fall (October 1 – October 15) | Garlic (hardneck or softneck) Shallots Green onions |
| Bed #2 | |
|---|---|
| Early Season (March 10–25) | • Peas • Greens away from arbor |
| Late Spring & Summer (May 5–15) | Cucumbers (1–2 plants max) along arbor-facing edge; trained inward onto the arbor Bush beans in middle/outer zone |
| Late Spring & Summer (May 25 – June 5) | Okra (2–3 plants max) Far outer corner, away from arbor |
| Fall (August 20 – September 10) | Fall peas (snow peas or snap peas) Trained lightly toward the arbor posts (not dense canopy) |
| Fall (September 10 – 25) | Asian greens: Bok choy, Tokyo bekana, Tatsoi Spinach |
| Bed #3 | |
|---|---|
| Early Season (March 10–25) | Peas along arbor-facing edge (lighter density than Bed #2) |
| Late Spring & Summer (May 5–15) | Summer squash (Golden Glory) One plant, ground-grown Planted ~24″ off the arbor, centered left-to-right Bush beans filling remaining open space |
| Fall (August 20–September 5) | Carrots Beets Turnips Radishes |
| Fall (September 10–25) | Broccoli (compact varieties) Cabbage Kohlrabi Cauliflower (optional; choose early varieties) |
| October | Spinach between brassicas |
| Bed #4 | |
|---|---|
| Early Season (March 20 – April 5) | Carrots Beets Swiss chard |
| Mid-Spring (April 10 – April 20) | Kale (2–3 plants) Herbs: Thyme, Oregano, Sage, Dill (allow to flower), Tarragon |
| September | Swiss chard (continues) Kale (new transplants if needed) Collards Mustard greens |
| October | Spinach Claytonia (miner’s lettuce) Mâche (corn salad) Cilantro |